TURBOCHARGER ASSEMBLY REPAIR - continued

TM 10-3930-673-34

WARNING

Use care when removing snap and retaining rings. Snap and retaining rings are under

spring tension and can act as projectiles when released and could cause severe eye

injury.

(25)

Remove two inner retaining rings (33) from bore of bearing housing (14). Discard

retaining rings.

(26)

If damaged, remove five screws (34),

adapter (35), and gasket (36) from

turbine housing (1).

b. Cleaning.

CAUTION

Do not use a wire brush on the

compressor wheel. Use of a wire

brush on compressor wheel may

cause premature component failure.

(1)

Use a scraper and medium grit

emery cloth to remove carbon

buildup from turbine housing (1).

TR01393

(2)

For general cleaning instructions,

see Cleaning Instructions,

(Para 2-12).

c. Inspection.

(1)

Measure shaft and wheel (19) bearing diameter. Shaft bearing surface minimum

diameter is 0.432 in. (10.972 mm).

(2)

Measure bearing housing (14) bore diameter. Bearing housing bore minimum diameter

is 0.6254 in. (15.885 mm).

(3)

For general inspection instructions, see Inspection Instructions, (Para 2-14).

d. Assembly.

NOTE

Balance marks on shaft and wheel, impeller, thrust collar and oil slinger must be aligned

to make sure rotating parts of turbocharger are properly balanced.

(1)

If removed, install gasket (36), adapter (35), and five screws (34) on turbine

housing (1).

4-25