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 Water drip ater pump install

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lakeffect
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Join date : 2009-08-18
Location : Rochester NY 14621

PostSubject: Water drip ater pump install   Sun 17 Jul 2016 - 22:37

After installing the pump, hoses, shrouded fan and radiator unit, i filled the radiator to test for leaks. New gaskets were used on the pump.

There was immediately was a steady drip of water coming from the passenger side . It was coming down the lower hose. I re-tightened the clamp, and it had no effect. So the leak is from above that point. This is a static cold engine, cap off. no pressure in the system.

What are some of the possibilities causing the leak?. Where are the points I did not seal properly?


Dave
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jayoldschool

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PostSubject: Re: Water drip ater pump install   Mon 18 Jul 2016 - 17:48

Did you put sealer on the pump bolts? They go directly in the water jacket, and must be sealed.
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lakeffect
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PostSubject: Re: Water drip ater pump install   Mon 18 Jul 2016 - 22:20

I replaced the paper gaskets with rubbery ones and put used sealant on both the surfaces and bolts. No leaks to report.
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lamune

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PostSubject: Re: Water drip ater pump install   Mon 18 Jul 2016 - 23:00

Is it leaking out of the thermostat housing?
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lakeffect
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PostSubject: Re: Water drip ater pump install   Tue 19 Jul 2016 - 1:13

It was at the passenger side of the pump. Note prior post.

I have a custom chrome thermostat housing that has leaked in the past, Better quality gasket and sealant cured that.
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MalibuSSwagon



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PostSubject: Re: Water drip ater pump install   Tue 19 Jul 2016 - 9:13

When I install SBC water pumps I just use the paper gaskets with no sealant and have not had an issue.
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lakeffect
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PostSubject: Re: Water drip ater pump install   Tue 19 Jul 2016 - 9:25

I also wire brushed the surfaces to make sure nothing from the past was on them.

It's a 1974 400c
i block.
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