I Discovered A Catastrophic Problem With My Mercedes V12 Engine AFTER Almost Finishing EVERYTHING!

welcome back to legit streetcars and welcome back to another i finished everything in one video video and in today's video we're finishing everything on this the twin turbo v12 mercedes amg engine out of this my 2005 cl65 amg so this is gonna be one of my longer videos but you guys know the deal you know the rules grab yourself a beverage of choice a snack perhaps sit back relax and enjoy the show and make sure to watch the entire video from start to finish like i know you do with all of my videos because one of the most important youtube analytic metrics is watch time so if youtube sees you're watching more of the video they recommend my videos to more people we end up growing to the largest automotive youtube channel in the entire history of the world and you can be part of history just by simply watching the video all the way through so if you're not gonna do that maybe next time you hop in the shower just let one of my videos ride in the background that that's the same thing so without further ado we have a lot to do so let's get right to work we're just picking right back up where we left off in the last video which is installing the other cylinder head so i've already cleaned everything we have our new gasket on i've lubricated the inside of the cylinders so that on our initial first startup they aren't bone dry because this thing's been sitting here for a very very long time all the guides are in place and we have the turbocharger bolted up to the cylinder head which is cleaned off as well now the difference here is that today i have a different helper and i'm basically going to be manhandling the entire cylinder head myself but luckily i have a highly highly trained apprentice here that is going to help guide what is that the timing thing the timing chain good boy okay i'm gonna guide that okay make sure that that's not touching anything and it goes in there perfect okay how's that timing chain not bad that's bad okay straighten it out good boy i'll hold it up can you hold it up for me you got it good pull that pull that up good perfect now hold that timing chain up for me okay all right we are almost there just gotta find the good old dowel pins oh is that good all right cool we got that got the cylinder head on where's my apprentice good job buddy i wouldn't have been able to do it if you didn't guide this timing chain and hold it up for me you know that all right now what do we need next oil no sewing cylinder head bolts okay so i torqued this cylinder head in the last video where i speak to you guys about how i quit my full-time job to do youtube full-time i'll leave that linked down below so i'm speaking while i'm torquing and i did follow the specific sequence we did our angle torque some of you had wondered why i didn't use the digital torque wrench for the angle torque this will do it but it's 3 8 drive it's much shorter than big bertha so it's just easier with that so next up we have to install the last camshaft and i'm going to show you guys how easy it is to time an older mercedes v12 engine and then it's all going to be coming together pretty quickly because we're going to be going to battle with this entire mess right here and speaking of going to battle i'm doing battle right now playing raid shadow legends and i can't believe we're getting these kinds of graphics on a phone or tablet this game is basically taking over i'll leave a link for you guys to download this down below but there are over 500 champions with unique skills and earning new champions is one of the best parts of the game this is ignatius he loves fire and basically smokes the competition and this old dude is turvolt he's one of the hardest hitting in the game and can take a ton of damage and this month raid is jam-packed with summer events and activities like fusion events so you can get brand new legendary champions if you want to get a big head start playing rage shadow legends then download the game by clicking on my link in the video description box or by scanning the qr code new players will also get an awesome hero chinoro who's great in the doom tower you'll get 200k silver one xp one energy refill and one ancient shard and you're gonna find an extra reward in your inbox for the next 30 days so a big thanks to raid shadow legends for continuing to support automotive content creators like myself now let's go to battle with this table and get this thing bigger needs to grow now the last part of torquing the cylinder heads down would be the smaller bolts there's two on this side and two on this side that go to the front timing cover and i want you guys to place your guesses down below right now how many newton meters do you think we have to torque these bolts to all right don't cheat don't cheat but it's very little it's only eight newton meters or about six foot pounds of torque and i will double check it i'm doing a little more because we have this extension on here but you really want to double check your torque specs there are little tiny screws that don't require much and you can snap them off if you don't follow these torque specs so we are good to go there all right so i wanted to show you something