| Aluminum Intake and Sucking Oil [message #110864] |
Wed, 05 January 2011 00:52  |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
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Just put on a Rockwell aluminum intake
In 600 miles I used 8 quarts of oil. I normally use about one in a thousand. I pulled plugs and 6 is black with oil and 8 doesn't look too healthy. Oil shows no sign of water, but will get changed anyway.
When we installed we sighted down the ports with a mirror and flashlight. Looked pretty good to us. The leaking side was "soft" when torquing; in other words it took more swings to bring to torque at each of the torque levels. The other side moved quickly. We went to 45 lbs. No blockoff plates as the manifold is blocked. I have no engine history so cannot answer questions about milling of heads but I doubt there was any fancy work. It is pretty plain.
If air and oil can be sucked in by just a few lbs of vacuum, I am thinking that the exhaust crossover port could easily blow out the gasket into the valley.
Question:
Do I put in block-off plates or not? I know I could have the heads welded, get aluminum heads, etc... not going to happen. Please give me your techniques for putting on the Rockwell aluminum intake.
Thanks in advance
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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