49-53 Ford Flathead water pump rebuild.

well hello everybody um in this video i'm going to be rebuilding these 49 to 53 ford 8ba 8rt style water pumps you can see this one is a car water pump it's got a narrow belt pulley on it and the motor mount is different the truck pumps have this motor mount on it like this and it's got a wider belt 5 8 belt on it the reason why i have this one here is uh i had to learn basically how to take these apart and rebuild them so i broke this one i already rebuilt one of them and i broke this one down so to show you the breakdown process i grabbed a truck pump that i had extra and i'll go ahead and break this down it's the same process for both the car and the truck pumps but i just thought i'd show you the breakdown process on this you're going to need a press and a rebuild kit i looked around the internet for you know some instructions or something on how to do this and really even the manufacturers like i got this rebuild kit from dennis carpenter they don't have any instructions i emailed them for instructions and they never responded i called them well actually i called them first and they didn't know how to do it so they said oh just email you know info dennis carpenter or whatever it was i emailed him no response ever so basically there's no instructions anywhere i couldn't find anywhere on the internet youtube where they built the 49-53s so i thought i'd post a video maybe it'll help somebody else out um in the future the earlier pumps um youtube go to youtube mark's garage and he'll show you how to rebuild the earlier pumps but like i said these are 49 to 53. okay so when i was looking for instructions i did find an article on the flat spot and on the ford barn uh written by the late bill bentley and he showed pictures and wrote the instructions on how to do that do this i'm following those pretty much to a t um so the information that i'm providing to you is from the information of bill bentley one difference that you can tell with these is there's a snap ring inside here and let me zoom in all right if you can see right there right there and there are two little tabs that's a snap ring that goes inside a groove on the snout of the water pump you have to remove that so you can press the shaft forward out and forward so that's the first thing you got to do you don't actually have to remove it all the way you just have to get it out of that groove and loose um so sometimes it takes a couple of tries of course these things are all old and rusty all right i'll bring you back when i get that snap ring out of there all right i got the snap ring loose from the groove and i know that because when i turn this pulley the snap ring just goes round and round with the pulley and i can see it all the way around that it's out of the groove so next we'll go over to the press and i'll show you how i set it up okay so i went down the hardware store and grabbed a couple of long bolts and a couple of nuts to make some standoffs during this whole process what you don't want to do is press on this pulley the pulley breaks easily you can buy them after market but you just want to make sure that you don't put any type of force on the outside of this pulley because they will break so i got my standoffs on i'm gonna go ahead and set it in the press you can see that this pulley is really rusted in there so i don't know if it'll press out easily or not if it doesn't press out it's no big deal just take my cut off wheel and i'll cut the pulley off to press it out through but we'll see how it goes all right i have the water pump set up in the press surface is pretty level i've got a socket here that's a little bit smaller than the shaft [Music] and i will be pressing that down hopefully this impeller will come off if not i'll cut it off so all right looks like it's good that went well pulley is off [Music] now i need to just need to keep pressing the [Music] shaft out i need to rearrange my setup here there we go all right i have a socket here that is large enough to sit on this ring that goes around the pulley but small enough inside that the shaft can come through what we're going to do is we're going to set it on there like that we're gonna actually press the pulley farther into the shaft to break it loose and then we'll turn it over and press it out what that does is it just breaks the um contact of the shaft and the pulley so that when you spin it around there's not so much pressure on the pulley when we press it out that it could break the pulley [Music] all right here we go there we go once you hear it feel it break you're good see how the shaft is out farther now so now we can go ahead and flip it over i have a few two by fours set up i want to make sure i use a softer wood that'll help possibly from not breaking the pulley i cut some half circles in the two by fours so that it the shaft can go through but still support the pulley [Music] all right take my socket that's slightly smaller than the shaft of the pump pulley or the shaft now since it's already broken loose hopefully it will press out of there let's go [Music] so there we go [Music] and not broken okay now that the shafts out there's still a little the seal that's in there so i got another socket that is small enough to go in the hole here and hit the seal you don't want to go too big of a socket because there is another ring inside there that you don't want to break and that ring keeps the shaft from being pressed too far in so just get a socket that fits on the uh [Music] it should be a real easy press out no big deal there we go [Music] there's the old seal all right now to clean up the water pump okay now that i've shown you the disassembly of a pump i'm going to go ahead and reassemble the good pump i'll be using um first thing i want to do is show you that little snap ring inside if i can show you there's a ring right down inside there that keeps this shaft from pressing too far in so what i'm going to do is uh i got myself a little cross buff it's like a 600 grit kind of like a green pad or a red