Close
No start no compression left bank ,timing chain&valvetrain ok
1990 Mercedes-Benz 560SEL

No start no compression left bank ,timing chain&valvetrain ok

(1990 Mercedes-Benz 560SEL)
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
1 answer & 0 comments
Popular Answer
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.
Sign in to reply
No-Start Diagnosis
$88 - $111 Learn More
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.
Sign in to reply

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.