mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Checking, Replacement and Tightening of Big-End Clamp Bolts|Page 1067 > < Checking, Replacement and Tightening of Big-End Clamp Bolts|Page 1065
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1

Check connecting rod bolts and renew, if required. See: Checking, Replacement and Tightening of Big-End Clamp Bolts

2

Check bores for connecting rod bolts.

Mount connecting rod bearing cap on a connecting rod bolt. If the connecting rod bearing cap is moving downwards under its own weight, the 
connecting rod must be replaced.

3

Mount connecting rod bearing caps, lubricate connecting rod nuts and tighten to 40 - 50 Nm preload and 90-100° angle of rotation torque.

4

Measure connecting rod bearing basic bore If basic bore exceeds a specified value of 55.62 mm or is conical in shape. refinish bearing cap
supporting surface on a face plate up to max. 0.02 mm.

Checking, Replacement and Tightening of Big-End Clamp Bolts|Page 1067 > < Checking, Replacement and Tightening of Big-End Clamp Bolts|Page 1065