Question about Cars & Trucks
Torque setting on head bolts
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: torque settings
Posted on Aug 06, 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
SOURCE: Angle Torque settings head bolts
Use new bolts, tighten in the following stages
3. wait 3 mins
4. slacken bolts 1&2 retighten to 20Nm +110 degrees
5. carry out stage 4 for bolts 3,4,5 & 6
then bolts 7,8,9 &10
8 4 1 5 9
7 3 2 6 10
Bolts 9 & 10 are flywheel side of the engine.
Posted on Mar 17, 2009
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