Thoughts on using sealant for intake

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johndemar
Posts: 716
Joined: Sun Feb 24, 2008 11:12 am
Your car is a: 1976 Fiat 124 Spider
Location: Phoenix

Thoughts on using sealant for intake

Post by johndemar »

I have to replace the intake gasket because of a coolant leak from the center port and was wondering if a sealant would be of any benefit?
The problem was most likely caused from using a "new" replacement gasket that I purchased as a kit from Art Bayless in the early 80's :oops: The fact that the cardboard container from the kit was crumbling should have given me a clue to not use it, but it held up for a few years.

The intake and head are the original match and the surface was true when I put them together during the restoration.

I was thinking of using something like Permatex Hylomar Universal Blue. I only want to do this once.
76 Fiat 124 Spider
One owner since July 20, 1976
Amadio Motor, Jeannette, PA
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RoyBatty
Posts: 852
Joined: Sat Aug 28, 2010 11:44 pm
Your car is a: 1975 124 Spider - 1971 124 Sport Coupe
Location: Locust Grove, VA

Re: Thoughts on using sealant for intake

Post by RoyBatty »

I used RTV gasket material on both sides of my intakes when I intalled the twin IDF's and have no regrets in doing so.
Good luck
majicwrench

Re: Thoughts on using sealant for intake

Post by majicwrench »

Permatex RTV instructions state "not for use when in contact with gasoline"

RTV is gas soluable, and should not be used on intakes, carb base etc. It is the most popular product for people to spread all over everything.

When bolting a flat, machined surface to another flat, machined surface, w a gasket between, sealer should not be required, gasket alone should be fine. if you wish to seal around coolant port, go for it, but use a tiny bit of whatever you choose.
Keith
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