intake manifold gaskets (dual port heads)

KKV270 · Post by **KKV270** » Fri Mar 11, 2016 2:42 am

Hi.

I have noticed for a while that I have minor leaks via the manifold-head mating point....no matter how tight I try bolt the manifold down with the metal gasket in place. When the engine heats up, I end up loosing my idle (I believe the area expands creating a vaccum leak.

My question is, will paper gasket be a good be a good alternative? This mighty not get affected by heat.... What other remedies may be available?

Thanks.

hercdriver · Post by **hercdriver** » Fri Mar 11, 2016 6:48 am

I wouldn't think that paper could stand up to the heat. I'd try a new gasket and a thin film of high temp RTV

http://www.walmart.com/ip/16879904?wmls ... 48&veh=sem

KKV270 · Post by **KKV270** » Fri Mar 11, 2016 10:09 am

Hi her drive.
Thanks for the feedback. Question, is shelac a suitable substance to use?

KKV270 · Post by **KKV270** » Sat Mar 12, 2016 12:09 am

Hey, Hercdriver,

I remember I once was dealing with a similar issue... I was strongly adviced never to use silicon on the manifold/head joint (I think it was Bluebaron who mentioned this)... I have in time seen why...it weakens with time because of the petrol.

I wonder, does shelac react the same way with petrol?

KKV270 · Post by **KKV270** » Sun Mar 13, 2016 7:53 am

Hi.
I used the shellac as it is indicated resistant to petrol. The leak has so far been sealed. I pray it stays so.

Cheers guys.

Badman24 · Post by **Badman24** » Wed Apr 20, 2016 8:31 pm

Loctite 518