TM 5-1940-322-24
0158 00
CAMSHAFT, CAM GEAR, AND CAM BUSHING MAINTENANCE (Contd)
INSTALLATION (Contd)
7.
Install two screws (5) on camshaft thrust support (6) and engine block (3). Tighten screws (5) to
18 lb-ft (24 Nm).
8.
Using dial indicator and magnetic base, measure camshaft gear (1) end play. End play must be
between 0.005 in. (0.12 mm) minimum and 0.018 in. (0.47 mm) maximum. If not within limits, replace
camshaft thrust support (6) and recheck end play.
9.
Install fuel injection pump (WP 0084 00).
10.
Using dial indicator and magnetic base, measure camshaft gear (1) backlash between crankshaft
gear (4) and fuel injection pump gear (7). Backlash must be between 0.013 in. (0.330 mm) minimum
and 0.030 in (0.76 mm) maximum. If not within limits, replace camshaft gear (1), crankshaft gear (4),
or fuel injection pump gear (7), and recheck backlash.
11.
Remove twelve wooden dowels and six rubber bands from tappets.
12.
Install push rods and rocker arm assemblies (WP 0109 00).
13.
Install fuel lift pump (WP 0103 00).
14.
Install front gear housing cover (WP 0155 00).
15.
Install engine in boat (WP 0115 00).
1
2
TIMING MARKS
TIMING
MARK
3
4
2
1
5
6
4
5
0158 00-8
