Checking Intake Sealing
Thread Starter
Melting Slicks
Joined: Nov 2004
Posts: 2,311
Likes: 223
From: Temecula CA
Checking Intake Sealing
I've got a cast-iron intake (stock 327) that I suspect is not sealing. Oil pooling around manifold edge (bolts are sealed), and also oil film on face of spark plugs.
This is with a FelPro 1256 gasket and the bolts correctly torqued.
The problem was worse before I went to the 1256 gaskets. Now, with the 1256, much less oil pooling, oil stays cleaner because the exhaust crossover port was leaking, but still getting oil film on plug face and threads.
No idea how much material has been removed from the heads and deck over the years. These are 1965 vintage parts.
So, other than buying the check gage, what's the best way to see if there's a mismatch? TIA MIke.
This is with a FelPro 1256 gasket and the bolts correctly torqued.
The problem was worse before I went to the 1256 gaskets. Now, with the 1256, much less oil pooling, oil stays cleaner because the exhaust crossover port was leaking, but still getting oil film on plug face and threads.
No idea how much material has been removed from the heads and deck over the years. These are 1965 vintage parts.
So, other than buying the check gage, what's the best way to see if there's a mismatch? TIA MIke.
Last edited by Mike Geary; Nov 16, 2012 at 11:43 AM.
Le Mans Master
Joined: Nov 2008
Posts: 5,691
Likes: 12
From: columbus oh
I've got a cast-iron intake (stock 327) that I suspect is not sealing. Oil pooling around manifold edge (bolts are sealed), and also oil film on face of spark plugs.
This is with a FelPro 1256 gasket and the bolts correctly torqued.
The problem was worse before I went to the 1256 gaskets. Now, with the 1256, much less oil pooling, oil stays cleaner because the exhaust crossover port was leaking, but still getting oil film on plug face and threads.
No idea how much material has been removed from the heads and deck over the years. These are 1965 vintage parts.
So, other than buying the check gage, what's the best way to see if there's a mismatch? TIA MIke.
This is with a FelPro 1256 gasket and the bolts correctly torqued.
The problem was worse before I went to the 1256 gaskets. Now, with the 1256, much less oil pooling, oil stays cleaner because the exhaust crossover port was leaking, but still getting oil film on plug face and threads.
No idea how much material has been removed from the heads and deck over the years. These are 1965 vintage parts.
So, other than buying the check gage, what's the best way to see if there's a mismatch? TIA MIke.
remove carb and make a plate to bolt down in it's place on the intake with a hose fitting screwed into it
apply vacuum pump and check readings, this will tell you if the ports or gaskets are mis matched, if you are concerned about only an oil leak, that's a different story.....
