Remanufacturing a Packard V12 engine

[Music] Loretha windmark light would restore cars again as promised this is a detailed video on how we store pack of 12 engines this is a 1935 Packard v12 we pulled out of the car and just do all the usual teardown stuff you can see our shop here in the background shop clean the rods the crank all the cast iron parts and that's of course after we bake it all the first thing we had to tackle these rods you can see that somebody put some very poor sight sight thrusts on them and you can see how that bearing right there that we're running not square parallel so we had some challenges and getting the rods back to the way they should be which is like this and that is the side thruster completely welded up all the way around and then we C&C cut that all back down again so that we have a square and parallel surface that takes up the site goes to 4,000 like a kid do so then that's what you end up with we check all the rods for straightness we hone them out and we put in modern modern bearings and then of course we check everything again we have 14 years cutter on RS 79 80 it cuts the next two heads and the block anything else we want to deck next operation is Renishaw probing we find out where the hole centers are for all the cylinders with either bore on those values or we can bore on whatever value we want to put in there maybe somebody messed up in the past and they didn't get the the hole in the right spot so this is really nice to have this information and that we can make your Corrections that we have to do and it's just a simple boring operation to go down in there and get it within about four thousands and 87a which is our diamond home and the piston I say that this machine isn't at thousands of holes we set a dining and into a computer game called and then we'll go in there use a board gauge and if you are normal checking like everybody else the next thing is into the valve machine is a rattler SGA TM and it cuts all the seats of the valves it does all three angles in one shot any valve can go in any hole and I honestly think that 80% of your break-in is your valves and with this we found that seven eight nine polls on the dyno it's all done it's set to go onto the crank and somebody had hard chromed up this journal and as you can see it was flaking off it almost broke the crank machine when we were trying to get it off there they even pinned it and tried to get it to stay well it's the wrong way to do it we welded it up grounded down Randy Winberg just is does a fantastic job on her crank shafts for us it was just amazing a four micron finish on the thing and it balanced up just beautiful on these v12s you don't to run bob waits on a balancing and and so it makes a lot easier look at the sizes on this crank Randy just did an amazing job I got about two tenths off on one main bearing as all and I measured it like four times because I've never gotten a crank back that is this good so it makes very easy work of me to go over on to the under line boiling machine because once I set my mic to one size I can just go and we like mm clearance I know the book calls for one and a half but we really like to it just makes the engine run so much better and you'll see how easy is crank spins Here I am setting up to do this the thrust the book calls for four thousandths where I was shooting for four to five thousands on this and I believe this one came out of five thousands and it gave us just barely enough Babbitt on this thing for me to accomplish this operation but it turned out real good we landed right on five thousandths in thrust and we were within two tenths on all of our main bearings on being the size of where I wanted to be so it worked out just perfect the next thing that that we needed to do is measure it and we sure that our crank is in the middle of that bearing and so yeah it just keeps shaving it off here I've sped this up quite a bit because this operation does take some time we have to keep checking it making sure we're staying in the middle here I use a depth micrometer and make sure that both sides of the bearing are the same and make sure our crank is right in the middle and then of course use it outside mic or inside mic to check the width of the of the surface area there so we'll go ahead and install the crank in the line boiling machine torque down all of the main bearing caps and the moment of truth give it a spin and the thing just spun beautifully some engines come out better than others and this was an exceptionally nice engine after you get it off the line boring machine it's off to get the thing cleaned and so we roll it outside and you just blast our neck out of it very hot see to make sure it's super clean and we get it dried off real quick so it doesn't run first operation is to drive in the cam bearings so we have a normal cam bearing tool I get all the cam bearings driven driven in sometimes I have to make new ones and I've put out videos on how I do that this one I didn't have to the cam went right back in and you have to be so careful with these Babbitt of bearings not to Nick one as you're putting the cam in but this one went in just beautiful we marked all the bearings before we took them out and make sure we got everything in the exact same spot and we put it in there and she just spun beautifully so here it is the Camus's is ground and cleaned up and already installed in the block on these Packer twelves you have to make sure that your drive gear for the oil pump and more importantly the distributor is lined up there's a mark on each one of the gears if you don't get that in the right spot your distributor won't be in the right spot and your life is very bad so be sure to do that here's all of the roller rocker and the hydraulic box assemblies they're all cleaned rebuild new Springs lap seats the whole nine yards so then we start on the Odyssey of doing the valves and we have a special fixture that pushes that hydraulic arm back and then we can make sure that we get the right value we stab 35 thousandths and the foot calls for 35 to 55 thousand so we like it down on the lower end just give you more life in the engine so it's a back and forth between that valve machine and to the block and checking it with a fever beads and making