torque settings

[Drew SS]

guys anybody no the head bolt settings and the rocker cover settings please

[Boosted LS1]

Are you using factory head bolts or arp studs? Factory bolts have an initial setting to settle them followed by 2 angular settings. I use a digital guage for this. The arp's are a straightforward torque setting but which arp's have you got if using those?

[drew ss]

There factory bolts mate

[ferb]

Drew SS said:

guys anybody no the head bolt settings and the rocker cover settings please

Cylinder head bolts (in sequence)
step one All M11 and M8 bolts....................................30nm
step two All M11 bolts..................Turn an additional 90 degrees
step three M11 bolts (1 through 8)......Turn an additional 90 degrees
M11 bolts (9and 10).....................Turn an additional 50 degrees
Valve cover bolts 12nm

[drew ss]

ferb said:

Drew SS said:

guys anybody no the head bolt settings and the rocker cover settings please

Cylinder head bolts (in sequence)
step one All M11 and M8 bolts....................................30nm
step two All M11 bolts..................Turn an additional 90 degrees
step three M11 bolts (1 through 8)......Turn an additional 90 degrees
M11 bolts (9and 10).....................Turn an additional 50 degrees
Valve cover bolts 12nm

cheers ferb will tighten them tomorrow as its bloody freezing in the shed havent my heater up and runnin yet

[Boosted LS1]

Drew, which engine is this, don't start to soon? Are your bolts all the same length and same length as the removed bolts? Do you know which one's are 9 & 10? If all same length it may be that 9 & 10 are same settings as the other 8. If you have two short bolts then do them as suggested above.

Also, when you do tighten them down I'd recommend you do one head at a time.

[ferb]

Boosted LS1 said:

Drew, which engine is this, don't start to soon? Are your bolts all the same length and same length as the removed bolts? Do you know which one's are 9 & 10? If all same length it may be that 9 & 10 are same settings as the other 8. If you have two short bolts then do them as suggested above.

Also, when you do tighten them down I'd recommend you do one head at a time.

I quoted figers from my Gregory's service & repair manual. Drews ute is the same as mine, Just a slower colour

[jhinchy]

Are you uprating or repairing?

[Boosted LS1]

Ferb, the early engines had 2 shorter pinch bolts (9&10)which as you say have a lower torque value. Later engines have equal length bolts and I can't remember if they are all done to the same setting hence my asking which engine it is and what the bolt lengths are.

[ferb]

Boosted LS1 said:

Ferb, the early engines had 2 shorter pinch bolts (9&10)which as you say have a lower torque value. Later engines have equal length bolts and I can't remember if they are all done to the same setting hence my asking which engine it is and what the bolt lengths are.

No worries mate, it's best to check. Drew, you should have got yourself a manual before you started.

[drew ss]

ferb said:

Boosted LS1 said:

Ferb, the early engines had 2 shorter pinch bolts (9&10)which as you say have a lower torque value. Later engines have equal length bolts and I can't remember if they are all done to the same setting hence my asking which engine it is and what the bolt lengths are.

No worries mate, it's best to check. Drew, you should have got yourself a manual before you started.

its been in that state since thursday just got the heads finished last night and low and behold the only setting that i didnt have was the two i asked for u are correct 9 and 10 are shorter will be sorted tomorrow and up and running i hope........

[ferb]

drew ss said:

ferb said:

Boosted LS1 said:

Ferb, the early engines had 2 shorter pinch bolts (9&10)which as you say have a lower torque value. Later engines have equal length bolts and I can't remember if they are all done to the same setting hence my asking which engine it is and what the bolt lengths are.

No worries mate, it's best to check. Drew, you should have got yourself a manual before you started.

its been in that state since thursday just got the heads finished last night and low and behold the only setting that i didnt have was the two i asked for u are correct 9 and 10 are shorter will be sorted tomorrow and up and running i hope........

[Boosted LS1]

There you go then. If 9&10 are shorter then it's an earlier engine so follow Ferbs suggestions.

Also, the reason I say do one head at a time is because the bolts have threadlock on them which goes soft as you tighten the bolts. If you have to stop part way through the procedure for some reason, you don't want it to harden again. If you do one head (that'll take some time anyway) you can go and have lunch etc and then do the other one

Make sure you get the head gaskets the right way round, they're handed.