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Old 01-23-2003, 12:12 AM
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Valve Cover Torque Spec

Does anyone know the torque spec for the valve cover on my 300CD. I tried doing a search and couldn't find one, the only thing I came up with for torque specs is 9 Nm on a 190 2.3-16. I am guessing that it is probally somewhere around that on my 300CD, am I correct?
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Old 01-23-2003, 08:16 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
On the OM617 engines you can't really "over-tighten" the bolts as the valve cover itself sits on the head surface, however 8mm studs shouldn't be torqued more than 15ft lbs.
The factory spec is 15Nm & that is close to 10ft lbs.

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