sure that all of them are in the right right parameter it's just a time consuming thing I set up my valve winder as close to block as I can I don't want any of that stuff to get in the block so I said with a few feet away and make sure and grinding away from the Kawana and then I can do it as quickly as I can so back and forth back and forth and eventually you get there on 24 hours and you can only take a cup of sour so because they are all installer or going down the line to install them it's just a time-consuming process if you have to get this step right to come back and get this fixed is it's just a tremendous amount of labour so right the first time all the valve springs are checked on these on this particular job we had to add 60,000 shims to get them to the book value on they have a loose value or just sitting there on the bench and then there's a compression value at a certain height so that's what I'm using that digital caliper for a lot of these engines have valves that have an upside and a downside on them a tighter wound end and a looser wound end and so just pay attention to that make sure you get the right the right direction on those Springs and go down the line on a packer 12 you have to start on one end and you work your way all the way down to the other end otherwise you don't have enough room to get your tool in there and it makes your life very difficult ok time to set the crank in and I use a rigid crane to help me because I'm usually by myself so lower down in there nice with the crane and it makes it really easy for me to do that back into the engine clean room and torquing down the main bearings and the moment of truth it just spins beautifully beautiful crank work a beautiful bearing work turns into great engines and this one really turned out well time to get the Pistons out and line everything up count all the pieces make sure everything is right and correct I have had an incidence or two word guess what they sent me the wrong wrist pin or something so I like that to layout every part and count them and make sure I don't have too many parts or not enough parts there's nothing worse than get down to the end you got one more piston to go and there's three keepers sitting there well did you have an extra one in the package or did you forget to put one in here I am drilling out the bearings make sure that you get all the oils passages drilled in those new Darren's before you install them the block here is pretty much all put together I put the head studs in and then I turn my attention back to the bottom side I put all the oiling system together of course everything has been cleaned and inspected and pressure tested here's the heads all surfaced off minutes off to the pink booth I like to put the heads on without any nuts or anything like that I also like to put the manifold gaskets on and it just kind of has a nice surface that way here it is we got it painted this was a little bit of a different job and that we had to put patina back in this engine this is a older restoration car and the owner wanted it not to look totally brand new Pebble Beach on the outside of course on the inside everything is has to be perfect we won't do it any other way but we're happy to accommodate somebody who has an original car and they want to keep that original look so once it's assembled up to this point it's back out of the engine cleanroom over to the jib crane and lowered onto the dyno cart then the fun begins now it's about a full day to hook everything up it sort of looks like a patient in an operating room boy it sure is a good feeling when you get it all in there and you hit the starter button and she just goes right off it is absolutely a wonderful feeling after all that works you just fires right out it's good it's a good feeling the break-in starts with about an hour of just running the engine inspecting everything making sure there's no leaks and all of that kind of thing and just varying the speed and and I just have to get the temperatures in the engine let it run for a while play with you all pressure a little bit testy all system might even click a hundred pounds just make sure nothing blows and then it's time to start milking suppose this is our Dino it's a stuffs cartoon rotor Dino it's called a mystics to a webbing system the horsepower dialogue this is our dyno bench we have a hand throttle because of all the different hookups that we deal with dual screen display we have all the parameters in there it's really a nice easy way to control the engine Here I am I'm running it up on another pole and we just keep doing poles until about 10 folds after 10 poles is pretty much broken in from there on out it's all seeming then sometimes you can do them in five holes and sometimes it takes 25 minutes getting really dialed in we have to adjust tightening and carburation and all these kind of things right once I know that it's right this guy comes back off the dyno we assembled this one over in our body shop because we have a 2-ton jib crane over there it's a really nice way to do it I've got a load level or there and one guy can assemble these engines over there it's really a neat setup so back into the car and then it'll be back onto the road we also have a chassis dynamometer and borders on the chassis dyno that's pretty much how it all goes with the attack whatever we often look the same thanks for watching [Music] [Applause] you

Channel: A Road Less Traveled with Restore Cars

Views: 1,511,389

Rating: 4.8100958 out of 5

Keywords: Packard, V12 engine overhaul dyno dynam, V12, engine, Packard V12, v12 engine, engine restoration, engine restoration time lapse, engine restoration project, engine restoration additives, steam engine restoration, old engine restoration, classic cars

Id: 9BXYUjLJPdc

Length: 13min 6sec (786 seconds)

Published: Fri Mar 31 2017

Reddit Comments

[u/Lord_Waldemar]

They only do PCs now that they teamed up with Hewlett...

[u/Lockdown007]

Babbitt bearings jesus they take that to the old school method technology.

[u/69vuman]

Very interesting video.

[u/GlobalSouth]

I love the look of these old flathead engines.

[u/[deleted]]

Beautiful.

[u/r0bman99]

wow that tiny carb and craptastic intake/exhaust manifolds! I'm surprised the thing even runs.