TM-9-2320-386-24-1-2

2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); UNIT, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL; VOLUME 2 OF 2

MAY 2001

TM-9-2320-386-24-1-2 - Page 429 of 636

INSTALLATION

1. Apply lubricant to lobes and journals of camshaft (2).

NOTE

Turn engine to top dead center (TDC) compression stroke for

No. 1 piston, and align timing marks.

Assistant will help with step 2.

2. Install camshaft (2) with camshaft gear (3) in engine block (5).

3. Ensure camshaft gear (3) and idler gear (6) timing dots are aligned.

4. Install camshaft retainer (1) and two screws (4) on engine block (5). Tighten screws (4) 18-21 lb-ft

(25-29 N

•

m).

5. Install new gasket (7) and access cover (8) on rear of engine block (5) with four washers (10) and

screws (9).

6. Check camshaft (2) end play with a dial indicator by placing indicator on engine block (5) with

pointer on end of camshaft (2). Push camshaft (2) in and zero indicator, then pull out on

camshaft (2). The reading on the dial indicator represents end play.

7. End play with new camshaft retainer (1) is 0.005±0.0032 in. (0.13±0.08 mm).

8. Maximum end play is 0.018 in. (0.46 mm) with used camshaft retainer (1). If end play is over

limits, replace camshaft retainer with a new or oversized camshaft retainer (1).

9. Install side covers (WP 0308 00).

10. Install timing gear cover (WP 0310 00).

11. Install flywheel housing (WP 0307 00).

0359 00-4

TM 9-2320-386-24-1-2

0359 00

CAMSHAFT MAINTENANCE (Contd)