TM 5-2410-241-23-1
0025
TIMING SENSOR CALIBRATION
00025
1. Remove engine enclosure left door guard (WP 0202).
2. Remove engine enclosure right door guard (WP 0204).
3. Set engine to top center position for No. 1 or No. 6 (WP 0023).
4. Remove two bolts (Figure 19, Item 1), washers (Figure 19, Item 2), cover (Figure 19, Item 3), and O-ring
(Figure 19, Item 7) from engine (Figure 19, Item 4). Discard O-ring.
C AU T I O N
Never turn engine by crankshaft vibration damper. Crankshaft vibration damper is a
precision part. Major engine failure may be caused by damage to crankshaft vibration
damper.
5. Insert engine turning tool (Figure 19, Item 6) in gear (Figure 19, Item 5).
N OT E
Engine must be turned in opposite directionof normal rotation. Normal rotation of engine is
clockwise viewed from front crankshaft.
Rotate engine turning tool 1/8revolution, not engine crankshaft.
6. Rotate engine turning tool (Figure 19, Item 6) counterclockwise 1/8 revolution.
7. Remove engine turing tool (Figure 19, Item 6) from gear (Figure 19, Item 5).
8. Install new O-ring (Figure 19, Item 7), cover (Figure 19, Item 3), two washers (Figure 19, Item 2), and bolts
(Figure 19, Item 1) on engine (Figure 19, Item 4).
Figure 19. Rotate Engine.
0025