Hey Gang,

I have a OM617 that is knocking pretty well. I took it to the local Mercedes guys for a listen, and they think it is in the top end somewhere. They doubt that it would be the block.

It sounds to me like it is coming from around #1. I loosened each injector to see if the sound disappeared but to no avail. I have done the diesel purge, and added some Lubro High-Test.

It is more noticeable at idle when warm, and when revved with no load, quiets a bit. Revved with load is VERY noticeable.

Does this data help, or shall I post a vid?

Later,
Nater