Question about 2003 Pontiac Grand Am
1st u must use all new head bolts, that said follow this factory procedure from the manual.
HEAD BOLT TORQUE FOOT POUNDS (FINAL TORQUE) TORQUE SEQUENCE --------- | 6 2 3 7 | | 5 1 4 8 | --------- STEP 1: TORQUE IN SEQUENCE TO 33 FT/LBS STEP 2: TURN AN ADDITIONAL 90 DEGREES RECHECK FINAL TORQUE IN SEQUENCE *** CAUTION *** ENGINE USES TORQUE TO YIELD HEAD BOLTS (TTY) THAT PERMANENTLY STRETCH DURING THE INITIAL INSTALLATION. NEW HEAD BOLTS MUST BE USED WHEN CYLINDER HEAD IS REPLACED OR RE-INSTALLED TO OBTAIN PROPER TORQUE. ALWAYS COAT BOLT THREADS WITH THE PROPER SEALANT
Posted on Feb 20, 2009
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
Hi! i hope this will help you.
tighten in 2 steps:
1st - 22ft.lbs
2nd - 58ft. lbs
then loosen all bolts completely.
Final torque is in 2 steps:
1st- 22ft. lbs.
2nd - 54-61ft. lbs
( if angle torquing in 2nd step, turn all bolts 80 to 85 degrees clockwise with an angle torque wrench. ) i hope this will help you.
Posted on Sep 19, 2009
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