Blowing passenger side water pump gaskets - Team Camaro Tech
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post #1 of 9 (permalink) Old Jun 19th, 19, 05:40 PM Thread Starter
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Craig
 
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Blowing passenger side water pump gaskets

I have 383 abc with vintage air(no refrigerant yet) with March pulley system(so ccs rotation) Griffin custom fit radiator, Stewart stage 1 water pump, with 7 blade fan and clutch fan. Car will idle in garage for 30 minutes or drive through slow cruise traffic and never go over 180 degrees. Verified by checking ohms on sender and using instant read thermometer. Has 180 degree stat. After running for about 30 miles water will start leaking out of passenger side water pump gaskets. Between block and pump. Torn it apart 4 times same result. Tried Fel Pro gaskets only, then Fel Pro gaskets and silicone sealer same result. No issues with driver side also tested stat. Replaced probably 50 abc water pumps never an issue any ideas
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post #2 of 9 (permalink) Old Jun 20th, 19, 07:52 AM
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George
 
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Re: Blowing passenger side water pump gaskets

Did you check the mating surfaces of the pump with a straight edge? JMT
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post #3 of 9 (permalink) Old Jun 20th, 19, 07:59 AM
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George
 
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Re: Blowing passenger side water pump gaskets

Forgot to ask if you use thread sealer on mounting bolts?
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post #4 of 9 (permalink) Old Jun 20th, 19, 10:26 AM
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Re: Blowing passenger side water pump gaskets

Maybe a hairline crack in the WP

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post #5 of 9 (permalink) Old Jun 20th, 19, 04:00 PM
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Re: Blowing passenger side water pump gaskets

Check your bolt length and make sure it not bottoming out.
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Jeff


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post #6 of 9 (permalink) Old Jun 21st, 19, 03:44 PM Thread Starter
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Craig
 
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Yes coated threads on studs for water pump. Verified straight surfaces on block, water pump and March spacers for water pump. Also to ensure fasteners for water pump are not bottoming out. Did look more closely at water pump flanges per Vegas suggestion regarding hairline crack on pump flange. Did not see any issue there. Going to reassemble using thicker flange gaskets and plan to use permatex “tack” on both sides of gaskets that attach to March spacers and silicone sealer on block surface and water pump flanges. Thanks for the input.
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post #7 of 9 (permalink) Old Jun 22nd, 19, 08:12 AM
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Re: Blowing passenger side water pump gaskets

I use Permatex "water pump & thermostat" RTV. Put a skim coat on both sides of WP gaskets and use "Thread Sealer" on bolt threads
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post #8 of 9 (permalink) Old Sep 19th, 19, 06:07 AM
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Re: Blowing passenger side water pump gaskets

Quote:
Originally Posted by Agitator View Post
I have 383 abc with vintage air(no refrigerant yet) with March pulley system(so ccs rotation) Griffin custom fit radiator, Stewart stage 1 water pump, with 7 blade fan and clutch fan. Car will idle in garage for 30 minutes or drive through slow cruise traffic and never go over 180 degrees. Verified by checking ohms on sender and using instant read thermometer. Has 180 degree stat. After running for about 30 miles water will start leaking out of passenger side water pump gaskets. Between block and pump. Torn it apart 4 times same result. Tried Fel Pro gaskets only, then Fel Pro gaskets and silicone sealer same result. No issues with driver side also tested stat. Replaced probably 50 abc water pumps never an issue any ideas
Craig... Did you solve the leaking problem? I'm going to start assembling my serpentine setup and new water pump next week, was going to pick up some Fel Pro gaskets tomorrow, wondered if any kind of sealant was necessary with them, or just some sort of tacky stuff to just hold them in place. Typically, I would put anti-seize on the bolts, gotta find the torque specs as I think one side has a bottom out limit.-Mike
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post #9 of 9 (permalink) Old Sep 20th, 19, 07:37 PM Thread Starter
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Craig
 
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Re: Blowing passenger side water pump gaskets

Yes I believe I dis finally fix the problem. The March system spars that go between water pump and block were incorrectly machine on the passenger side for the water bypass hole. So they sent me a newer designed spacer for that side. Based on their recommendation I did not use sealant just Fel pro gaskets. I had water leaks on both sides. So I spoke with Stewart water pumps and they recommended I use a sealant. I ended up using Permatex water pump and thermostat gasket maker (#22071) a along with the gaskets. No problem all summer long. I believe my main problem was due to the incorrectly machined March spacer which they had revised very soon after I bought my system
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