Hmm. Yes, the valves were adjusted about 8 or 9 thousand miles ago when the new (used) engine was installed. And the engine has supposedly only about 120k mi. on it now. It is a nice peppy engine and starts quite easily. Oh, and I replaced all the glow plugs about 2.5k mi. ago. BTW car is 83 240D.
Continue reading on and help me solve this mystery - it may be related to these other conditions: The only other problem that I can cite (and may be related?) is that of a slight miss just after it starts. Every few seconds it misses. This goes on for the first 10 or 15 seconds, and mostly clears up if I give it a touch of throttle. And along with the missing is some unhealthy sounding knocking and pinging. Oh, and every once in a while when I start it, and these conditions are present, it smokes quite noticeably. Then the smoke stops after 10 or 20 seconds. If I throttle it at this time, it just makes more smoke. But this whole smoking business is the exception not the norm. Then when I do accelerate before the engine is operating temp., the knocking and pinging are still there. Lately, even when completely warm, it can be heard to ping under acceleration once in a while. I did ask the list about this a while ago, and the options presented included running some diesel purge, doing the Italian tuneup (I always get hungry when I see that), and the more troubling option that I may have bad injectors or cracked prechambers. I have not yet run diesel purge. But I do think that I get something approaching Italian on it on a fairly regular basis. That is if I understand the magnitude of romping required to qualify as a Nunzio. I understand that it is more about pushing it hard, say, up hills and when completely warmed up. The heat and load on the engine are more important than the mere revvs, yes? I do have an aversion to revving the engine high. Wish the thing came with a tachometer and I knew the redline. Yes, I know you supposedly cannot overrev a diesel except for by downshifting. Brian 83 240D On 7/11/07, LarryT <[EMAIL PROTECTED]> wrote: > It's possible only 2 or 3 cylinders are firing - due to bad glow plugs - and > once warmed up all start cylinders working as they should. But it;s a > strange situation - especially the manny tran - that 4 cyl is pretty simple. > > But the engine will die a long slow death gradually losing more and more > power and making it more and more difficult to start until one day it won't > start at all. You could have some problems that are not noticable when > warmed up. But hopefully its only the GP's. > > My 240D did that - started fine until one cold afternoon it would not start > anymore - had 2 broken pistons & a bunch of broken rings. > > Have you checked your valve adjustments lately? Should be adjusted every > 12k-15k miles. Out of adjustment valves can lead to a lossof power. > > Larry T (67 MGB, 74 911, 78 240D, 91 300D) > www.youroil.net for Oil Analysis and Weber Parts > Test Results http://members.rennlist.com/oil > PORSCHE POSTERS! youroil.net > Weber Carb Info http://members.rennlist.com/webercarbs > Porsche Road Test http://members.rennlist.com/roadtest/ > . > ----- Original Message ----- > From: "Zoltan Finks" <[EMAIL PROTECTED]> > To: "Mercedes Discussion List" <mercedes@okiebenz.com> > Sent: Tuesday, July 10, 2007 10:23 PM > Subject: [MBZ] Loss of power, shuddering upon cold takeoff (manual tranny) > > > > This should be an easy one: > > > > When the 240D is not warmed up yet, and I try to take off on a hill, I > > get this shuddering and it loses power. I am thinking it feels like > > the clutch is slipping (but I thought clutch slippage was a more > > smooth loss of power and resultant engine revving). > > > > Could it be that the engine is not warmed up enough to produce > > sufficient power for the task and is thus sort of giving up? > > > > I think I have a good clutch in there. Can a cold clutch act like this? > > > > Anyway, I'll stop theorizing and let the question stand. > > > > Brian > > 83 240D > > > > _______________________________________ > > 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 > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.5.476 / Virus Database: 269.10.2/891 - Release Date: 7/8/2007 > > 6:32 PM > > > > > > > _______________________________________ > 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 > _______________________________________ 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
