The knock is very loud, more like a hammer blow hitting the block. Blow-by is visible with the aircleaner open. Exhaust smoke is blue. The contradicting stuff is: a bad bearing would hammer, but not cause blue smoke, a bad injector would quiet when the line is lossened, a broken vacuum pump would not produce vacuum. What would a bent rod do? This is a OM 617. They do not bend.
On 3/14/07, Peter Frederick <[EMAIL PROTECTED]> wrote:
Hmm, why did I think this was a 603? Pull the injectors and make sure the ball pins are all in place -- if one broke, it makes horrible noises and diesel smoke. Wandering oil pressure can indeed be bad main bearings, but they don't go that fast and make a deep knocking noise way down in the innards, quite muffled. Remember that you have a chain driven oil pump, and if the tensioner spring is broken, the chain slaps. However, excessive blowby means the rings are almost certainly gone. Peter _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
-- Hans Neureiter, Houston, TX '82 300SD, '95 E300D
