Question about 1994 Pontiac Bonneville
A few notes. These head bolts are what are called torque to yield, this means they are like a spring and are only used once or the torque spec is not valid.
1ST 37 ft/lbs + 130 degrees OF BOLT ROTATION THEN REPEAT WITH 30 MORE degrees OF ROTATION. there IS NOT A SET TORQUE SPEC IN FT POUNDS
Posted on Feb 15, 2012
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Posted on Jan 02, 2017
the last time i did the same job the gasket kit had the specs inside the box. the parts store should have a book/reference manual
Posted on Dec 09, 2008
torque sequence for head bolts start in the middle of the head barely tighten this and work your way out doing one bolt toward the back and one toward the front on the second pass torque to 30 ft lbs on the second pass torque to 60 ft lbs dunno about the timing marks
Posted on May 01, 2009
There is a service bulletin on this. They have changed the spec, The new spec is 44ft lbs. Then an additional 95 degrees. Start from the center and work you way out
Posted on Mar 30, 2010
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