Wednesday, December 10, 2008

Water pumps

Well, a rebuilt pump did the trick for the coupe. Too bad I didn't beat the snow however: the driving season is over in Maine.

Here are pictures of the three kinds of water pumps that are out there. This is what an original looks like. Note the open casting with the packing nut and the two oil receptacles:
From Pontiac Pictures


This one has a grease fitting. If you have one, be sure to use water pump grease only, not chassis grease:
From Pontiac Pictures


And this one, reputedly the most reliable, has a sealed bearing:
From Pontiac Pictures


Arthur Gould does a great job of rebuilding them. I've concluded that it's much smarter to rebuilt one than buy a NOS pump.

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