Inlet Manifold Leak

[FatBoy]

Originally Posted by jhirasak

Have you checked to make sure that none of the manifold bolts are bottomed out before the gaskets are fully compressed? This can be easily done when the manifold is being test fitted to the engine without gaskets to check manifold gaps. It is just a precaution that could explain the cause of the stated problem.

Cheers,

John

Good point and worth checking, although I'm pretty confident that they all pull up on the manifold okay.

Thank you,
Paul

[RICK LAKE]

Fatboy You said you had the heads ported. This could be the problem. It very easy to grind too much out. If the intake was also match proted to the gasket opening, I will bet that there is not enough material to properly seal the ports OR the #1 port is crack and coolant is coming through the port wall. There is not alot of extra materail to grind away on FE heads. You might want, like others have said is pull the intake and heads and have them pressure tested. You are on the other side of the pond. Not sure who you would go to there. We have a couple of guys here that could do this here. Rick L.

[FatBoy]

Thank you for your consideration Rick.

The heads were CNC ported by Bill at SA, so it is probably less likely that the porting has broken through as it would be a problem on all of his ported heads I would have thought.
I'm going to take the manifold off and I'll have a good look down the ports and I'll report back if I find anything.

Thanks again,
Paul