before we get that other camshaft on and that is that we are going to place the harmonic balancer back on and we want to make sure that this is right at 30 degrees so there's a mark on the timing cover right at 30 so this is going to put the pistons exactly where they need to be in order to time this engine so it's always good to have that set up before you install your camshaft because you are going to be opening valves as you torque the cam down and we don't want anything to interfere with anything that's very very important so that is already at 30 degrees it was for this cam uh so let's get this guy on so just like the last video if you guys watch that it's going to be a little bit awkward putting this cam in because we're actually going to be pushing this down with the caps as we tighten them in a specific sequence but before we tighten these caps down we got to make sure this cam is where it needs to be so we're going to use our cam retaining plate and this is how you set the timing on these and with this plate now we know the cam should be tightened up right about there i've cleaned up all the cam retainer bolts and i have blown out all these holes with some brake clean and shop air and now we're going to use a little bit of engine assembly lube basically wherever there is contact or moving parts so at the top of the valve bottom of the lifter we're gonna put a little dab there i like to get some on the rollers also and i'm pretty liberal with this stuff we're going to be changing the oil pretty much right away after the initial start and you also want to lubricate where your cam journals are going to be rotating very very important and you get the point i'm going to use a bunch of this and that way we are fully protected on our initial start which i'm really excited for okay so now we're going to tighten this camshaft down and we have to follow a specific sequence you guys may have seen this in the last engine video but this is very very crucial so the caps are lubricated on the top sides and the bottom and now we just have to work these caps down little by little and be patient with this part don't rush it all right so it's a little nerve racking doing this but once you get them started it's all downhill from there so this is going to take you a while and then we're just going to torque these to 14 newton meters these are reusable bolts so they're not torqued to yield we're not going to be stretching these all right so sometimes it's easier just to throw on a sprocket so you can kind of sort of turn it a little bit with one of these bolts and we have our little cam adjustment tool perfectly flat down on the mating surface where the valve cover goes and now we're going to do our final torque 14 newton meters i add a little bit because of our extension and i did put a tiny little bit of loctite on these cam retaining bolts it doesn't call for that but i don't think a little bit hurts i don't want to add any more torque but i always just kind of gently go around just to make sure i hit every single bolt this is very important you don't want to miss one and i think we're going to be okay and 13 14 our cam is installed all right all right i don't know why i was taking that camera tanner off we definitely still need this so right now i'm going to install the screws to positively mount this to make sure our cam is locked in perfectly so that we can set the timing last up we have the last two timing chain guide pins i like to take notes and write stuff on things that i know i'm gonna forget about later so it's hard to tell but this says bottom i don't remember exactly why this is the bottom one or if it makes a difference but i wrote bottom on there so we're not going to waste any time this is going on the bottom all right our bottom pin is going through just like that and these are threaded so you can remove them there's a special mercedes-benz tool to remove them as well and i made my own and it's just a bolt with a nut and a couple of washers we're going to use this to gently tap it in okay that's nice and bottomed out and we didn't destroy our threads which is always a bonus then we just have to do the same with this guy which is in a very tight spot with this oil filter housing right here but with our little extension bolt we should be good i like to move the guide back and forth every once in a while while i'm doing this just to make sure it's not binding okay we need a punch here almost there we're good that's it guide is still moving freely and we can unscrew this and we are good to go new guides are fully installed and we're ready for the timing chain gears next up is the most important part of the job and that is the timing so we're going to be installing the camshaft gears and these can only go on one way as there's a little dowel that fits in right there so you can't mess this up so what i like to do start on this side pull up the chain so there's no slack make sure it's lined up with the guide properly and we're going to kind of get that out of the way and just put this gear right on the cam like so so that's there that's the only place it can be now we know we have no slack and we're just going to go ahead and wrap this around so at this point this gear is set we'll go ahead