Just wondering what the cylinder compression should be for a '96 turbo 850. I checked them at (from left to right looking at motor) +/- 150, 150, 125, 125, and did not get to check last one. The significant difference between the cylinders worries me. Might be technique i usedor real engine issue. When i checked them i pulled all 5 plugs out and checked one at a time turining the engine for about 5 secs each. The engine seems to run great, i was just curious. Is this something that should concern me..should i sell the car or can i expect to still get another 150k out of it. Any help would be appreciated. Thanks!!!

 

Those numbers really don't worry me at all. They are still pretty good overall.
You might want to run a good valve cleaner through it and see if the lower ones come up a little the valve might be dirty and not sealing all the way.

 

I was always taught that ideally you want the numbers to be within about 10-12% of each other. That said, I too think you are in good shape, and the valve cleaner is a really good suggestion to bring the lower ones up.

 

thats good to hear because i really dont want to sell it and start the process of looking for another. do you guys have any suggestions for good valve cleaners? thanks for all the help!!

 

Seafoam seems to work good. I also use one Molypro or something like that it warks awesome.