105643-0210 ZEXEL 9 420 615 675 BOSCH AUTOM. ADVANCE MECHANISM 9420615675 1056430210 1157402090

1. Bend the tabs of the locks from bolts (2) and remove bolts (2) and sleeve (1).2. Remove five bolts (3) from the flywheel housing. 3. Remove the two bolts and remove tachometer drive (8) from flywheel housing (7).4. Remove the five bolts that hold the flywheel housing to the timing gear plate on the left side of the engine.5. Remove two bolts (5), the three bolts (6) and bolt (9).6. Remove the two bolts that hold the flywheel housing to the timing gear plate at the accessory drive on the right side of the engine.7. Remove nuts (4), and use two persons to remove flywheel housing (7). The weight of the flywheel housing is 90 lb. (41 kg).Install Flywheel Housing
1. Clean the surface of the timing gear plate and put the flywheel housing gasket in position. 2. Put flywheel housing (1) in position and install the nuts and bolts to hold it. 3. Tighten two bolts (3) to a torque of 40 5 lb. ft. (55 7 N m). Tighten three bolts (2) to a torque of 95 10 lb. ft. (130 14 N m). 4. Put the O-ring seal (4) on tachometer drive and install the tachometer drive. Make sure tachometer drive is correctly engaged with the drive shaft before the bolts that hold it are tightened. 5. Install sleeve (5) evenly on the crankshaft rear seal and install the bolts and locks to hold it.end by: a) install BrakeSaverb) install BrakeSaver control valvec) install electric starting motord) install air compressore) install oil pan