Dirt Daily. The Flatfender gets a Fuel Pump, and another, and another....

it's time for dirt daily today we are back in the shop working on the little flat Fender this little flat Fender is a 1946 Jeep cj2a it's a Wily's Jeep or Willis Jeep depending on how you pronounce it today's episode's brought to you by onx Offroad onx off-road is an app that you put on your phone and you sign up for subscription and this app gives you maps of off-road trails uh there's two different levels there's the basic level which is about $35 a year and then there's the elite program which is $100 a year if you sign up for the elite program you get discounts with a lot of aftermarket companies plus if you subscribe right now you can go to their website onx Offroad and sign up and it's like 50% off for I think it's just for the month of April so uh go sign up quickly um you can also use the 4 by Fred discount code that's in the description below but that does not get you as big a discount as is signing up right now so check that out all right today's project this little flat Fender I drug this thing home um I don't really know why I don't really need it I didn't need another project but I really dig it and it's been a lot of fun and the last time I worked on it I did a compression test a compression test is to try and figure out if each cylinder of the engine is making enough compression to run and three out of the four cylinders were pretty good they were all about 100 one of them was about 25 which which was not very good and I rather than dive into the engine I think what I want to do is try and move forward with trying to get the engine to run and in order to get the engine to run one of the things we definitely need is fuel so we're going to try and figure out does the fuel pump that is mounted on this engine work today um and to do that we're going to Jerry rig a few things up try to get some fuel uh to the fuel pump and then see if fuel comes out of the fuel pump and if it does that's good we can keep moving forward on making the Jeep run if it doesn't well we'll deal with that when we find out let's get to work so the flat Fender has a fuel pump on the side of the Block it's on the driver's side it's about halfway down the block on the front corner and it basically bolts on with two bolts and there's an arm that protrudes into the engine block and as the engine turns it pumps that arm up and down and a diaphragm moves and that brings uh fuel from the fuel tank which would normally sit underneath the driver's seat but this one's uh been pulled out it runs up a a metal line and then there's a hose that goes down to the pump and then the fuel comes out another hose that would run up to this metal line that goes into the carburetor um some of the hoses and lines are missing or disconnected so what I'm going to do is I'm going to basically just put a gas can here and we'll figure out if as the engine cranks over does it pull fuel from the gas can and then we'll actually run it back right back into the gas can and that'll just show us does it is it making any suction and will it pump the fuel back up to the carburetor so this is the fuel pump right here this is the inlet where it should be connected to this hard line and then this is the outlet so I want to basically Plum a hose to this Inlet and then this whole component right here is what pumps the fuel then the fuel should come out of this and run up to this line which is kind of flopping around here and that would feed the carburetor we just want to see if we hook a hose up to this and crank over the engine will it spit fuel out of that that'll tell us that it's actually pumping and doing its job I got a couple hoses here this is just qu in fuel hose I put two of these cheap inline plastic fuel filters on the hoses and I hooked them up to either side of the fuel why do I need these fuel filters now well mostly it's just so that I can see if fuel is Flowing uh I'm going to put both of these ends in this gas can and then I'm going to crank the engine over and the idea is that as these as the fuel pump is pumping if I see fuel going into one filter that tells me that it's sucking fuel the way it should and if I see fuel coming out the other filter filter that tells me that it is pumping the fuel all the way through as it should so we'll stick that down in one side stick this in the other side here and then all we really have to do is watch these two filters as we crank over the engine um if you missed the prior episode I put a little starter button over by the battery so I can just crank the engine over and hopefully the pump is good enough and it forms a a suction and we'll see fuel pumping into here and then coming back out the other side here's our Jerry can all right I think we're all set up batter's hooked up if I push this start button the engine should crank and we will see if it pulls any fuel down into that pump oh it might be getting just a little bit of fuel down in there there is a very small amount of fuel in this filter so we we're getting some sort of suction from the tank but there's nothing in the other side filter yet so I think what I want to do is try and get some fuel in this line down to that fuel pump maybe it's just so dry in there that nothing's working um so I'm going to try and figure out a way to siphon a little bit of fuel down this quarter inch line into the fuel pump maybe help prime it and then maybe that will start pumping fuel through let me see what I can find so I found this old syringe uh I think this was something I like a veterinarian would use to give animal some medicine and I'm going to see if I can reach this down inside here and get some fuel and basically force it down the fuel line into look at that look at that I got a full thing now [Music] we getting fuel down into the filter do a couple of these this is working way better than I expected it to if you don't have a fuel um syringe like I happen to come across go to your local like farm store looking like the veterinary sick animal department and oh look at that so now there is oh jeez I put enough fuel in that it must have filled up the pump