I recently did a timing belt replacement, and did the water pump at the same time. Everything worked fine, but after about 10 miles, the water pump flange o-ring started leaking like crazy.
I thought it was on ok when I pushed the flange on, but now I can see it is hanging out of the groove a bit. Now I have to tear down the whole thing and start over.
Anybody know how I can prevent this from re-occuring? Do I need to lubricate it before pushing it on.????