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| Freek Extreme Veteran Date registered: Feb 2007 Location: Zululand South Africa Vehicle(s): 2000 290GDT, 1985 280GE, 83 300GD in process Posts: 364  | 290 GTD OM 602 Engine Killer Hi to all Ganatics I have eventually gotten around to report on my premature engine failure on my 2000 290GTD with 170 k km's on the clock. (discussed a while ago on the forum) The killer was a steel chip in the oil pump, which (it appears) has been there for a while and which eventually managed to get lodged between the gear and the casing on the suction side, resulting in loosening the press fit on the shaft from the sprocket. (the latter can now be turned by hand with gears standing still) The origin could not be determined up to now. This chip can be seen in the photos below if you look carefully where the gear point passes the casing. On the one photo it looks like a chip but it actually is a piece of steel (slightly triangular shaped) maybe 3to 4mm long and 2 mm on its widest. Judging by the serrated nature of the edge on casing it is clear that this piece of steel has been there for a while. I think it is significant that the chip was on the suction side. The oil pick-up strainer is in perfect condition with no sign of perforation. I have always changed the oil and filters myself and always decanted the oil from the pan back into the oil cans in which it was purchased and done so approximatgely 1500km before the failure, I always pay particular attention to look for metal chips in the filter and the last bit of sludge in the bottom of the pan. It was always clear. As far as i know the oil pump has not been opened before. Anybody else with a similar experience or ideas where such a chip would come from? I have eventually decided to install a new engine (602 983 again) and the vehicle is eventually going again, running very well except for one concern;- it has failed to start immediately (it always starts almost immediately) at three or four occasions over the last 2000km's but after a while it would start again? Any ideas what can be the reason for this? Battery is fine, cranks normally, engine is brand new - is there something preventing the dieselpump from pumping diesel? Looking forward to comments Regards Freek (290 GTD steel chip in oil pump.jpg) (290 GTD steel chip in oil pump 2.jpg) Attachments ----------------  290 GTD steel chip in oil pump.jpg (78KB - 11 downloads) 290 GTD steel chip in oil pump 2.jpg (76KB - 11 downloads) | |
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| AlanMcR Expert Date registered: Apr 2006 Location: US, CA, Los Altos Vehicle(s): G300DT E300DT 230SL Posts: 3500  | ||
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| Freek Extreme Veteran Date registered: Feb 2007 Location: Zululand South Africa Vehicle(s): 2000 290GDT, 1985 280GE, 83 300GD in process Posts: 364 | ||
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