Clutch Installation

- Check flywheel, starter ring gear, grooved ballbearing in crankshaft, seal/crankshaft, release bearing, guide sleeve, release lever, pressure plate and clutch plate for wear or damage.
- Coat guide sleeve with multipurpose Mos2 grease and apply a thin coat of MoS2 multi-purpose grease to splines of central shaft and the grooved ballbearing/flywheel area.
- Lubricate release lever (fork, ball socket and needle sleeves) with white solid lubricating paste AOS 126 0006.





- Install clutch. The friction surfaces must be clean and free of grease.
- Use central shaft 1 of a 928 (or a shortened central shaft from a damaged central tube) to center the clutch plate.
- Tighten bolts uniformly in diagonally opposite sequence. Tightening torque 25 Nm (18 ftlb). Counter by holding hex bolt of front pulley.

NOTE: Replace the grounding point (hex bolt) on the clutch housing of earlier cars with a M 8 x 15 mm stud bolt. Use adhesive, e.g. Loctite 270 to bond stud bolt.

- Install clutch housing and release lever together on engine/release bearing. The bonded bolt in the flywheel for the reference mark transmitter must point down (to avoid damage).
- Tighten clutch housing bolts.

NOTE: Apply Optimoly TA to threads of clutch housing bolts.





- Move release lever until needle sleeve and bore in clutch housing are aligned. Slide in releaselever shaft right way round (milled face toward securing bolt) as far as it will go. If necessary, move release lever back and forth. Never use force.
- With release-lever shaft correctly positioned, screw in mounting bolt and lock with hex nut.
- The sequence for installing central tube, transmission, exhaust system etc. is the reverse of the removal sequence.
- When installing, always observe the following:
1. Always use new seal rings (packing rings).
2. Once all the exhaust-system bolts have been inserted, tighten the flange connection between turbocharger and exhaust system first.
3. Align bypass valve between clutch housing and body.
4. Tighten the M6 bolts connecting bypass line/exhaust cross pipe uniformly to the specified torque 10 Nm (7 ft lb).
5. Test drive car (on road or roller dynamometer). Check exhaust system for leaks.
6. Allow exhaust system to cool down and retighten all accessible nuts and bolts of the system to the specified torque. It is particularly important to retighten the flange between bypass line and exhaust cross pipe.