I'm going to look at a OM 606 ( year unknown ) today. The owner claims that the oil pump chain came off and the engine computer shut the motor down before damage occurred.

Is this shutdown likely to occur? I don't think gas engines of the same era shut down.

No idea if it is a turbo motor, they say the inj pump is still there. For the asking price it is worth the risk.

Thanks

????

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Greg
2012 S350 BlueTEC 4Matic
2007 ML 320 CDI
2007 Leisure Travel Serenity
2006 Sprinter 432k
2005 E320 CDI
1998 SLK230 (teal)
1998 SLK230 (silver)
1996 E300D 99k, 30k on WVO
Previous:
1983 240D, on WVO
1982 300D, on WVO
1983 300CD, on WVO
1986 300SDL 237k, 25k on WVO (Deerslayer)
1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix
1983 380 SEC w/603 diesel, 8k on WVO
1996 E300D 351k, 177k on WVO

Never heard of an auto shut down for low pressure. Doubtful in my mind.

I know it doesn't shut down when the low oil light comes on......it triggers when down 2 liters.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Got more info.

Apparently motor came from a MB dealers pile, was " running " when pulled but had no oil pressure. ~100 K miles.

Non turbo makes it pre 97 (?)

It was going to be repaired for a Jeep project but owner is moving. Guy seems like a car ish guy.

[QUOTE=97 SL320;3312145]

Non turbo makes it pre 97 (?)

QUOTE]

95 = 606.910
96/97 = 606.912

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Going to look at engine tomorrow AM, guy is going to hold it since he can't make it happen today.

I called on that engine and got the same story. Supposedly came out of a '95 124. I don't believe the engine will auto-shutdown either, but a good price for a spare block, head, etc.

Those years have nothing in the way of auto-shutdown. The '95 W124 at least has an oil pressure gauge but the '96-97 W210s do not. There isn't even a low oil pressure light although there is a low oil level switch in the oil pan and a corresponding warning in the cluster. Given the risk, I wouldn't pay very much for it.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

My 1995 would shut down due to excess pressure from the blocked diesel cat. Something in the pump is pushed due to excess crankcase pressure.

In your case, if the oil pump is dead - I can pretty much assume the engine is a goner, the auto shutdown story may have been a siezure or extreme blowby from broken engine parts causing the pump rack to cut fuel.

In either case - if the oil pump is confirmed to be dead - that engine is a boat anchor.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Boat anchor. I wouldn't even buy it for the block or head. You don't have to worry about heads on the 606s like it's previous predecessor. Unless severely overheated, in that case you can do that to any engine with the same result of damage. Hopefully no one buys it.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

What does that have do with honesty?

He is moving so He is not going to have to deal with you later.

More then a few Members of the various Mercedes Forums have bought Engines that the Seller was overly optimistic about.

If this was due to ignorance on the Sellers Part or outright dishonesty or a combination of both will never be determined.

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84 300D, 82 Volvo 244Gl Diesel

Yes, the crankcase pressure pushes the Vacuum Shutoff Valve/Servo in the direction that can shut the Engine off if the crankcase pressure is high enough.
I don't recommend doing this but I covered the Breather Tubing Hole on MY Valve cover with My thumb and waited until the Engine started to have symptoms of shutting down so I know that can be a cause.

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84 300D, 82 Volvo 244Gl Diesel

Please quote the post where I say the seller sounding like a car ish guy = honesty.

A car ish guy has a better chance of offering coherent answers to my questions than someone that just found an engine in the basement. He is billing it as having thrown the oil pump chain and not as a perfect motor. Please quote my past post where I say he is doing otherwise.

As for buying engines, I've been in and around the car business since I was 12 ( and fixing small engines since 10 ) so I know exactly what I'm looking at. My original question was if the car had an auto shutdown.

When dealing with a now broken engine, a sudden loss of oil pressure is preferable to running low on oil level / pressure. When oil pressure is low / bubbly, parts start to rub together causing excessive wear but there is just enough oil to keep them from seizing.

When oil pressure is suddenly lost, the gauge will drop / oil light on / check gauges light on giving the driver at least some warning and reason to stop.

If the driver does not stop, connecting rod bearings are usually the first to suffer. Run the engine long enough, the rod bearings will melt and grab the crank but little else will be damaged except maybe main bearings. Pistons will usually survive, as will the timing chain , cam journals, valve stems.

. . . . And the crankshaft. When oil pressure is lost, bearing material melts and is transferred from the bearing shell to the journal effectively gluing the rod to the crank. Take the engine apart, remove the crank, flake off the bearing material, send crank for machine shop for a polish and diameter check. Many times the crank is undamaged or at worst needs a first undersize regrind and maybe a rod resized. I've fixed more than a few engines that had a sudden loss of oil pressure.

I say the head has some value, this engine is notorious for the glow plugs breaking off in the head.

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Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC

I agree with your last paragraph - you can surely rebuild it given the motive.

For oil pressure alert and this engine - I can relate you my car.

my car has no oil pressure warning lamp, it has an oil pressure gauge though which is electric - It was dead for about 8 or 9 months before I replaced the sensor which is a painful job.

The only warning lamp you get for oil in this car is low oil level.

With your scenario - you have a 50% chance of the the engine being OK, i.e. the electric oil pressure sender is bad and the person never tested pressure with a mechanical gauge and just condemned the engine to have 0 oil pressure by looking at the dead gauge.

The shutdown could be due to the exhaust like I had.

Its best to check it in person.

__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)