and put one of the three cam sprocket bolts in and we'll torque these later but i just want to hold that in okay so that's good next up we have the passenger side cam sprocket and this is going to be much of the same except we're going to kind of eyeball this and then wrap the chain around the sprocket before it's actually pressed up against the cam shaft and that's because it's going to be hard to roll the chain over and okay i think i got that on the first now hang on a second so if you don't think you've got it you can just simply take the chain go one tooth over there we go oh that's too much let's go back there we go all right i think i actually had it on the first try make sure that the guide is lined up nicely with the chain and then the reason i didn't completely torque this other side is sometimes this is a little bit of a dance you gotta move that side a little bit give it some slack to get this to line up and i think we are actually off a tooth it's not working out it's no big deal you'll know guys you'll know you really can't mess this up okay there we go see how it just slid right over now we know that's perfect this guy has come off a little bit no biggie do a little song and dance on and on okay so both of our sprockets are ah they say they're both pressed up against the cam this one popped off oh okay hold on a second let's get some let's get a bolt in here we already got one in the other side and then just make sure that the chain is right in the middle of the guides okay triple check everything people this is very very important and this is normal to have a ton of slack on this side because we haven't put the tensioner in just yet everything looks good all right cool let's torque uh these bolts here and we are already holding the camshaft so that's good and i think we got to torque these quite a bit okay so yeah not only do these need to be torqued down to 20 newton meters but it calls for a 90 degree angle torque which means we have to replace these bolts and i already bought the bolts at the dealer and it looks like they changed up the design a little well mostly just the head of the bolt so i'll take a couple of these old ones out and then we'll install the new ones don't want this gear coming off after all of that work really wasn't that much work pretty easy to time these things i'm not gonna lie if you have these cam holding tools i mean that's pretty much all you need set this at 30 set the tools and make sure you've taken up all the slack especially on the first go-round on whichever one you start off with first and you're good to go this doesn't have variable valve timing so no craziness there either okay whoa that was a close one if that fell down there that would not have been a good day be careful be careful you don't drop anything in your engine that you've just completely resealed and since we have the cam holding tool already on there we can go ahead and torque these so we're going to do 20 newton meters first and then we're going to hit it with a 90 degree angle which i'll do with this guy this time and in the work instructions it doesn't technically say to replace these bolts but if it's a stretch bolt i like to replace them anyway because they're really only meant to be used once once you stretch them they're already stretched so maybe somewhere in the notes that said to replace these i couldn't find it but we're going to do it anyway very very cheap insurance on something that is super important don't want this gear coming off all right we're set up to 90 degrees on the tool this is really nice there we go you can kind of eyeball this too like we know 90 is going to be straight up right there yep so this will be like that right on last one all right we're good to go timing gears are properly torqued next up we're installing a brand new timing chain tensioner and there's nothing wrong with the old one but just kind of for good measure and this just has one crush washer here to seal it and this one as well we're not going to mess with that we're just simply going to thread this guy in and it's going to push on this guide right here and give it the proper tension automatically so you can see here you can see this guy since it's spring loaded this will move a little bit in and out when the engine's running but it's gonna take up any and all slack that may be in the chain which you guys watched a few videos ago you know this timing chain didn't stretch at all but this doesn't require any adjustment you just set it and forget it okay so at this point i'm going to take the cam retaining tools off and we're going to turn this engine over by hand now i've poured oil all over the cam shafts everything is pre-lubricated and also i lubricated the cylinders last video as well so we can spin this by hand a few times it's not going to hurt anything and you always want to do that after setting the timing go really slow if you feel any resistance like a valve hitting a piston stop you've messed something up so i'm just going to go really really gentle i'm going to watch the timing chain on the guides as well let's make sure everything is lined up everything looks good so far and it feels good we don't have any spark plugs in there so it should be pretty easy to turn around