While doing a traditional compression test would not be possible it is possible to do a leakdown test which would tell you if the rings and valves are any good. I guess that is what I would do if I were in your shoes. You could even test for leakdown at various points in each piston's travel (something you can't do with a cam installed). I would test each cylinder at TDC, BDC, and at two points in between. If they all passed then that engine will be OK.
Leakdown will tell you more than a compression test anyway...if there is a problem you will know if it is in the top or bottom end instantly.
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Marty D.
2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz
Last edited by nhdoc; 03-08-2009 at 08:42 AM.
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