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Old 02-02-2001, 10:25 PM
Coming back from burnout
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
i recently acquired one with 233k.Is it due for overhaul?
Does it need timing chain change/valve adjustment?
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Old 02-02-2001, 10:34 PM
Posts: n/a
Why do you feel it needs an overhaul?
1. Is it lacking power?
2. Is it buning or leaking oil?
3. Is the engine starting easily down to 25 degrees F?
4. Do you hear a rattle when after the car fires?
If you answered no to all these questions rest assured you benz is a stong runner!
You can check the slack on the timing belt to see if it needs changed. With your mileage i would strongly recommend it. Mine has 188K and has the orginal. Its not that expensive of a job less than $350 i am told.
Just my $0.02.
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Old 02-03-2001, 01:40 AM
MikeTangas's Avatar
Senior Member
Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
Do you have any history on the car, such as records, receipts, etc? If not, I would suggest adjusting the valves soon, or having them adjusted by your trusted tech. He can also check the timing chain stretch at that time. I would also change the motor oil and filter, and all other fluids (including brake fluid) and filters straight away, and start a new history. These engines are capable of very high mileage if well taken care of.
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon least its a diesel

Non illegitemae carborundum.
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Old 02-03-2001, 01:49 AM
Registered User
Join Date: Sep 2000
Posts: 97
Mine has almost 250K, no rebuild. Had the timing chain replaced every 100K..runs great
1) 84 300SD 285K+ Miles (Ver Calif)
2) 84 300SD 175K+ Miles (Ver Federal)
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Old 02-05-2001, 10:49 PM
Registered User
Join Date: Jun 1999
Location: Los Angeles, Calif, USA
Posts: 521
Adjust the valve now and every 15000 mile. Check the timing chain every 15000 mile too. Unlike the gas engine, a well kept diesel engine may never need a new timing chain until engine overhaul. Steve posted a way to measure the life of a diesel engines (dated 2/4/01, under the topic of "Diesel Blowby").

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Old 02-05-2001, 11:53 PM
Larry Delor's Avatar
What, Me Worry?
Join Date: Jun 1999
Location: Sarasota, Fl.
Posts: 3,026
fz500sel has (I think by now) well over 280k miles on his '85 300D, and he still drives the pi$$ out of it.
Isn't that right Frankie?
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Old 02-06-2001, 10:29 AM
fz500sel's Avatar
Happy now in paradise!
Join Date: Nov 1999
Location: Venice, FL - "sharktooth capital of the world"
Posts: 712
still runs like a top

Larry Patrick, er...Delor


Just turned over 280,000 and it still runs great (knock on wood). Although, I DID just start having trouble with the antenna not going all the way up. But that's another story...

(for those of you just joinin' in, these are not MY original miles. I purchased the car from the original owner at 267,000 miles)

85 300D 310K (sold)
90 350SDL 184K sold
83 300D 118K (sold)
88 300E 153k (sold)
93 400E 105K (sold)
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Old 02-06-2001, 07:43 PM
Posts: n/a
Why overhaul now?

I turned over 295,000 in my '86 300SDL just yesterday and it still runs just fine!

Good luck.
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Old 02-06-2001, 10:16 PM
IMUL's Avatar
Registered User
Join Date: Oct 2000
Posts: 52
Don't assume that a rebuild is needed just because it has a "few" thousand miles on it. I test drove an 84 300sd about 4 months ago that had more that 300k (the odometer had stopped at 316k). It was owned by a realtor who rarely had any maintanence performed (6k to 8k between oil changes). Depsite his total lack of care for the vehicle, it ran surprisingly well ... never rebuilt ... original timing chain.
1980 Mercedes 240D
1982 Mercedes 300SD
1985 Mercedes 300D
1993 Dodge Cummins Turbo Diesel
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Old 02-06-2001, 11:01 PM
Posts: n/a
WOW, no maintain der beast

My 1987 300E spark ignition with 177,900 miles and going strong.
I've always over done the oil changes etc.
But these compression ignition beasts can't be broken!
I bought mine new, but except for the tinkerring I can do to mine(mods for performance), if I could turn the calender back, mine might be going clackedy clack instead of huummm.
Happy Trails Beep Beep from Houston!!!
Donald, El Cheapo
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