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Old 06-01-2010, 11:52 AM   #5
SSDiv6
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Join Date: Feb 2003
Location: Glendale, Arizona
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Default Re: Intake manifold heat?

Quote:
Originally Posted by art leong View Post
Pulled the motor to check the bearings. didn't mess with the timing belt at all.
Timing light is in the trailer. I'll go get it on Tuesday and double check it but it starts easy and idles great.
As far as reversion goes. This is a different cam (much bigger) than last year. I haven't paid attention to the manifold heat this year. Each time out I've been heating the engine, to allow heat soaking. I'm finally going to a track without eyes. So I want to know what I can pick up with a cold intake.
Took a leakdown to see if I had some bent intake valves It was 3 to 5 percent (not bad for gasported pistons).
This is the motor that I had asked about the compression pressure before It is 300 pounds. I worried myself sick about it. But have just learned to live with it as a quirk with the 4 valve setup.
Art, I do not think your timing is off and if you have a reversion problem, it not not create heat. You need an isolator made of thicker material such as phenolic, Black Nylon 66 or similar high temperature thermoplastic. I have not seen your intake location, however, is the intake above the exhaust?
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