No such thing, just remove them. However there is a sequence to tightening them.
I need head bolt torque specs and sequence on 2003 Chevy Malibu 3.1
criss cross
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A lock nut goes on a bolt with the nylon ring side facing towards the bolt head to prevent it from loosening.
5 3 2 87 1 4 6 3.1 cylinder head bolt sequence
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The Honda had bolt tightening sequence begins with the head bolts on each end of the head. Tighten the head bolts moving to the center, alternating from and to end.
Refer to the factory manual for correct sequence. Loosening sequence if different to tightening, and both should be done in steps, not all at once. Lightly oil thread and under head of bolts and torque as instructed in the manual. Use a new head gasket and clean the head and block surfaces. Take care not to scratch or damage the sealing surfaces. Use a torque wrench and the proper 10mm 12 point deep socket.
The 1994 Nissan Pathfinder had bolt torque specification is 140 pounds. There is not any removal sequence. There is only a sequence to put the bolts in.
What is the head bolt torque for a 1997 chevy lumina four cylinder?