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#1
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Cam lube.. should I worry?
Yesterday I fired up my engine after it had been sitting idle for a couple of months. It ran fine for about 2-3 minutes, after that I shut it off.
Took off the valve cover and this is what it looks like, cam is completely dry between the two last lobes, you can clearly see the surface rust on it. The last two lobes were.. if I stretch it.. barely lubricated. Should I worry about this? I mean, it ran just for a couple of minutes, maybe it takes some time for the oil to reach all the way back there? Should I pull the oil line and clean it, maybe there's crap in it? Whadda ya think? It's a OM617.910 and it has oil pressure (needle pegged to 3).
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Tomas, Sweden 1966 Mercedes Benz 230S with OM617.912, automatic. Disk brakes from W108 1983 Mercedes Benz 300TD grey, OM617.912 and 5-speed manual 1983 Mercedes Benz 300TD blue 7-seater, OM617.912 and 5-speed manual |
#2
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Since you have your cover off it would be a good idea to smear some lube on them.
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DJ 84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012 |
#3
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Sounds to me like plugged oil galleys.
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42 |
#4
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Looks to me like the rust was on the cam between the lobes. I am not sure but there is no contact there and would probably go away with more running.
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-disav 99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete 98 E300 TURBODIESEL Alexandrite Green on black leather 289K 95 E300 DIESEL Green Queen 267K SOLD 84 300D 216k SOLD 87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD 76 300D 214K SOLD |
#5
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I thought the same.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#6
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Try using a rubber tipped blow gun with air ... use goggles... to clear those holes ... you do really need that oil going to every lobe....
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#7
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You need to start the car and check to see if oil is coming out of the oil lines. I would say that just running the car would take any rust off. Also, might be a good idea to get the old oil can (do people still have oil cans?) out and give everything up there a nice oil bath.
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-Randy Wakefield 1969 220D 4 speed (parts car) 1976 280C 1976 280S 1981 240D 4 speed (parts car) 1982 300D 1983 300TD (Ivory) 1983 300TD (gold) 1985 300TD (gray) 1987 190D 2.5 1970 280SEL (sold) 1977 240D 4 speed (sold) 1974 280 (rusted to death) --- 1927 Chevy 4 door sedan 1938 Chevy 2 door sedan 1950 Willys Jeepster 1955 Studebaker President 4 door 1977 Ford F250 1979 Glastron 17' 1948 John Deere A 1960 John Deere 2010 1979 Satoh S650G -- 2000 Bichon (Doby) |
#8
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a friend of mine used brake cleaner (he took it off of the bearing tower things first)
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1981 300SD 512k OM603 |
#9
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Thanks all..
I'm not really worried about the rust per se, that part of the cam has no contact with anything so it's not a problem. What worries is that the rust is visible, the cam should be soaked in oil, but it isn't.. Might do as DieselBone suggest and run the engine without the valve cover, to see if there's any oil coming out those holes anyways.
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Tomas, Sweden 1966 Mercedes Benz 230S with OM617.912, automatic. Disk brakes from W108 1983 Mercedes Benz 300TD grey, OM617.912 and 5-speed manual 1983 Mercedes Benz 300TD blue 7-seater, OM617.912 and 5-speed manual |
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