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#1
08-08-2007, 08:49 PM
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Question on upper oil pan gasket and rear main seal
I was told today that the upper oil pan gasket is only an RTV type sealant. What is the right sealant to use? Also would you replace a rear main seal if it's not leaking but as a PM item while the engine is out? Thanks for the advice.
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If it ain't broke take it apart and find out why.  1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon 
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#2
08-08-2007, 10:47 PM
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What car?
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83 SD 84 CD
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#3
08-08-2007, 10:48 PM
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The one in my sig with a om617.951 diesel engine.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon
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#4
08-08-2007, 10:52 PM
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yes, RTV sealant, available at your local MB stealership for about $15/tube. Similar to permatex black, but I'd use the MB since it should hold for the next 300K miles or so. If it's hot out which if you're pretty much anywhere in the US right now it is, you need to work fast. You don't wait for it to tack and it will tack quickly.
Replace the rear main seal as per the FSM. It costs something like $2 so no reason not to.
__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD 1979 300SD 245K miles (never ending project) 2007 Pinarello F3:13 1995 Ducati 916 (SOLD, sniff) 1999 Ducati 900SSie (SOLD)
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