you can watch some of the valves go up and down in here as well and i can already tell this feels really nice and then what we'll do i think we've already gone around once we're gonna go right back to 30 on the crank which is right there and now our cam tools should go right back without any fuss at all they should just line up perfectly there we go that's one and we pretty much know the other one's going to go to there's our other one right on perfect so this is also a good indication that there is no slack in the chain it hasn't stretched at all we're at 30 there our cam tools fit the timing chain is perfect nothing's slapping around we have the proper tension we're good timing's done v12 timing is completely done at this point now we can start sealing her up so we have to get these two front covers on and then the valve covers and then all the little stuff around it so we're definitely getting somewhere this is awesome this is starting to feel good right now it's been like four months since i started this whole thing i'm dying to drive this car and to just get everything get out get out of the garage so i can clean it's so bad in here so along with replacing the guides we're going to replace this guy as well this is going to ride on the cam shaft and there's a seal so i got to push it on all the way there we go requires a snap ring as well so that ring is on there we're good to go there next up we have the left side cam cover but there is a seal deep inside of there that we have to replace before we rtv glue the back side of this and bolt her up all right so if you have an old cutting board that usually comes in handy this is a shop tool now so we're going to go ahead and just whack this from the inside and always pay attention to how deep the seal sits in case it doesn't simply bottom out there we go there's our old one okay so here is our new seal just gonna place it in here and then i have a seal driver with the proper cup i'll leave a kit linked down below i have a really nice one that has pretty much everything covered i'm just going to be gentle with it check periodically that you're not going too far in this case we can just push this thing all the way out one more love tap for the kids okay three more and we are perfect all right we're doing a little mercedes-benz rtv sealant should be good right there okay now we're ready to slap this guy on there's a couple of dowel pins to guide us which is always nice try not to get glue all over the place or rtv all over the place like i'm about to do there's that there's that perfect all right our seal is good right there we have our screws and as you can imagine we're gonna put these screws right in here there's five on this side seven on the other i've cleaned them they were all put away in a nice plastic baggie so we weren't wondering later on because god knows i've forgotten so so many things during the course of the last four months but not this not this part all right let me tighten these so nice to see the rtv just kind of squish out so satisfying this thing is never gonna leak you can just do these good and tight to be honest with you but we're gonna torque them why not it takes two seconds and now we know they're good okay i'm allowed to do at least a couple of dumb things during the course of a big engine project not sure if any of you guys had noticed this but i put sealant on the inside of this part of the cover that doesn't get sealed against anything the valve cover seals right against this top part so i already wiped it away no harm no foul it hadn't dried yet so i just wiped it away really easily but uh yeah that was dumb that was dumb you don't need sealant right behind this okay next up we are replacing this nice shiny water pump with this nice shiny water pump from mercedes that actually spins see that's what you want this is what you don't want and it wasn't always this way i think we may have destroyed this pump it looked to be the original it wasn't that good to begin with but i blasted it in a media blaster and i don't think it survived i think some of the stuff got past the seals so we're going to get rid of it it doesn't work first we got to pop off this crank pulley so we do have a new bolt i'm using the old bolt every time i put this on and off all right and i had just installed this when we set the sealant for the front timing cover because it does share some of the bolts so there's not even a gasket in here we're just going to swap this right out it's just bolts and then the new one will pretty much look the same okay goodbye all right i'm lubricating this water pump seal i've done this a few times with some of the other seals as well using uh an old jar of mercedes-benz uh we use this for sunroof it's sunroof grease but uh can pretty much be used on on rubber seals as well and it helps hold this thing in place so it doesn't fall out before we put the water pump on all right we got our new seal stay stay stay stay i'll just put this guy right there perfect a couple starter bolts well not starter bolts but you know what i mean bolts that are gonna start us off that are gonna hold the water pump and since we have the old one here we're gonna use it as a nice little map they're like three different length bolts for this