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Old 09-03-2006, 12:14 PM
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Eljaro Eljaro is offline
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Join Date: Jun 2003
Location: Palma de Mallorca, Spain, ESP
Cobra Make, Engine: Contemporary with 482 KC/SO, TKO600,IRS Jag/AMP, 3.54 Salisbury PL,
Posts: 582
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Default long intake manifold bolts

I took off the manifold yesterday because of the oil puddle I found in several intake ports, and some oil running toward the valve from the intake manifold gasket.
I cleaned the intake valves with all sorts of self made brushes and tools to get the sticky black deposits off and proceeded today to put everything back together.
I had recently received some new ARP bolts, which happened to be too long.
While measuring the correct lenth to cut them I noticed that all the bolts I had been using on the intake manifold were too long ( between 0.5mm and 2mm).
So no wonder the intake gasket was leaking; it had been torqued correctly but the intake was resting on some of the bolt tips and not on the gasket.
Now I know why I was allways using so much oil (even with the old Performer RPM intake) and why the gaskets came off allmost like new.
I now use some thick hardened washers which came with the Weber Manifold ( but which I did not use) and I hope all is well now.
You never stop learning.
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