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HELP - water pump leak- Thanks for suggestions 200

posted by  Aye Roll on  Fri Apr 23 10:24 CST 2004
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last visit: Tue Oct 14 21:08 CST 2014
[RELATED]

I doubt any product will stop this leak. The leak is from a misplaced rubber seal on the pipe end... it's not like a crack in a metal radiator.

It's just going to keep leaking. I don't like what most stop-leak products do to the cooling system. Mainly I think they gum up radiator passages and thermostats.

The best thing to do, and I just did it, is to buy the water pump seal kit ($3) and drain the system and try again.

One tip I offer people doing this: apply grease to the pipe o-ring and the top seal, so they slip right into place. This keeps them from getting rolled over or pushed to the side. I use silicone brake grease but lots of other things work. I've seen pro mechanics use Lithium grease too.

I use a pry bar against the alternator top to push the water pump up into place securely- it's a tight fit to get the other bolts in for certain. And I scrape the waterpump body and block sealing surfaces clean of old paper gasket material using a razor.

Good luck!
--
Rob Bareiss, New London CT ::: '87 244DL/M47- 229K, 88 744GLE- 218K, 82 245T-181K Also responsible for the care and feeding of: 88 745GLE, 231K, 87 244DL, 239K, 88 245DL, 246K






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