Inspect Flywheel Key, Keyways, Flywheel And Crankshaft; Install Flywheel - All Models; Torque Flywheel Nut - Pre Twin Ii Models (Type Nos. Under 1100); Torque Flywheel Nut - Twin Ii Models (Type Nos. 1100 & Above) - Briggs & Stratton Twin Cylinder L-Head Repair Manual

Inspect Flywheel Key, Keyways,
Flywheel and Crankshaft
Check flywheel key for damage. Check flywheel for
cracks, broken fins or keyway damage. Also check
crankshaft keyways and taper for damage, Fig. 27.
Replace crankshaft, if damaged.
Install Flywheel – All Models
CLEAN FLYWHEEL and crankshaft taper
removing all oil, dirt or grease.
1. Assemble flywheel to crankshaft and align keyways.
2. Insert flywheel key into crankshaft.
Torque Flywheel Nut – Pre Twin II Models
(Type Nos. Under 1100)
1. Install flywheel washer and nut or clutch.
2. Place flywheel strap wrench, Tool #19433, around
outer rim of flywheel,
3. Torque flywheel nut or rewind clutch to 150 ft. lbs.
(203 Nm), Fig. 28.
4. Re-install armature and adjust air gap.
Torque Flywheel Nut – Twin II Models
(Type Nos. 1100 & Above)
1. Install flywheel washer and nut.
2. Place Tool #19321 on fan retainer with lugs of fly-
wheel holder engaging the slots of the fan retainer.
3. Torque flywheel nut to 150 ft. lbs. (203 Nm), Fig. 29.
10
2
Fig. 27 – Check Flywheel and Crankshaft
Fig. 28 – Torque Flywheel Nut – Pre Twin II
Fig. 29 – Torque Flywheel Nut – Twin II
TORQUE
WRENCH
STRAP
WRENCH
#19418
CHECK
#19321
FLYWHEEL
HOLDER