Thanks that is all good info regarding rebuilt motors. Apparently it stopped firing on all 5 at 277k. When opened to investigate, the connecting rod was 3/16 short, so I'm guessing it had a head gasket leak and hydrolocked or something. Anyway the top and bottom were rebuilt at a reputable shop as were the pump and turbo and transmission with all Mercedes parts.
I'm not sure I buy the "Mercedes crate motor" magic stuff. Any diesel truck engine rebuilder is going to be pretty competent at that, and there are plenty of other diesel motors out there doing comparable hours between rebuilds. Injection pumps: there is a bosch rebuilt 603 pump on my 606 right now, and it works very well. I certainly value my 123 more with a rebuilt head and new transmission. Even if people think it should have gone farther than 200k before doing that work, it is now at least 200k miles further from needing it again. Maybe 400k, like you guys say. But maybe that feeling is also just a function of having written the checks, and in any event it is farther than I am likely to ever drive it. On Aug 9, 2016 7:14 PM, "Curley McLain via Mercedes" <mercedes@okiebenz.com> wrote: > Neither engine nor pump should need to be "rebuilt" in under 400K > Trans.... Maybe @250 to 350k. (assuming oil changes as prescribed and OE > quality filters used (mann only for the 124 trans). > > I'd not buy a car with a "rebuilt" OM603, unless I discounted the cost of > the replacement engine and installation. Factory crate engine, as Curt > said, is a plus. The kleb car I had had a "rebuilt" IP (not from a dealer) > and never did trust that IP. A Bosch dealer can't get all parts nor specs > for calibration for a MB pump. According to Bosch, they are "MB only." > You have to get the rebuilt exchange, or new pump from the dealer. In > truth, a really good IP shop can replace elements, and if they have had > access to a known good pump, can determine the calibration, within reason. > I think they can't get parts for the governor, and may not be able to test > the governor. At least that USED to be the case... > > The first OM603 I had with 300k, I did a compression test, and all > cylinders were 425psi. That is the high side of the factory spec for a > new, broken in engine, or an engine in perfect shape. At 300k, you might > want to check chain stretch... > > > Max Dillon via Mercedes <mailto:mercedes@okiebenz.com> >> August 9, 2016 at 7:09 PM >> Indeed, usually a rebuilt engine will not last as long as an original >> engine, unless it was rebuilt by Mercedes-Benz. They are very difficult >> engines to rebuild correctly. I would take Kaleb's over your example every >> time. >> >> A rebuilt transmission is a bonus, and if the injection pump is rebuilt >> that is also a bonus. >> >> > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
