BenzWorld Junior Member
Date registered: Aug 2007
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Snapping head bolts
The repair of my C250D continues to be an enigma to me
Today I went to fit the reconditioned head with a new gasket set, all was fine until I wen to torque down the bolts -
I progressively went in sequence tightening the bolts 4/5 times with the (new) torque wrench set at 5ft lbs the lowest it will go, (Haynes recommend 11ft lbs for stage one) I kept tightening but nothing, the wrench didnt 'click' instead one of the bolts snapped
Picture below is of the bolt and wrench (setting has moved at bit but it was on 1) The bolts are not new as they are within 1mm of the stretch tolerances.
Last edited by spock500; 04-12-2008 at 09:05 AM.