Dodged a bullet

Decided to rebuild my water pump as part of the major, and man was it a mess in there! I feel lucky to have not had a full on pump failure... there was nothing coming out of the weep holes, but as you will see, they were completely clogged with corrosion and oil/water/dirt etc. one of the bearings was mush, and the other one had broken the seal, but had not disintegrated yet... not sure if I can salvage the housing, but will have to see how well it cleans up. The seal looks like the standard one, but the ceramic ring that goes between seal and impeller is not something I can find in any of the drawings for 308/328? I am guessing it's the "uprated" version, but does anybody recognize it? Or know where to find it? I am gonna just go ahead and buy a new one, but am curious as to identity of the pump parts that are on there. Maybe I can rebuild and keep as a spare. Thanks!





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I realize the outer race is still in there, but the corrosion looks bad enough to maybe not worry about removing it

 

Seal and rings that I don't recognize

 

1. Hah

2. Not sure, it was replaced by the previous mechanic labeled as "uprated" on the invoice. It was done in 2003, so it's been a while. Only ~10k miles though. Maybe it's the one superformance sells, labeled as "uprated". Anybody take one of those apart yet?

 

Thanks waymar!

I think the "seats" that came off mine are more or less spacers? The pump seal is the bit with the spring in it, and I am assuming it does the majority of the sealing? The seats I have are metal of some kind with seals between each layer, I am not sure what those seals are or potentially where to get them. I do like the extra bearing style rebuild, might try to shorten spacer and add an extra bearing if I can figure out what that seat seal is. This may also be an incorrect rebuild from the last guy, so I may try to put the seat that is supposed to be in there, in there, and see how it all lines up. Very interesting

 

Thanks again, I already ordered a new pump as I am skeptical of the housing, but I will also order the replacement seal/ seat from Mac master. Thanks so much for the info.

Also, there is no alignment mark on my impeller. I think the back is different as well, but I have to go take a look, yours looks to have a raised portion in the center where the seat is attached.

 

The back of my impeller is not anywhere near as raised as yours, so I will need a different seat, or a different impeller. The shaft is not notched either.

 

Thanks for the heads up, that looked pretty gnarly! I am changing all water hose at the same time, and luckily all the hose connections are fine.