Section IX. EXHAUST AND CRANKCASE BREATHER SYSTEMS

TM 5-4320-237-15

b. Cleaning and Inspection.

(1) Clean the flywheel and key with an

approved cleaning solvent; dry thor-

oughly.

(2) Inspect the flywheel for cracks, dis-

tortion, worn or damaged mounting

hole or keyway, broken cooling fins,

and other damage; replace a dam-

aged flywheel.

(3) Inspect the key for distortion or

damage. Replace the flywheel key if

damaged.

c. Installation.

(1) Refer to figure 28 and install the fly-

wheel.

(2) Install the shroud (para 59).

(3) Install the starting pulley (para 58).

Figure 27. Shroud, removal and installation.

c. Installation.

(1) Refer to figure 27 and install the

shroud.

(2) Install the starting pulley (para 58).

60. Flywheel

a. Removal.

(1) Remove the starting pulley (para

(2) Remove the shroud (para 59).

(3) Refer to figure 28 and remove the

flywheel.

Figure 28. Flywheel, removal and installation.

Section IX. EXHAUST AND CRANKCASE BREATHER SYSTEMS

SUre

to equalize the ambient pressure during

61. General

operation of the engine.

a. Exhaust System. The exhaust system

consists of a spark arresting muffler and the

62. Muffler and Piping

associated piping that connect to the exhaust

a. Service. Refer to figure 29 and service

port on the engine.

the muffler.

b. Crankcase Breather System. The crank-

b. Removal. Refer to figure 29 and remove

case breather system consists of an elbow

shaped breather which allows crankcase pres-

the muffler and piping.