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Old 12-08-2014, 01:51 PM
Registered User
Join Date: Dec 2014
Posts: 1
OM617 Rebuild ?

A few years back I bought 84 300d that was rusted out and would no longer pass inspection due to frame rot. I pulled the engine and trans and they have been sitting on a cart in my garage ever since. There is about 167k on the odometer when pulled.
My plan is to seperate the two this winter and get the motor up on a stand and clean it up. Ultimatley I would like to use this engine in some sort of build. It ran pretty well when pulled.
So my main question here is this. While the engine is pulled, is there any kind of service items I should be looking at? Suggestions? Thanks
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Old 02-25-2015, 06:08 PM
Registered User
Join Date: Jan 2015
Location: Denver, CO
Posts: 138

In my experience, if you were to clean the engine well, adjust the valves, change the oil and all the filters, make sure the banjo bolts are clean and the alda is properly adjusted, this engine would run fine basically forever, assuming regular maintenance (valves, oil, filters done regularly). There shouldn't be any need to rebuild the engine now or anytime, really, unless it gets damaged by overheating or something like that.

85 300TD 280k
85 300TD 175k
85 300CD 288k
83 300D 316k
95 E320 cabriolet
01 E320 Wagon 4-matic 140k
03 E320 Wagon 4-matic 120k
73 VW Westfalia Camper

84 300D
84 300CD
83 300TD
81 300TD

98 E320 Wagon 4-matic 218k

two 63 220SE coupes
two 63 220Sb 4-door sedans
59 219 ponton 4-door sedan
59 190 ponton 4-door sedan
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Old 02-26-2015, 08:56 AM
Simpler=Better's Avatar
Ham Shanker
Join Date: May 2008
Location: Baltimore, MD
Posts: 2,532
At 167k you're probably still fine on all wear items.

If you want to refresh it install a new "waffle style" oil filter gasket, timing tensioner spring/gasket, new timing chain guides, and a new timing chain.

If you pull the balancer in the front to install a new front main, buy new Mercedes brand bolts for the balancer they go bad. Check your vacuum pump bearings, and the injection pump bushing play.

Don't mess with the rear main(unless it leaks)-you need to pull the crank to replace it.
$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment
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