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1990 240 sedan with high compression readings 200 1990

posted by  Volvo From Heck on  Wed Aug 15 12:50 CST 2018
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last visit: Mon Oct 13 20:56 CST 2014
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Don't waste your time. Disconnecting the exhaust wont make a bit of difference.
You could buy or borrow a "scope" (I don't recall the correct name). With that you could remove spark plugs and take a look inside each cylinder - looking for carbon buildup in the piston tops and valves. I think if the cam was off a tooth one way or the other could effect compression - but I'd think that would effect running in a big way.
Does your motor use any oil? I would maybe do a cold vs hot test. -- Dave






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New 1990 240 sedan with high compression readings [200][1990]
posted by  AkkevinT  on Tue Aug 14 18:28 CST 2018 >


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