Hey every one,

Just a quick question,

I torqued my oil pan gasket down to 10 lbs. with a torque wrench. I know now that it may be a little to tight. SHould I have any problems with that.

Thanks,

bob c

The MB Shop manual says 10nm which is about 7.5 ft/lb. Oddly the haynes says about 4 times that much. The 10nm figure is for the 615, 616 and 617 motors. Even if your motor is a different number I doubt there is much if any difference. Shouldnot be a problem unless you can see the gasket 'puckering'.


thebern

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1984 300CD 172,483
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thanks for the reply

I did notice a puckering on the gasket although it is not leaking.

Do I need to replace it immediately or leave it alone if it is not leaking.

Thanks for you help.


bob c

Over torqueing is the most common cause of gaskets leaking. It distorts the metal which needs to be placing even pressure on the gasket into higher and lower pressure areas.. sometimes even to zero on the lower side.... and when dealing with aluminum blocks or heads it only takes stripping out one hole in a bad location to more than justify buying and using a torque wrench.
It is also important to tighten up the bolts in increments and a back and forth pattern like with wheel nuts (lugs). It is even more important with light metal objects such as oil pans....