Cylinder Head - New Torque Specification
86saab03FILE IN S.I. Man VOL. I
SEC. A-2 PG. 197
Service Information
ISSUE: 09/86-884
APPLICATION: ALL 900 MODELS
A new cylinder head torque is now in effect beginning with 1987 Saab 900 and 9000 models. This applies to the re-tightening procedure required at the 1000 Mile Break-In Service and whenever a new cylinder head gasket has been installed on a 1981 or later Saab.
1000 Mile Break-In Service
1. Back off the cylinder head bolts (Torx E16) and tighten them in the order shown to 60 ft.lbs. (80 N-m)*.
Note: It is not necessary to warm up the engine and allow it to cool before tightening the head.
2. Tighten the bolts a further 90 degrees (1/4 turn) in the order shown.
Replacing Cylinder Head Gasket
1. Tighten in the order shown to 45 ft. lbs. (60 N-m).
2. Tighten again in the order shown to 60 ft.lbs. (80 N-m)*.
3. Run the engine until warm (the cooling fan should cycle on) and then allow to cool for 30 minutes.
4. Back off the head bolts and retighten them in the order shown to 60 ft.lbs. (80 N-m)
5. Tighten the bolts a further 90 degrees (1/4 turn) in the order shown. No further tightening is required.
* Indicates new torque specification.