• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

Gasket Sealer on Intake/Exhaust Manifold Gasket.

Share this page

B

BG 62AH

Senior Member
Country flag
Offline
Doing some winter project work. Pulled the intake and exhaust manifolds off and found that when a previous repair was made, the mechanic used gasket sealer on both sides of the intake/exhaust manifold gasket. Not under my ownership.

I was planning on reassembling with a new gasket, but have never used gasket sealer on my TR6 i/e manifold gaskets.

Doesn't seem to be a reason for it, any suggestions or opinions appreciated.

Thank you.
 
Bill--

It may not be necessary but it can't hurt. I use Ultra-copper for high-heat applications such as this.
 
Strictly speaking... I believe use of sealant on the manifold gasket is discouraged. However, on my Triumph engines I have used sealant on the manifold gaskets. That is because my Spitfire and GT6 have/had aftermarket headers that I could never dress flat.
 
BG 62AH said:
Doing some winter project work. Pulled the intake and exhaust manifolds off and found that when a previous repair was made, the mechanic used gasket sealer on both sides of the intake/exhaust manifold gasket. Not under my ownership.

I was planning on reassembling with a new gasket, but have never used gasket sealer on my TR6 i/e manifold gaskets.

Doesn't seem to be a reason for it, any suggestions or opinions appreciated.

Thank you.
Click to expand...

I use Locktite Copper Hi-Temp gasket spray https://www.amazon.com/Loctite-37583-Temperature-Adhesive-Sealant/dp/B003XZARRK on both the exhaust and intake manifold on my race motors. It makes a solid seal and allows for easy removal.
 
Guys, thank you. In reflection I like the idea of using a high temp sealer. Appreciated.
 
In the late '60s when I was taking a vo-tech auto mechanic class I remember specifically being told not to use gasket sealers on these type gaskets - the asbestos-type side bonds to the head and waffled metal side is supposed to allow a small amount of movement/slippage due to the differing expansion rates of the head and manifold. So, I have always installed them dry.
Doing a little quick research I found the Moss has developed their own gaskets for their supercharger kits and specifically say leave them dry.
Fel-Pro site also specifically says to install dry.
Not too sure it makes a huge difference but thought I'd throw it out there. I think you have been doing it right all along.
Dave
 
Back
Top