pad anyway i'm just going to run it in here clean up the areas where the shaft sits clean up the areas where the seal sits and then take a screwdriver and clean all that out all right so this is the new style seal um it looks like they have like a blue coating around here that is a sealant so when you press it in it seals this also is has like a spring to it okay on bill bentley's instructions he showed this picture which i'll post up here that the working height should be 4.421 to 0.429 between the top of the seal that the lip and this seal so i have my dial caliper set here to 4 0.425 which is kind of in the middle of the range you can see that this has to be squeezed in a little bit to get to that get to that dimension that they want so what i did i was afraid to press on this inner portion to try to press it on the shaft and into the water pump housing i did especially when you get to this portion and you're pressing this portion on so what i did is i found a socket that fit nice over that area okay and i made up some washers i had to drill the washers big enough to go over the shaft so that when i set the washers in there the distance between the washers and the height here is right a little bit higher than the range that they say but what it does is it presses both the inner portion and the outer portion in at the same time you can see i have a little bit of space right there when i start pressing this in that spring will go like that and then they'll both be pressing at the same time once this lip is pressed into the water pump housing then i can go ahead and press this inner portion to the specs that they have which is just a couple more thousands so that's how i did that all right so with that explanation we'll go back to the press and we'll pump in the sh or we'll press in the shaft put on the keeper ring press in the the seal impeller and pulley what we're going to do is we're going to press the the shaft in the long portion of the shaft goes in you will know that you're pressed in all the way for one that that inside ring will stop you and also the little groove right here you'll be able to see the groove all right i'm getting close so i'm looking at the top here looking for that groove for the snap ring i should also feel some pressure from it getting depressed everything meeting up on that inside okay i think that's it [Music] all right i'm gonna try to put my snap ring in here [Music] you know what i don't like that snap ring because in order if you ever had to get this off again that would be really hard to get out of there let me go find the stock one [Music] all right found the stock one go ahead and pull this back out you know i did look on the other pulley that i had already rebuilt and i think i probably could get that off of there if i had to but i think this one is much easier [Music] so all right all right in the kit they give you a brass slinger um i'm not sure why maybe it was the thing with the older seals but i did install it on the first one that i rebuilt first pump that i rebuilt but i just don't see what it does the new shafts have sealed bearings so you really don't need any slinger to protect the bearings so i'm not going to install that um in this one you can install it if you want on yours but i don't see what purpose it provides all right so now i have the my seal that on the shaft i have my socket with the washers [Music] all right and i have the water pump pretty level here on my press and what i have set up is i'm actually pressing on the shaft not on the water pump housing but on the shaft [Music] so [Music] so [Music] i'm trying to see and get a feel for the lip of that outer seal to get pressed onto the face if i press too far it could ruin the scene and it's really hard to see down in here [Music] [Music] [Music] okay it looks really close [Music] [Music] all right is it it is indeed pressed that outer seal is pressed to the face of the water pump housing so now i need to use a socket that fits over the shaft but on the face of the seal so i need to get my clearance that 0.421 to 0.429 [Music] it doesn't take much okay i'm at point four three four okay get closer okay 0.421 so that went quick all right so that's the seal now i need to press on the pulley when you press on these pulleys if you're doing the car pulleys there's two different size pulleys so make sure you press the right pulley onto the right side and to press the pulley on really just set the set the pulley with the face of it down then you can just press on the shaft until the shaft is flush with the face try to make it as level as possible and we should feel resistance when it's flush just check it [Music] okay still got a little ways to go there yes it's flush okay i should have cleaned up this area here first before pressing everything in i forgot about it [Music] so now with the impeller we're going to press it on and there is a measurement of the distance between the impeller blades and the face of here i believe it's 30 to 40 000 so i'm gonna have to go look that up real quick so next we'll go back to the press and press the impeller on all right i'm gonna set my impeller down here and my feeler gauge is set to uh 39 thousands the limit is 30 to 40 thousands [Music] so again you want to press on the on the shaft not on the pulley okay [Music] taking my feeler gauge and sliding it under there i can look down and see that it's getting closer [Music] [Music] that's a good 39. [Music] [Music] yep still a little loose i think i'm going to go down to 35 thousandths so all right there seems to be a little bit of flex in that uh impeller so i'm going to go to [Music] thirty-one [Music] all right i think we're there that's going okay 31 will go and a 35 won't so that's within the range spins nicely [Music] and that my friends is how you rebuild the 49 to ford flathead water pump as always thanks for watching

Channel: Aaron Dominguez

Views: 20,081

Keywords: Model A, Hot rod, traditional hot rod, 1929

Id: TacfAbAfqS4

Length: 29min 47sec (1787 seconds)

Published: Thu Apr 08 2021