Posted by Gordon Maney [208.126.206.119] on Tuesday, June 15, 2010 at 08:19:41 :
In Reply to: 318 poly question..... posted by Jason [71.35.248.16] on Tuesday, June 15, 2010 at 02:37:35 :
It is more likely you have some valve issues than it is being caused by rings. Some worn valve guides could amplify a problem.
There are exceptions to any rule, but uniformly low readings are likely rings, and irregular readings are likely valves — a combination of worn valve/seat surfaces and loose guides.
One more old guideline, about half of an oil consumption problem is rings and about half is guides.
Follow Ups: