Question about Cars & Trucks
For most heads starting from the center tighten bolts in three steps increacing the pounds till you get the correct setting.
Posted on Nov 22, 2014
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Posted on Jan 02, 2017
joyce, there are different specs for sohc and dohc engines. my advice is to get a Haynes manual from the auto parts store.
Posted on Sep 01, 2008
SOURCE: head bolts torque settings
According to my haynes manual for G-S reg, 1989-1998 it goes as follows,
Stage 1:- Tighten all bolts by hand until bolt heads just contact cyl. head.
Stage 2:-Tighten all bolts to 40Nm or 30lb ft.
Stage 3:-Angle tighten all bolts a further 60 degrees.
Stage 4:-Angle tighten all bolts again a further 60 degrees.
Stage 5:- M12 x 140mm bolts ONLY angle tighten a further 20 degrees.
Hope this helps everyone, sorry it seems longwinded but that is how it's written in the manual.
Posted on Feb 07, 2009
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:
Posted on Mar 19, 2009
SOURCE: head bolt torque spec
Always use new head bolts.
1)tighten to 40ft/lbs
2)back off 1/2 turn
3)tighten back to 40ft/lbs
4)tighten an additional 90 degrees
5)tighten an additional 90 degrees.
Posted on Aug 16, 2009
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