Topic: Anti Freeze
in Forum: C3 Cooling and Heating Systems
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Lifetime MemberKevin, any auto parts store should have the proper "O" ring. You do need to Vasolene it to keep it from binding when you swivel the neck housing. You can also get it from Summit, but it would cost more bucks. Here is Summit's gaskets for their swivel water neck: http://store.summitracing.com/partdetail.asp?autofilter=1&part=SUM%2D370002&
corvette440hp
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Kevin, here are the size dimensions for their "O" ring gasket: http://store.summitracing.com/partdetail.asp?part=SUM%2D370002&view=32&N=700
corvette440hp
DNV, Fireboss and I have all been through the chrome t-stat housing dilema and mine is the only one that has not leaked. There are 4 or 5 of them in my "junk" parts box in my shop. Don't know what it is. It seems as though they should work. We ended up changing both of thiers back to cast.
[QUOTE=KDADDY79]I'm thinking I'll give 440's "O" Ring suggestion a shot.
If it don't work, I'll put the stock one back on and let that be that.
Thanks fellas!
[/QUOTE] Really Kevin go for it
corvette440hp
Hey Larry (corvette440hp),
KDADDY79 2008-09-29 19:51:14
I finally had the time & weather on my side to do this little fix.
I got rid of the swivel thermo. housing and went with a chrome one that is solid.
I removed the O Ring from the groove in the housing. I put the Vaseline on both sides of it and put it back in the groove. Then I installed it.
I let it get hot and then cool down for about 2 hours. No leaks.
I drove it for about 20 minutes after dinner and saw no leaks after that short ride.
So far so good. Thanks for the advice!
Kevin
Kevin,
I had the same exact problem last week. Chrome thermo housing and "O" ring too ! The leak was driving me nuts. 
I got a new chrome one w/the "O" ring, changed the stat, 2 hoses, and drained and flushed the rad.
One thing I found, I had a 195 stat in the housing. Changed that into the 180 and everything is OK. 
Kevin
corvette440hp
Make sure that any pipe plugs that are in the manifold up front are good & tight, make sure there are no signs of leaking.
Dave
Lifetime Member #116
Dave's '82 
Hey DaveM,
I'll give that a look see tomorrow morning.
What I'm hoping for is a dry manifold after it cooled down all night.
It's lookin' good so far!
Gotta get a few minor things right so I can catch the tail end of the season.
in Forum: C3 Cooling and Heating Systems
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