Mechanics

PONTIAC GRAND AM TORQUE PROBLEM

2002 Pontiac Grand Am

I need torque specs and sequence for 02 grand am 3.4, For head bolts, Lower intake, and rockers. Thanks
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J.stieg
January 19, 2013.




This article has been updated with TSB 02-06-01-003B, 4/15/08
This bulletin is being revised to include a Notice advising that the cylinder head bolts are NOT TO BE RE-USED. Please discard Corporate Bulletin Number 02-06-01-003A.

Notice: This component uses torque-to-yield bolts. When servicing this component, do not re-use the bolts. New torque-to-yield bolts must be installed. Re-using used torque-to-yield bolts will not provide proper bolt torque and clamp load. Failure to install NEW torque-to-yield bolts may lead to engine damage.

Tighten the NEW cylinder head bolts to 60 Nm (44 lb ft) in the order shown. Use the J 36660-A torque angle meter in order to rotate the cylinder head bolts an additional 95 degrees.

Tighten center out for sequence

This article has been updated with bulletin No: 02-06-01-034.

REVISED ROCKER ARM BOLT FASTENER TIGHTENING SPECIFICATION

Rocker arm bolt 14 N.M (124 lb. In.) Plus 30

Install NEW lower intake manifold bolts.

The torque specification is a 2-step process; tighten the vertical lower intake manifold bolts (the four middle ones) to 7 Nm (62 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 7 Nm (62 lb in). Tighten the vertical lower intake manifold bolts (the four middle ones) to 13 Nm (115 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 25 Nm (18 lb ft).

Upper Intake Manifold
Tighten Bolt/stud 25 Nm (18 ft. Lbs)

ASEMaster6371
Jan 19, 2013.


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