because it's already at the outgoing filter so now the question is is there enough in there are we primed enough that we can get this thing to start pumping we have fuel on both sides now it's all the way through it doesn't necessarily mean that the pump is working that just means that the whole system is full of fuel this thing are super handy I'm going to keep this so we're going to watch those two filters and see if fuel moves through them as I crank it over it seems to be doing its job it seems to be pumping some fuel Let's uh we'll take this old container that used to hold dog snacks and we will pull this fuel line out of the can and put it in there so you can kind of see um and we'll see if fuel pumps out the end of that it does not seem to be pumping now I think this fuel pump was working when it was full of fuel that I forced into it but it doesn't it's not making enough suction or pumping enough pressure to Pump Fuel Up which tells me that we should pull the fuel pump off the side of the engine and figure out what's wrong with it here's our fuel pump and It Bolts onto the side of the block the rearward bolt is pretty easy to get to the front one is kind of Bur buried back inside there so I looked online and everybody said to get a/4 in Drive little halfin socket cuz then the extension will fit around the fuel pump so you kind of have to come down inside here and work your way around the fuel pump and if you have a flashlight you can actually see the bolt head way back inside there it's kind of hard to see but uh now the socket is on the bolt and now I can undo this I need a little qu inch drive ratchet but even just getting it Loose then I can reach inside there with just the extension and back that bolt out you can probably just come in with a wrench on the rearward one and break that one loose it's just that front bolt that's kind of tricky there it is there's our fuel pump you can see the gasket that goes between the fuel pump and the the engine block and then this is that arm that I was talking about this goes in there and as the engine turns this goes actually goes like this goes up and down it doesn't move a whole lot I'm going to take it all apart and we're going to see what's inside this thing not usually the best at planning ahead but I thought you know what but if I'm going to tear this fuel pump apart I should see if my local auto part store has a rebuild kit I actually looked online and there are rebuild kits for these fuel pumps available so I went down to my local auto parts store actually it's kind of lucky I live in a little town that has about five different auto part stores I probably have five auto part stores within like a 2 or 3 minute drive and I looked online and I saw that there was a rebuild kit available for this and I was like well rather than order one I'll just run around my local little parts yards and I went into the first one Napa and I talked to my buddy over there and he said no we don't have that but but believe it or not we have a brand new pump they had a brand new pump on the Shelf I mean I don't know if it's brand new or remanufactured but look at that so um I'm going to put this one on full disclosure but I want to open this old one up and find out what's inside of it this old one is definitely heavier than the new one so I don't know what that means I don't know if there's different parts inside I'm not going to open the new one because I don't really want to open up a sealed up part um and maybe have it not work but I am going to put that one on the Jeep but I want to open this just to kind of see what's inside and how it works so um and that new pump was definitely more than a rebuild kit um to start there's a bunch of bolts around or little screws six of them around the outside so I'm going to take those off and there's also some sort of Bolt hex bolt on the top here that removes this top cover I assume there's some sort of diaphragm inside here that moves up and down and and there's probably some rubber parts that are old so that's a little scungy there's a little bit of rust in there and this piece um it looks like it's plastic or Rubber and it is cracked on the edge but the inside of it still looks pretty good oh there we go kind of being gentle as I take this apart so that oh yeah look at all that garbage in there there's all types of crust maybe that's why this one feels heavier it's cuz it's just packed full of Rusty junk I don't know what that is but I'm pretty sure that's not what you want yeah that is probably why it doesn't work um cuz there's a lot of corrosion in here a that is a mess so what do we think that is that's down in there fuel like old fuel or some sort of water that got in there um as I'm taking these last two out the two halves are trying to come apart so that tells me there's some sort of spring down in there so I'm trying to hold everything together all of these screws look to be the same length so they look like they're interchangeable oh yeah there's lots of rust and junk in here so this side here would have been our Inlet and this side would have been the outlet and it looks like there are two sort of check valves so fuel would get pulled in through a check valve and then pushed out through another check valve and then that seems like that would probably have filled up with fuel and then been pushed out the other side so there's a lot of garbage down in here oh there is also a hole in the body of the pump right here see that little hole right there I don't know if that is supposed to be there like is it some sort of bleed back so that as the engine's pumping it doesn't um over pressurize or is that just from years of corrosion it's kind of rotted through I'm leaning towards it rotted through which is probably another reason why this thing is not building pressure gosh this is garbage look at how much garbage is down in there there you can see that little hole right there so there you can see how this works this thing moves up and down and it pumps that diaphragm and that makes kind of like a plunger action which is makes a a vacuum this thing was sitting on here so as it's plunging up