We're running 0w40 Mobil 1 Synthetic in our '83 and it loves it. I run the ultra expensive Mobil 1 5w40 synthetic "turbodiesel" oil in my car.... Runs amazing on it. Neither cars have even the slightest wear on the cam, and the '83 has over 275k!

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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)

The cam-wear could have been caused by partial blockage of the lube spray holes in the pipe that runs the length of the engine....

Ive seen this sort of thing on the old Ford Pinto type OHC engines some years ago.....

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Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....

Howdy,

As I don't know what your particular cam and rockers look like....it would be kinda hard to diagnose.....however, any valve train that has way too much clearance will damage both the camshaft and the rocker/follower.....as the cam turns excessive clearance will allow the rocker/follower to bounce and will eventually deform/dent the camshaft and/or the rocker.....once this process begins, it's too late to correct it....replacement with a new/used camshaft and rockers....or in larger engines with way more expensive parts, there is a spray welding process, and the camshaft can be reground from there.

SB

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Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG

Forgot to mention....

I use Shell Rotella T 15w40.......non synthetic

SB

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Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG

Apparently some 617 engines have inadaquate oiling to the cam. When you install the new cam etc have a look to see if the lobes are getting well oiled. You can carry full gauge pressure and have this problem. There are a couple of passages that need drilled out oversize to correct it if present. Just Make sure to see that all lobes are getting a good oil feed. If not let me know and I will reffer you to the corrective information. Your wear description sounds like a good candidate. When the problem is present you will only have the smallest amount of oil on the lobes.

[QUOTE=Carson357;1291728]that is good, i wish i knew what caused mine to wear, infrequent oil service??

Never adjusting the valves will cause ware as they tighten up over time. Had to change a cam out on my daughters 240 because the PO had'nt adjusted the valves in years.

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"

I'm not finding it but my skills are very poor at searching.
There was a post that one of our members posted with a mod to improve cam oiling.
Maybe your search skills are better than mine.
Alberta Luthier

i used everything from the donor engine, it had over 200K and all looked like new so those parts should be fine, here are some pictures, sorry for the poor focus.

Attached Thumbnails

     

Must be nice to have a junk yard locally that has Mercedes cars in it

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RIP: 80 300SD
RIP: 79 450SEL
2002 E430 4matic (212,000km)
2002 ML500 'sport'

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FACEBOOK: PANZER450

yes it is, we have 3 or 4 real close. one was full of 560 sel's hard to believe they are so many there

I would be interested to know what my exact oil pressure is. I might hook up the oil pressure testing gauge and check it.

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1982 MBZ 300SD Turbo Diesel- just turned 200,000- just breaking her in