What is the compression reading on a 2.9L 9factory new engine)?
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04-09-2008, 07:43 PM
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What is the compression reading on a 2.9L 9factory new engine)?
Hello: New to the site but already have a question. I am doing a valve job on a 1987 Bronco II with a 2.9L engine. I took a compression test on all 6 cylinders before the breakout and want to know if I need to change the rings. All cyclinders were reading 170 to 175 PSI. I do not know the factory (new compression readings) on a 2.9L engine but would love to know these figures? Please let me know if anyone has a comment on this issue.
Dave
Happy Valley, Oregon
Dave
Happy Valley, Oregon
#2
04-09-2008, 08:52 PM
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