and down the fuel is getting pulled in and down and then pushed back back up and out and then there's two little check valves so if you look right here you can see this black portion of the valve is closed but you can push against it so as the fuel was getting pushed in or pushed through it would it would open and then it would stop and that would pump the fuel but you can obviously buy more of these um my Napa had not one but two of them it had another one on the shelf and so we're going to have a bright shiny new fuel pump to put on the side of this engine and hopefully get the thing to run I don't understand why my uh auto part store has this I wonder if it's used on something else besides just an old willly flat Fender I would assume it does um but if you're looking for one it's part b0011 P check this out this is another fuel pump I was going through a box of stuff that a buddy of mine gave me when some of it was old jeep stuff and this was a fuel pump now you can see the difference between this fuel pump and the one that I took off my flat Fender this has this kind of globe up here this glass bowl and what you can do is you remove this screw you loosen it up and this arm Falls away and then this lifts off and the idea here is that fuel would come in this hole here and go up and then as it goes up it would be inside this glass globe and if there's and then there's a screen on the top and the fuel has to go through that screen to go down inside to get pumped out to go up to the carb so when you have this on you can actually see if there's sediment in there so maybe there wasn't n a fuel filter in line from the tank but the idea was that it would come into this pump and whether there was rust or dirt whatever gotten in the fuel and then it would settle down inside the pump here instead of going inside the pump then you could in the field open this up remove this globe clean out all of that dirt we probably want that little piece and this actually is solid there's no hole in there so when that's pressed down on there there um it's sealing with this o-ring or this washer that one actually looks like it's homemade but that is another type of fuel pump so I looked online and there are rebuild kits available for both of these you do need to know which type of pump you have do you have the one with the sediment bowl or do you have the one with the metal top uh I kind of think that the sediment bowl would probably be the better option because it is actually working as a filter and you can kind of see all the junk that's falling inside there and open it up and clean it where this one which is kind of what we're replacing uh with an identical new version has doesn't have that sediment bowl up there and so you're going to want some sort of filter beforehand um I guess you could still it would still might collect inside there which is not really ideal you want to have a filter so that if there's there's junk in your fuel tank or in the lines it gets caught up before it gets into the fuel pump and before you pump it up into the carburator but for now we're just going to put this in and hook it up and see if we can get fuel pumping and then we'll be that much closer to getting a little Jeep to run I think we're ready to test the new fuel pump is the fuel pump is mounted on the side of the engine this line running here goes into this gas can and then this line coming out of the fuel pump which would normally go to the carburetor uh we're just having a dump into this little plastic tub so we can see if gas is coming through so let's come over here this is my impromptu start button and when I push that the fuel filter right there should start filling up with fuel pressing the button H why are we not getting fuel hm what's our problem ran into a little speed bump last night when I was cranking this over the new fuel pump is not pumping fuel so this hose that come comes out of the fuel pump was not nothing was coming out of it I even did the same trick I did before where I primed it I filled this little syringe up with fuel and I forced it down the hose um and the fuel is sitting in the filter going to the fuel pump but when I crank over the engine the fuel pump does not pump so I got online I talked to a friend of mine who kind of restores and works on these old Jeeps and he was like the problem is is that all these new fuel pumps are junk like they're just not very good and he says that the part that's a problem is like the bottom doesn't seem to be rigid enough or it doesn't seem to like ride on the cam very well everybody thinks that the cams are worn out but he said it's probably these arms are a little bit different just a little bit and it doesn't seem to move up and down enough to Pump Fuel so I'm going to try a little trick I'm going to take the lower half of the old fuel pump which is still pretty rigid and hopefully this diaphrag is still in good enough shape and I'm going to take the upper half of the new fuel pump which I'm hoping is identical it should be and it will replace this kind of rusty crusty one that was on the old pump so we'll combine the top half of the new pump and the bottom half of the old pump and hopefully we'll have enough kind of pressure on the cam that it will pump that diaphragm hopefully the diaphragm is still good enough hopefully all the holes line up and seal up perfectly and then we will have a working fuel pump I could just take this old this new fuel pump off and take it back to the auto part store and be like this one's junk give me a different one but my buddy is like it's probably going to be the same problem cuz it's just kind of a problem with these new like auto part store uh fuel pumps they're just not very good there is some places online that he recommends um I'd have to look it up in fact I'll put it in the description below where he recommended to get a fuel pump he just said the ones that you get had like all the auto part soures it's not just Napa where I got mine he said just about every one that he's run across is kind of wonky um whether it's the engines are worn and the Cam's a little bit tired or the arm is not as rigid like