water pump so instead of playing around i just leave them all in there okay last one [Music] cool all right new water pump is on double check all these so we don't have any leaks and let's get this guy on next up we have this that's gonna go right about there and it has two seals on the inside that i've already replaced this guy and this guy right here and we just need a little bit of black sealant and we're going on all right here we go all right perfect all right we'll install some das bolts all right i'm double checking the torque on this guy and guys it is very very hot in this garage it's got to be well over 100 degrees in between clips i do have a fan and some water so i'm not going to pass out but now that that is torqued we are ready for our valve covers and then a mess of hoses vacuum lines and wires not gonna be fun all right it's a new day and we're installing new valve cover gaskets and this is actually the second time this has gotten valve cover gaskets in probably the last i don't know fifteen hundred two thousand miles they were leaking on hoovey so the wizard replaced these already not knowing that i'd be taking apart this engine completely so i could probably get away with reusing the old ones but i'm not gonna mess around i don't need any issues and so mercedes is selling two sets of valve cover gaskets on this car we're making them tons of money and i've made probably about five runs to the dealer for miscellaneous o-rings and washers and stuff that i run into as i go along so i have to drive downtown to get these parts i'll actually be going there this morning as well because i forgot the gaskets for the top lines going to the turbo so anyway this is pretty much done let's seal it up well hang on before we install the valve cover i have to use the 100 year old oil can to lubricate this engine so i already kind of pre-lubricated it i dumped a bunch of oil all over everything but this is a tradition here at legit street cars and we have an engine apart i found this thing buried in my backyard and i'm gonna assume it's 100 years old i kind of made that part up but lubricating everything we have a bunch of oil already on the chain and going down the guides so at initial startup we are well protected and it's just more or less just kind of fun to do this that's all goodbye valptrain that's it probably the easiest part of this job place it on zip some bolts in we got some cam sensors to install without the intake you can look all the way around and make sure that the gasket isn't pinched anywhere so we're good there and here is the driver's side nice this looks so good so a lot of the aluminum parts on the engine like the valve covers in the front cover i had blasted over at fluid motor union in a media blaster so this isn't painted or anything this is their natural finish and it looks so good one thing i want to point out is that pictures are worth a thousand words or a million words in the case of a v12 mercedes so i took a ton of pictures otherwise i would have forgotten where things go like this little brackets that attach to the valve cover so eventually i would have figured it out but i just took a bunch of pictures now i can look back i know which one goes on which side after a few months of disassembly you're going to forget this kind of stuff so now i'm not messing around and our brackets are where they should be so uh all right i'm going to zip bolts in you guys could probably imagine what that looks like torquing them all down um and let's get to whatever's after that i don't really remember right now and with the valve covers installed it's time for the air pump switchover valve i believe is what this is technically called and it's got an o-ring on the inside too these do fail so i am replacing it very easy to do lots of plastic stuff we're placing because it's just a matter of time it's inevitable it's gonna go bad we don't want that okay i think that's how that goes looks pretty good to me little zip zip and a little torque torque [Music] good all right so i just put the hose on there and this should slip right on it's always nice getting these bigger chunks out of the way because it just makes the engine look so much more complete and there's that there's only two bolts that hold this guy on which i thought was kind of weird but that's just how it is little zippity-doo and you know what's coming up next good old torque probably just go good and tight on these but uh anything you can get to easily just torque it and in this case when you're removing you know hundreds of fasteners it reminds you that you've tightened it so we're good to go here all right next well before things get too buried we're gonna install these so these are surge valves these guys are made in the united states by weiztech engineering they're very nice parts and what they do is they make the turboy sound when you let off the gas so this is a blow-off valve basically and it is releasing the excess boost pressure that the engine isn't going to ingest and i'll make sure once we get this thing running to compare my to the real thing to see how accurate i am all we need to do is remove these three 10 millimeters all right and there we go and i've never personally seen these fail but i have heard that