TM 55-1945-205-24-2
0271 00 7/8 blank
0271 00
ADJUST SPARK ADVANCE
1.
Connect timing light to the #1 cylinder spark plug lead (27).
WARNING
2.
Start engine and allow to warm to normal operating temperature. (TM 55-1945-205-10-2)
3.
Shift throttle and shift control lever into forward and run engine at minimum of 5000 RPM.
4.
Verify engine timing pointer (1) is aligned with 17° BTDC (Before Top Dead Center) mark on the flywheel (2).
5.
Shut down RHIB engine. (TM 55-1945-205-10-2)
6.
Adjust spark advance.
a.
Loosen timing adjustment screw nut (28) and turn in or out, as necessary to correct timing.
b.
Turn timing adjustment screw (28) clockwise to retard timing about 1° and turn timing adjustment screw (28)
counterclockwise advances timing about 1°.
c.
When timing is set, tighten timing adjustment screw nut (29).
d.
Repeat steps 3 through 6.
7.
Install RHIB engine air silencer. (WP 0314 00)
8.
Install RHIB engine cover. (WP 0297 00)
9.
Install RHIB battery negative lead terminal. (WP 0336 00)
10. Remove engine from test tank.
END OF WORK PACKAGE
1,2
28,29
27
