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W124/OM602 Oil Pump Failure...
So I'm driving to school this morning at about 60mph when I start hearing what sounds from inside like cardboard being slapped in time with the RPMs. When I look down and see that my oil pressure gauge is at 0, I turned off the engine and coasted off the next exit into a parking lot.
I checked it out as best I could in the darkness of 5:45am and didn't see a leak, so I figured it had to be something internal. I turned it over, and heard squealing.. [I never knew a sound could hurt like that..] I had it towed to my shop where the oil pump chain was later removed from the pan by my awesome mechanic. At this point, the parts needed to replace the oil pump are on order and should be in on Tuesday. I know that right now I'm on the razor-thin edge of the situation where it could go either way: once the bearings are soaked with oil, all will be right with the world... or.. it won't. I'm trying hard to be optimistic as I've only had the car for 4 months, and I'm hoping that my OM602 proves to be bullet proof enough to survive this. However, I'd like to see if anyone out there has survived this. If not, what are my options as far as replacement/scrap-age goes? I spent the past 2 years trying to keep an old Diesel Jetta alive, and it's an experience I really don't have the time nor funds to to repeat. I'm hoping for the best, but could use some encouraging stories/advice. -ixos |
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Ah, I read that one today.. I wasn't sure where it had come from in my earlier search thanks, that does give me some hope!
-chris |
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Diesels dont like running with no oil. Your indi should be removing a rod bearing or 2 to inspect the crank.
Best have more than just your fingers crossed!!! At least you didnt hear the typical rattle & then bang!! Many of us will be very interested to hear how it goes, A pic or 2 of the bearings would be a great contribution to us. GOOD LUCK !!!
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Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
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I HATE that I "Know" That Sound.
"Metallic"
(BUT LIKE Metallic Fingernails scraping across a Titanium blackboard). SCARY! I Pray I'm wrong,BUT I believe you've spun at least one Bearing (Probably a Rod) You and your Indy need to look @ ALL the Rod and Main Bearings AND the Crankshaft Bearing Surfaces. Take the Oil filter out and cut it open...Those little Metallic parts in the Bypass filter element... were not put there by the manufacturer. If you've got Metal in the Oil Filter you'll have to "Flush" back down the galleries and clean them all. Oh,Man O'Man....(Mumbles)
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'84 300SD sold 124.128 |
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CI is probably correct.
The squeal when cranking usually means that you've spun a bearing, two halves are stacked in a rod-cap. Probably very repairable, but the bearing spins when it seizes to the crank journal and is pulled/forced out of position. Once the (seize) weld is broken, you have some damage to the crank journal. It might be minor enough to be polished and then new bearings installed, oil journals flushed, but that requires crank removal which I expect to be more labor than the car is likely worth. Drop the caps, check it out, hopefully I and CI are wrong.
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Gone to the dark side - Jeff |
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I'll talk to my guy about taking a look at a couple of them.. if they're going to have the pan off to install the new oil pump, they're right there anyway.
I remain hopeful, but the long weekend with a local weather shutdown has given me a lot of time to think too hard. Thanks for the tips. |
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I pulled the plug today on the service effort on this car around noon. I stopped by the shop to find the pan off and a sizable pile of metal shavings in the bottom of it. I peered up into the cavernous crankshaft area to see one cap removed, showing a heavily scored and rough crank surface, a filled oil channel, and other various bearings seemingly shredded within their races.
I had this W124 for 4.5 months and 8k miles. I'm pretty disappointed, I hadn't even hit 300k on the odometer yet! However, now that the second german diesel car I've had has attempted to break me, I'm going back to good ole unleaded. |
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That is surprising, usually the 602's are quite durable. What was the maintenance history/oil change history on the car like? Might have been abused....
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
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Failures happen. Shouldn't have as it's still under 300k miles, but they happen. Sorry it was yours.
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Gone to the dark side - Jeff |
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Stuff like this makes me paranoid.....I sure hope my 617 has another 100k+ left in it........I want to have one of the 500k engines.
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
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Sorry about your Engine.
ixos,
A nice used engine?
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'84 300SD sold 124.128 Last edited by compress ignite; 02-02-2010 at 03:50 PM. |
#13
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That's exactly what happened to me on Christmas day. My 1995 w124. No warning, just sudden clattering, and then it died. Loud scraping sound when turning over. Except mine never lost oil pressure. My oil was dirty (7500 miles) but it was Mobil synthetic, and the crankcase was full--that shouldn't have caused a catastrophic failure. I'm going to pull the engine and drop the pan. If the crank is repairable I'm going to install new Kolbenschmidt rod & crank bearings, new rod & cap bolts, and clean the oil galleries, & put it back together. Might service the head, rings, & timing chain while I'm at it.
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#14
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I don`t know if the 602 oil pump has the plastic chain tentioner like the 617.952 or not. It`s the little curved plastic thing that hangs off a shaft that pushes on the chain.
We had the lower pan off one time checking something else, and noticed there was a crack on both sides of the tentioner where it fits on the shaft. there was about 1/8 to 3/16 inch still holding on either side. a little longer and it would have broke off. This could have been the start of the OP oil pump disaster. something to check for everyone. timing chains are always the big topic, and the little oil pump chain is not thought of much. out of sight, out of mind. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
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