SOURCE: Engine Bolt Torques- 2005 Chevy Impala/3400 Engine
Head Bolts
Step one 37 ft lbs then tignten 120 degrees more
Rocker arms
Step one 11 ft lbs then tighten 90 degresss more
Upper intake
89 inch lbs
Lower intake
132 inch lbs
SOURCE: 87 samurai bolt torque specs for engine
The haynes book is not recommended since there are numerous mistakes and they still will not update. One of the biggest is the firing order.
The factory service manual is the only way to go.
Head bolts - 46 - 50.5 lbs (there is an order sequence for the bolts)
Intake & exhuast manifolds- 13.5 - 20 lbs
Flywheel - 41.5 - 47 lbs
Clutch cover - 13.5 - 20 lbs
SOURCE: Head bolt torque specs needed for 96 tbird 3.8
Head bolts are torque to yeild so you MUST use new bolts.
Tighten cylinder head retaining bolts in numerical sequence in three steps as follows:
Loosen retaining bolts one at a time two to three revolutions and retighten as follows:
Long bolts:
Short Bolts:
Here is a pic of the sequence
http://i253.photobucket.com/albums/hh43/chuck943/Headboltsequence38L.gif
SOURCE: torque specs for toyota tercel
Hello vienotkelly: The correct Main bolt torque is 42 foot pounds. The connecting rods torque to 29 foot pounds. The torque sequence for the head bolts and the correct way to tighten the bolts are attached to this reply. Thak You for using FixYa. Roger
SOURCE: head bolt torque specs for 200 honda accord 3.0
its a three step process 1st 29ft/lbs 2nd 51ft/lbs 3rd 72.3ft/lbs
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