1988 560sel,no start, no compression left bank,right bank ok,timing chain and valve train operation ok,squirted oil in cyclinders leftbank side compression comes back,reinstall plugs & plugwires vehicle tries to start but does not,cyclinder leak test found no leaks
no start no compression left bank ,timing chain&valvetrain ok on 1990 Mercedes-Benz 560SEL
by toneymcclay in Compton, CA on May 15, 2011
ANSWER by dandd on May 15, 2011
If you squirt oil and there is compression, then there has to be leakage around the rings, which may not show up in a leak down test. Any time you have no compression, it has to be a mechanical issue, such as a bad head gasket, bad rings etc. Even if the timing chain was off, you would still get a little compression.
left bank side only