Can anyone help me with some torque specs?
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Member
Joined: Jul 2007
Posts: 122
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From: Northwest NJ
'90 300E Blk/Tan
Can anyone help me with some torque specs?
Doing a valve job on my '90 300E M103 engine (unexpectedly.) Can someone give me the torque specs for the following:
Head Bolts
Intake manifold bolts
Exhaust manifold bolts
Cam gear bolts
Thanks ahead of time for the help.
Head Bolts
Intake manifold bolts
Exhaust manifold bolts
Cam gear bolts
Thanks ahead of time for the help.
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Joined: May 2007
Posts: 72
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From: Harpenden, Hertfordshire, England
1996 W124 E320 Coupé, 1990 W124 300E twin turbo, 1991 W126 300 SE, 1984 Ford Capri 2.8i
Head bolts 70Nm stage 1, then angle tighten 90° stage 2 and 90° stage 3. N.B. Follow strict sequence of loosening and tightening the bolts (as you may well know already).
Camshaft-cover bolts 15Nm.
Can't find the others in either the Haynes manual or the MB tech data handbook.
Camshaft-cover bolts 15Nm.
Can't find the others in either the Haynes manual or the MB tech data handbook.
Senior Member
Joined: Jul 2004
Posts: 462
Likes: 3
From: Boulder, CO
86 W124
intake, exhaust and cam are just to a tight point, there is no specific torque. The head is the one that is precise. Make sure you use the right bolts for it and make sure you the proper washers if need be. Most bolts do not need the washer, the ones that have that are fat at the bottom, the ones that are not tappered out need washers. Very important to get it right.
