7-2
Removing Flywheel and Engine Pulley
1. Remove the generator/engine assembly from
the genset. See REMOVING / INSTALLING
GENERATOR / ENGINE ASSEMBLY, Sec-
tion 9. Engine.
2. Remove the eight fan shroud bolts and remove
the fan shroud (Figure 7-1).
3. Remove the two ignition coils. See IGNITION
COILS in this section.
4. Remove the four nuts in the face of the flywheel
that secure the pulley coupling to the flywheel
(Figure 7-2). (Otherwise, it will be necessary to
remove the generator pulley to seat the belt
back on both pulleys.)
5. Block the flywheel from turning and remove the
center bolt. Use a wheel puller to break the fly-
wheel free of the crankshaft taper. Two M10
bolt tappings are provided on the face for pull-
ing.
6. Secure the crankshaft taper key so that it will
not fall out.
7. Turn the belt tensioner away from the belt with
a 1/2 inch socket driver and block it there while
lifting off the flywheel.
Removing Tensioner Pulley
First remove the fan and generator pulley
(Page 7-1) so that the belt tensioner arm assembly
can swing over and relieve the spring tension, and
then remove the center bolt.
Reassembling Pulleys and Flywheel
Install the belt tensioner assembly if it has been re-
moved. Torque the center bolt to 20 lb-ft (27 N-m).
Turn the belt tensioner away from the belt with a
1/2 inch socket driver and block it there while seat-
ing the belt on the pulleys.
If only the generator pulley has been removed
and the belt is still around the engine pulley,
wrap the belt around the generator pulley and install
the pulley on its shaft. Check to see that the belt is
properly seated in its groves in both pulleys. Secure
the fan and its backplate. Torque the generator
pulley center bolt to 45 lb-ft (61 N-m). Torque the fan
bolts to 8 lb-ft (11 N-m).
If only the engine pulley have been removed and
the belt is still around the generator pulley:
1. Unless the engine pulley and flywheel are
apart, remove the four nuts in the face of the fly-
wheel that secure the pulley coupling to the fly-
wheel and pull the pulley and flywheel apart.
2. Wrap the belt around the engine pulley and lay
the pulley around the crankshaft.
3. Make sure the key is in the crankshaft and line
up the flywheel with the key and the four bolts
in the pulley coupling. Thread on the four cou-
pling nuts and the center bolt and washer.
Check to see that the belt is properly seated in
its groves in both pulleys. Torque the coupling
nuts to 5 lb-ft (6 N-m). Torque the flywheel cen-
ter bolt to 60 lb-ft (81 N-m).
If both pulleys have been removed, assemble the
engine pulley and flywheel if they have been taken
apart, wrap the belt around the engine pulley, install
the flywheel and then install the generator pulley.
Reinstall the ignition coils and set the air gaps (IGNI-
TION COILS in this section) if the flywheel has been
removed. Install the fan shroud, making sure the ex-
haust manifold insulation (Figure 7-1) is in place.
Note that the fan shroud bolts are of two lengths.
Torque the fan shroud bolts to 8 lb-ft (11 N-m).
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