CLEANING - TM-9-2320-269-34-10177

TM 9-2320-269-34-1

INTAKE AND EXHAUST VALVES - CONTINUED

ACTION

LOCATION

ITEM

REMARKS

CLEANING

WARNING

Carbon cleaning compound is a corrosive liquid. If splashed in eyes, it can cause blindness. If splashed on

skin it can cause very serious burns. Be sure to wear safety goggles or lenses, rubber apron and rubber

gloves. If accidentally splashed in eyes or on skin, flush with clean, cool water and refer to First Aid Manual,

FM 21-11. Be sure to wear safety goggles or lenses when using compressed air. Compressed air and

particles moved by compressed air can cause damage to your eyes.

All valve parts

Soak parts in carbon cleaning

compound.

Using fine wire brush, clean off all

carbon.

Rinse in clean water.

Blow dry with compressed air.

INSPECTION/REPLACEMENTIREPAIR

NOTE

For more information on how to inspect parts, go to General Maintenance Instructions (page 2-46).

Replace parts that are not within specified limits, or which are defective and cannot be repaired.

Two valve spring

Look for cracks and breaks.

retainers (1)

Valve rotator

Turn by hand, and check for rough or

cup assembly (2)

irregular operation.

Valve spring

Look for cracks and breaks.

cup (3)

Valve seat insert

Look for cracks, burrs, ridges, and

(4), intake valve

pitting.

(5), and exhaust

Mark face of valve (5), all around

valve (6)

with pencil.

Put valve (5) or (6) in cylinder

head (7).

2-160