these diaphragms can rip these look to be in good shape all right then we just mount this guy up like so the orientation shouldn't matter at all and i have put a little tiny bit of loctite on these bolts because it looks like that's what mercedes did many many years ago all right let's tighten her up [Music] well i gotta say sound or no sound they look really nice okay so for some reason i have a brand new one of these guys this is a coolant pipe at the back of the head here and when i went to mercedes i ordered like a thousand bucks worth of miscellaneous seals and gaskets and i guess this is one of them this probably was a mistake and i can return it so anyway let's pop this off it should just be a little seal like this on the inside and then i could probably save some money by returning this undoubtedly really expensive coolant pipe there we go yeah it's just a seal that's all kind of pancaked out so let's clean this up we'll just reuse this i'm sure this was probably like 30 bucks or something i can get back so right back in the bag you go coolant pipe i'm on a budget here people and there you go brand new seal old part no need to waste any money on this guy good as new sometimes it's good to throw yourself a little softball so go ahead and screw on the oil filter and this just makes me feel a little bit better it looks like we did a lot even though that was super simple and it's just because i'm getting mentally prepared for a whole mess of vacuum hoses and wiring harnesses and stuff like that before we get the intake manifold on stuff that i don't have any real recollection of where any of it goes because it's been so long if i remember correctly we have the turbo oil and coolant lines to install next and these went in a specific order and i believe i am to slide this one in the back of the head first like that okay [Music] and then one of these goes before the other i don't really remember which one i think we're gonna find out though okay hang on hang on this is confusing this one come back out this guy's gotta be put in here first i think for all of this to fit properly then and then this one goes on no hang on hang on hang on we gotta do the other side first that's it yeah that's the ticket this guy goes in first it's the fatter of the two then this one i don't know i don't know let me get this done i'll show you the final result they go they go somehow all right i figured it out but it wasn't without struggle i totally forgot that these shields go on first so i had to snake them in there as kind of a pain in the butt but i did it without having to loosen up these lines i have to unbolt that right there because this gets held in uh by that bolt and this is a vacuum line there's another one in here i have to secure uh and then yeah it's all kind of sort of starting to come back to me this goes to here which is broken i have a new one i got to replace that and these two just come out of here so i think we're pretty safe to just go ahead and put the intake manifold on a lot of the vacuum lines are going to make a lot more sense once that's on to kind of remember where they went but i did take a lot of pictures and something i totally goofed on was i had written r on this shield and l on the other one this is the left side that is the right so it took me like 20 minutes to figure out i had done that uh just a big waste of time i couldn't figure out why these wouldn't fit on their respective sides and and that was why so i labeled a few things this is left that's right i mean it's left but it's correct and let's see we have this guy here i know i made a white mark somewhere on the harness to tell me that it plugs in right there so lots of little notes from four months ago when i took this all apart to attempt to make this go back together quicker and then we have this mess of stuff right here i got to figure out but a little table update for you guys it's getting bare we're getting there this is looking much much better once the intake's out of the way that's the bad abc pump so that can go and uh you know what let's do some pulleys they're all cleaned up and ready to go on the engine another softball all right let's do this in real time i think i can knock this out in about a minute putting pretty much most of the front pulleys on the front like there's a rear so we'll start off with the tensioner this is brand new and i let the guys from jr garage have the original off this engine because they had an s600 that was in wisconsin right by me broken down and we needed to get them going so so that's that i labeled this one l for left i think it goes right here once i get that off come on come on where am i doing on my timer there's that there is this one come on people ah i don't know why i'm giving myself one minute to do this taking my time on everything else that's for sure and this guy goes here ah where's my thing oh okay okay have i blown past a minute yet kind of feels like i did that's that stop getting stuck and bonus bonus round if i could find them oh no i'm totally totally going past a minute i gotta lock take these we're gonna do the uh the water pump pulley just really make this look complete here come on come on come on there's that all right you know what two minutes how about