Water neck leak - Team Camaro Tech
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post #1 of 6 (permalink) Old Dec 13th, 02, 08:59 AM Thread Starter
 
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I have a O-ring type water neck that has a slow leak problem. I have already replaced it once and after I shut the car down it starts to leak, anyone have a solution to this problem without using a ton of silicone. Thanks, G
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post #2 of 6 (permalink) Old Dec 13th, 02, 09:53 AM
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Jim
 
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The only sure cure method I have found is a thermostat housing gasket from GM. It has a silicone "O" ring built in to the gasket. Just a couple of bucks. Don't know if you can use it with your housing?
Jim
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post #3 of 6 (permalink) Old Dec 13th, 02, 11:59 AM
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I always make sure that the two surfaces are absolutely flat, free of burrs, then butter hylomar gasket dressing on the intake and cinch the two together. Never had a leak in 20 years. Your o ring gasket must contact both flat surfaces.You can always go to the hardware store in look of a slightly fatter o ring as well. Done that too.

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post #4 of 6 (permalink) Old Dec 13th, 02, 04:59 PM
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get rid of the o-ring t-stat housing, and get a stock one off a car in the boneyard. it wil lbe cheap, and probably never leak. if you get one off a late model truck with efi- 87 or newer- it won't have the ugly thermostatic switches mounted on it, and be bolted on with 2 short bolts. i have header bolts holding mine on. wire brush it or polish it, and it will look pretty nice.

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post #5 of 6 (permalink) Old Dec 14th, 02, 02:17 AM
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Chris
 
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Novaderrik is dead-on....dump the O-ring housing.

I jerked around with this issue last summer. Put 2 of those things on and still leaked. Get one without the O-ring and you will be home free!

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post #6 of 6 (permalink) Old Dec 14th, 02, 12:15 PM
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Before you install it, work it back and forth on a piece of emery paper on a piece of glass (or flat, smooth bench top) and make sure the mating surface is flat. Fel-Pro makes a molded plastic gasket with silicone ribs molded into it that seals dry every time (without goop) and is re-usable many times - I've used them for years.

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JohnZ
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