Generac Power Systems GTH990 User Manual

2-4
SECTION 2: IGNITION
FLYWHEEL
NUT
COIL WIRE ROUTED
UNDER BREATHER
Figure 2-9. Removing Flywheel
INSPECT HERE
Figure 2-10. Check Flywheel And Crankshaft
INSTALL FLYWHEEL:
Note: CLEAN flywheel and crankshaft taper removing all oil, dirt
or grease.
1. Insert flywheel key into crankshaft.
2. Align keyways and assemble flywheel to crankshaft.
Figure 2-11. Torquing Flywheel Nut
Figure 2-12. Installing Flywheel Fan
3. Install washer and flywheel nut.
a. Torque flywheel nut to 204.0 Nm (150 ft. lbs.), Figure 2-11.
4. Assemble fan and retainer to flywheel, Figure 2-12.
a. Torque screws to 21.7 Nm (182 in. lbs.).

Generac Power Systems GTH990 Specifications

General

Brand	Generac Power Systems
Model	GTH990
Category	Engine
Language	English