| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-223-24-3
(x) Rotate the crankshaft slowly in the direction of engine rotation (clockwise) until a reading of 0.2032
inch (5.161 mm) BTDC is reached on the piston travel gauge.
(y) If the crankshaft is rotated beyond 0.2032 inch (5.161 mm) position, the crankshaft must be rotated
counterclockwise back to 45BTDC. Repeat / step (x).
NOTE
The engine must be on the compression stroke. When the crankshaft is rotated to
TDC on the compression stroke, the indicator on both gauges will move in the same
direction. If they do not, rotate the crankshaft one complete revolution and repeat
steps (q) through (v) of this procedure.
The push rod travel gauge is read in a counterclockwise direction from "0" (zero).
The total amount of travel represents the injection timing code.
(z) Read the push rod travel gauge. The push rod travel must be within the limits given in Table 3-3.
NOTE
To verify the correct injection timing for engine, check the injection timing code on
the engine dataplate.
NOTE
To verify the correct injection timing for engine, check the injection timing code on
the engine dataplate.
(3)
Correcting Injector Timing.
(a) Do not change the cam follower gaskets to correct the injection timing until you check the following
items:
1
Timing tool is correctly installed.
2
Gauges are correctly adjusted.
3
Crankshaft has been rotated in the correct direction.
4
Capscrews for the cam follower housing are tightened to 30 to 35 ft-lb (40.6 to 47.4 N m) torque.
(b) If the reading on the push rod travel gauge is not within limits given in Table 3-3, increase or decrease
the thickness of the cam follower housing gaskets, Table 3-4, as follows:
1 If the indicator reading is higher than the specification, the timing is retarded. Increase the gasket
thickness to advance the injection timing (right hand rotation engine).
3-61
|
||
|
||
