Torque specifications for rocker arms on a 1997 buick century 3.1

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Torque for Rocker Arm Nuts: I Have a 1989 Chevy Cavalier ...

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Dec 30, 2006 - For the 2.0L engine: Rocker Arm Stud 33-40 ft. Lb Rocker Nut 11-18 ft. Lb For the 2.8L engine: WITH NON-ADJUSTABLE ROCKER STUDS Torque ...

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Valve Lash

https://www.google.com/search?q=1986+cavalier+2.0+valve+lash+adjustment

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The rocker arms need to be adjusted, they are not set to a specific torque, they use self locking "crimp" nuts to hold the adjustment, these nuts should not be used over to hold the adjustment replace them.. With the lifters fully "pumped" up tighten the rocker arms to "zero" lash, the turn them in an additional 3/4 turn, you are done.

Call any major autoparts store for the correct answer. There are updated torque specs for the gm 3.4 vs in order to deal with a common issue of leaking intake manifold gaskets. They should have the correct updated spec for you vehicle based on the specific Vin number

No torque sequence on rocker arm bolts. 11 ft lbs plus 30 degrees.
A torque wrench rated for inch lbs should be a finer adjustment.

Tightening sequence would be to tighten from the center most bolts to the outer most bolts.
Intake Upper Bolts = 18 lb.ft.
Intake Lower Bolts = 10 lb.ft.
Exhaust Manifold Nut = 12 lb.ft
Exhaust Manifold pipe = 22 lb.ft.
Exhaust Manifold Heat Shield = 18 lb.in.
Rocker Arm Torque Nuts = 18 lb.ft.

Hope this helped you ?? if you need more info, get back to me.....

remove valve cover remove center bolt on rocker arm, it could be a 10mm put new rockerarm in tighten to specification. it could be 15 - 20 ft.lbs. of torque. e-mail me engine size and will email you torque spec tomorrow

valves are not adjustable torque rocker arms to 120 inch/lb then 30 degrees

Intake Manifold Coolant Pipe Bolt .... 89 in lbs (7.4166 ft. lbs)
Lower Intake Manifold Bolt .............. 115 in. lbs (9.5833 ft. lbs)
Upper Intake Manifold Bolt/Stud ...... 18 ft. lbs
Valve Rocker Arm Bolt ................... 168 in. lbs (14 ft. lbs +30 degress

20Nm (14 ft lbs.)

on 3.1 v6 it is--rocker arm bolts--- 89 in-lbs,intake manifold(lower)---step 1-62 in-lbs step 2 115 in-lbs. for year 1997 3.1,