Sorry, more compression test questions - Saab 900 Bulletin Board - Saabnet.com
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Sorry, more compression test questions
Posted by JJ (more from JJ) on Fri, 27 Jun 2003 11:50:34
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I did a compression test on all 4 cylinders of my 85t. Per the instructions I received, I pulled the fuel pump fuse and pulled the coil wire off the distributor. I tested each cylinder leaving the other 3 spark plugs in place. I cranked the engine about 20 times. I forgot to open the throttle while cranking.
My numbers seem really good. I got about 170+/- 5psi in each cylinder. I'm happy with the consistency, but from reading other posts the numbers sound on the high side. It was about 80 deg. F when I did the test. Maybe that pushed the results up a bit. Do these numbers suggest carbon buildup inside the cylinders? Should I consider an engine cleaner?
Thanks a lot,
Chris
posted by 166.122.22...
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