924 Model

This technical information replaces all previous instructions concerning the tightening of cylinder heads on 924 vehicles produced from 1977 to 1982 (except Turbo).

The torque angle tightening method in conjunction with the following parts is valid for all 924 naturally aspirated engines since the beginning of 1977 production.

Cylinder Head Gasket

Part Number 047 103 383

Polygon Tooth Head Bolts

Part Number 046 103 385

Washers

Part Number N 901 157 01

Tightening specifications to torque angle method. Tightening is done in two steps:

Step 1: 65 N-m (48 ft. lbs.) Step 2: 180 degrees (1/2 turn)



Important:

Sequencing as shown must be kept for each step. Threads and bearing surfaces of bolts must be lightly lubricated with oil prior to installation. Washers must not turn while tightening. Create a reference mark if necessary. Replace head bolts at each repair. When using torque angle method, cylinder head retorque is not necessary.