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While under the truck changing the diff fluid and crashbox fluid, I figured I'd snug up oil pan bolts and try to mitigate whatever leaks or seepage I could. Definitely something at the front and rear of the pan, but it isn't bad at all.
The one that concerns me is the oil pump itself. The bottom of the pump has a lot of oil on it, and I can't seem to find a gasket kit for the 226. Is is possible to take this bottom piece off and seal it up with some RTV? Or will pieces fall out of it when I removed this lower cover? I have to dig into the manual to see what it says about this.
It was worse than this, I just wiped it down before the pic...
Here's what it looks like inside the pump. My concern with replacing the gasket with RTV would be altering the space between the rotor parts and the end plate, changing the end play gap, and what that might do to the pump. Three of the 5 bolts go through the pump to hold it to the block, so removing them may also disturb the seal at the block end of the pump, so it may be best to change both gaskets instead of just the one. I can see the possibility of a snowball effect working on this, and something to be aware of. My 2c.
I completely agree that I don't want to increase the space between the end plate and the rotor and hadn't considered that at all. I wouldn't mind swapping out both gaskets but I'd have to find them first. I could cut my own, but that puts us back at the same concern of gasket thickness being incorrect. I think I may leave it alone for now and deal with the dripping. I'd swap it out, but the 226 oil pump seems to be very hard to find.
I think my concern may have been more about the possibility of decreasing the space between the plate and gears rather than increasing it. I'm guessing a film of RTV may be thinner than the gasket, and I'd hate to see the pump gears rub on the plate or possibly seize if the gap was too small.
Yeah, but I'd be concerned with tolerance changes in either direction, honestly. Either way, your "snowball" comment is likely spot on in this situation.
Hi Tony, I just rooted through my collection of spare 226 gaskets and couldn't find an oil pump one. But if you need any others let me know...I have doubles and triples of some for this engine.
I found that BEST brand makes a decent full engine gasket kit for the 226 truck engine, but it is about $200 now. Falcon Performance sells them on e-Bay.
Tom
Thanks for looking, Tom! I actually used the BEST oil pan kit when I did it.Good stuff and worth the price. I just don't need the whole kit just for the oil pump gasket.
Do you know if those gaskets can even be changed with the oil pump still on the block?
I'm not sure exactly what you are looking for but I found my original oil pump and the gasket where it mounts to the motor
Ed
near Philadelphia
Hey Ed, originally I was thinking of just taking the end plate off and using RTV to seal it up but concern grew with clearance issues between the bottom of the rotor and that plate. I was hoping to find repro gaskets (which I can't) and thought about cutting new ones from gasket material, but want to be sure I get the right thickness now.
Is there any way you could measure the thickness of the gasket (with calipers)? Is the original material cork? Any info on what you see for that original gasket would be great. I'm thinking I need to take it off the block and replace both gaskets there.
Tony, hard to measure thickness but I would say the same as a manila file folder, you speak of 'both' gaskets. I only have one on mine. If there was a second one it is lost to history.
Great resource! I just looked and they don't have, it but I did bookmark that site for future use. Doesn't even seem to be part of their rebuild kit, at least not the oil pump end plate gasket. But I don't need the whole kit....yet.
I'll likely trace the gaskets out on sheet material. Hopefully the old gaskets from the pump will give me the correct size and haven't been compressed too much over the last 72 years!
OK Tony, I thought you were just referring to the one to the block(6659). I just took the end plate off and 6619 looks even thinner, paper thin. Just a note if I remember right you need to move the engine to get that pump out. My pump was replaced when I had the engine rebuilt 25 years ago because the gear on the end was razor sharp.
Ed
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