two minutes go go go go go this is dumb completely unnecessary ah okay some of these have way more loctite than the others okay pause that timer i gotta get a tool i forgot my t30 oh wait no it's right here don't pause the time bam all right that's torqued okay trust me it's good these will torque get out okay how'd i do how'd i do on time was that two minutes that had to have been like two minutes right not bad not bad look at that that looks complete we're rocking and rolling um okay i think next up we're gonna do the ac compressor which means i gotta i gotta lift the engine up with the car and a chain yeah it's pretty normal i'll show you okay hang on before we put a big ac compressor right here we need to reinstall these oil cooler lines otherwise we're never going to be able to get to them i'm sure it calls for the removal of the ac compressor to replace these seals so we have brand new seals of course at the end here these are lubricated we want to make sure these go in nicely because we definitely do not want to have to take the ac compressor off if these leak i don't want to do anything honestly i just want this to seal and be perfect so anyway let me uh finagle these bolts in here and then we could finagle the ac compressor in here somehow it looks a lot more difficult now fire in the hole all right one more okay it should be good and i know this looks weird unless you guys saw the disassembly video and that is because there is one bolt right here at the bottom of the ac compressor that you can't tighten or loosen without lifting the engine up so if you're doing this in the car you're going to have to either lower the subframe or jack the engine up somehow some way so we have a lift and a car and a bar so this is an engine support that you would normally use just like this to support the engine if it was still in the car and you needed to drop the subframe but in our case we've had to get a little creative so we have a chain attached to that bar going right to the front timing cover and just lifting the engine up just a little bit and this is the bolt in question so without the engine jacked up the head of the bolt is somewhere in this area and you just physically cannot get a tool on it so now we will be able to tighten up this ac compressor but not before we installed this hose so this was a hose that had a small leak uh it had a little nick right in the middle and mercedes decided not to make this anymore this is an abc hydraulic hose so i had to have this custom made at a local hydraulic shop and uh cost me 82. so not too bad and they were able obviously to reuse the proper ends off of the old hose so they connect one of them goes right over yonder and the other one eventually will go to the new abc pump which is sitting right there in a bag and here it is with the ac compressor fully installed our oil cooler lines are installed uh we have some of the abc lines pretty much most of the abc lines installed as well these are trans cooler lines that will eventually hook up to the car we have to hook up that connection right there and then the alternator goes on but before the alternator goes on we have to snake this harness through this area so we have an oil level sensor a knock sensor right there and it's pretty much impossible to get to these connections with the alternator there and looking back at the old footage what makes the most sense to do now is actually to install the intake manifold and then we can kind of just put this entire harness right over it and start fishing it into places and then do the alternator and then do the abc pump and kind of close it all up and wrap it up so anyway another big chunk is coming off the table right now and it's a pretty looking chunk and that would be the intake manifold once we laid this intake manifold on and then put the harness over it stuff is about to get real we're going to empty out that table really really fast everything's going to go right together uh really excited for this part guys this thing is going to be done but before we do that we just want to take a look inside of the intake runners and we're going to blow them out as well just like that make sure everything is super clean all right cool so i'll wipe this down we will get the gaskets on and it's intake time brand new mercedes intake manifold gaskets going on my last box with gaskets that need to lay flat um let's see how do these go all right gaskets are in place they have little dowels luckily to sort of hold them and what is this stay there's my light what is that what is that are you kidding me what is going on jeez oh no no no no no no [Music] you've got to be kidding me no um okay so something has happened i have found something that i wish i found at the very beginning of this video which is like a week ago um yeah i've been filming this a little bit each day um there's something wrong with one of the cylinder heads let me just show you if you guys remember these cylinder heads were ported and polished and when i got them i mean they look brand new they were perfect so i just kind of blew them off with air everything was good everything was cleaned they were 3d scanned and checked and everything was great these took about three months to get back to me this is