you can see on here there's a little bit of wear and he's like that's where it needs to ride and work and if it's not doing that then you're going to have this problem so I'm going to take the brand new fuel pump back off disassemble it which I wasn't planning on doing but I'm going to do it uh hopefully it'll bolt right on here and we can reassemble everything back into the Jeep and have a working fuel pump yay situation normal here is here is our new pump here is the bottom half of our old pump what we're going to try and do is remove these six bolts I'm not even going to take the hoses off and hopefully everything will switch right over I assume there's going to be some gasoline in here I turned it over and tried to drain it all back out these new Fasteners and old Fasteners seem to be the same they look like they thread into yeah so that's good if we need to we can reuse the old bolts but it looks like all these new bolts will be able to be reused this is kind of sort of semi spring loaded so I'm sort of holding it all together as I remove the Fasteners okay um it shouldn't need this this top piece removed but need to remove it anyways and see everything in there looks fine why is this not coming apart ah ah it is making a Giant Gasoline mess all over my shirt I feel like this gasket the diaphragm is kind of almost glued together so I'm going to come in here there it goes there it goes look at that so if you notice when this arm when that diaphragm is all the way down it's kind of hard to tell but when it's all the way down this arm is has not gone above the top of that this one and that goes all the way down that arm has to be above that Center Line so it's like the length on the diaphragm arm like the rod that's down inside here is too long and so it's not getting enough pumping so we are going to use this one and hopefully this diaphragm is in good enough shape it it's a little crusty around it but it doesn't look like it has any tears in it so kind of using a little bit of hopes and dreams to make this work looks like all the bolt holes line up perfectly and are going right back together I feel good about this I think this is going to be our fix right here [Applause] [Music] all right that sounds like how we want it to sound this guy goes here then this goes here like when you eyeball them side by side at the bottom of their stroke it looks to be about the same the problem is when you run this up to the top or this one up to the top like it needs to move a lot farther before it even engages the diaphragm and then before it'll start actually pumping up and down and I think that's the issue it's almost like it's that Rod inside there is either too long or this arm could be thicker uh that was one idea I talked to a friend of mine he was like if you weld it on here you could put like a bead and then that would thicken that up and it would engage that diaphragm sooner which would have been a good fix too um but I'm kind of banking on this being a better solution so there we have it the top half of the new pump the bottom half of the old pump hopefully that arm will get us the leverage that we need on the diaphragm inside there hopefully the diaphragm is still in good shape it looked good I didn't see any holes but you never know um what's we're going to bolt this back in put some fuel back in this guy and we're going to make this thing Pump Fuel come on positive waves man positive waves new fuel pump get out of here birds get out of here yeah I got the fuel pump on the new old half of each fuel pump on I'm going to jeez the birds in the shop are really loud today I'm going to put this fuel line in the fuel tank this is the feed line I'm not going to prime it just yet I kind of want to see if it makes enough suction without having to prime it um so I think we are ready to try this out so this should fill up with fuel when that starts pumping and then this should spit out fuel uh once this is all cranking over so I think the batter is charged all right cross your fingers yes there's fuel in that filter that's what we want this filter here is going to dump fuel into this container and it's pulling fuel out of the fuel can there's fuel in that filter that's good that means it's working let's crank it some more watch right there we fixed something else on the flat Fender the fuel pump was a problem and we fixed it we didn't really do it the way I was planning on it cuz I thought I was just going to bolt on a nice shiny new one but now I have half of a nice shiny new one and half of an old one but the two parts that I have seem to be working and doing their job we are getting fuel the starter sounds terrible this engine is getting it's not cranking over the way it should so whether that is the starter solenoid or the starter itself um something there is not happy which is not ideal because I thought we were past that project but that seems to be the way this Project's going you take two steps forward and you have to take a few backwards in order to go forwards again um in case you're wondering yes the jeep does have oil pressure when I crank it over but it's also draining leaking out oil about as fast as I can put it in uh so there's definitely a problem I think it might just be the drain plug gasket o-ring on the drain plug so that might be an easy fix but I shouldn't say that because everything that I thought would be an easy fix on this Jeep so far has not been an easy fix but uh we're one step closer to making it run so I'm pretty happy with that um that about wraps up this dirt daily don't forget to go to onx off-road and sign up for the onx off-road app if you are interested in an app that helps you find off-road trails that you can take your flat Fender Wheeling on if it ever leaves the shop all right that's it we'll see you guys next time is it a win I guess it's a win gosh that did not go as planned never does [Music]

Channel: 4xFredWilliams

Views: 13,797

Keywords: jeep, 4xfred, fred williams, 4xfred williams, dirt daily, dirt head, fuel pump, willys jeep fuel pump, dirt every day

Id: NEzTJqR4n4g

Length: 38min 29sec (2309 seconds)

Published: Sun Apr 28 2024