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Discussion Starter #1
The water socket on the top of my water pump is leaking.

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What is the best way to tighten this down? The original O ring is long gone and tried another one from my stock. Is there a better way to seal this?
 

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Discussion Starter #3
I didn't know you could use sealant on the fitting.

I tightened it down as far as I wanted to go before I felt it would strip the aluminum housing and it is not leaking as much. I will pull it and reseal it. Maybe the O ring I am using is actually causing the leaking because it won't let the fitting seat correctly.

Thanks!
 

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The correct answer is of course to clean the surfaces and have a proper sized o-ring. But I don't like the way this socket is put together. The bolt seems to compress the o-ring in a slightly lopsided fashion. I'm sure it worked out just fine from the factory when everything was new.

A bit of RTV will do the job well and won't hurt anything. It's probably a good idea to use the grey stuff formulated for water pumps and thermostats.
 

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Discussion Starter #5
Before i put the fitting back in, i sanded the rust off then sprayed it with high engine heat paint to help keep the rust down.

I will look for an OEM o-ring for the fitting.
 
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