why the project has taken so long and uh yeah so i got the gaskets on and i'm trying to feel anything but horrible right now so i'm feeling grateful that i found this um uh yeah right here do you guys see this this little pin hole right there so right right there my pick is sticking inside of that is insane there is a pinhole um so this port this intake port was uh was ported and it's possible they went too deep although i don't think so just kind of looking at this there we go um i think something fell i think something fell on this because if it had gone too deep uh you know it looks just kind of jagged i guess i don't think the tool went too deep otherwise um i would imagine this would be bigger i don't know i don't know guys but there's a hole right here and there is a coolant jacket underneath there you can see the freeze plugs along there and then this is the line right here for the coolant so coolant runs there and coolant getting sucked into cylinder is not good um so this is a big bummer obviously the cylinder head is on a bunch of stuff is on many many hours has gone into putting this back together and had i noticed this uh before i would have just sent the head back um which you know still would have taken a long time to get done but uh okay here we are okay so i just got off the phone with uh victory road performance who had these heads ported and they spoke to the actual guys that did this job and they said it didn't leave that way um they had done the 3d scan they don't believe it was done during the porting job and uh you know at this point in time i don't i don't really know what to believe i mean i'd like to believe that uh i'd like to believe this happened maybe during shipping or something like that i mean really they just were sitting in my garage in a box and then i i just put them on so you know i didn't drop it or do anything crazy um yeah so at this point um a couple of options this could be welded i think and i went around and i kind of like tapped around with a punch and a hammer let me just show you what i did okay so with a little punch and a little hammer i'm not going too crazy here just kind of going around and just tapping in the general vicinity that we had these issues now if you were to hammer it you would you would go through even on a brand new head it's not you know super thick but i mean it's not it's not doing anything and then most importantly if we go right around where we have the issue i mean it's solid we're not going right through just just really right up to the edge we're good oh man so i don't know i don't think it was the pork job i think something hit it there somehow so the shop did say they would fix this for free send the head back and they'll take care of it no problem they'll weld it up grind it back down everything will be perfect um at the same time i think this can be done on just the way it is i think we can just leave the head the way it is we have plenty of room we haven't put it in the car yet so i think a really skilled tig welder could just weld that little spot we'll sand it down obviously protect anything from going inside of the engine and i think that would just be fine um that is an actual repair when people are porting heads uh you know sometimes they get welded in spots and ground down for different airflow you know characteristics and stuff like that so uh tig welding inside of a cylinder head is normal it's something that can be done um so i really don't want to take this all apart if it can be done in-house so i think i'm going to try and find uh a welder like a mobile welder to come out here see what they think get their honest opinion and um and go from there so definitely not the way i wanted to end this video um the only thing i can say i always try to look at the bright side if i didn't notice um this issue and we would have started it up with coolant everything in there obviously we probably would have hydrolocked that cylinder um especially the you know it will be burning coolant then if we shut it off and the cooling system was still pressurized it would just fill that cylinder uh with coolant and that would be horrible and then we'd be looking for probably a new motor so this is horrible like i'm not happy but at the end of the day it's not catastrophic yet so obviously i will keep you guys posted this is gonna take some more time but you guys have been patient already with this project um so i just gotta figure this out follow me on instagram and on facebook at legit streetcars if you guys want a quicker update um and in the meantime uh yeah i don't know guys i'm gonna end the video there uh i hope you like this video regardless we didn't get everything finished like i wanted to so if you did thumbs up share the video subscribe if you're new uh most importantly i hope you guys have a way way better day than i'm having right now and i'll catch all of you in the next video [Music] you

Channel: LegitStreetCars

Views: 335,523

Rating: 4.9591818 out of 5

Keywords: TWIN-TURBO MERCEDES V12 ENGINE, V12 ENGINE, REBUILIDING A V12 ENGINE, LEGITSTREETCARS V12 AMG, M275 ENGINE, HOOVIES GARAGE CL65 AMG, CL65 AMG, MERCEDES-BENZ, CARTREK CL65 AMG

Id: DoYEdufOKV4

Length: 44min 43sec (2683 seconds)

Published: Sat Jul 10 2021