Shibaura N843, Workshop Manual

Page: 41 / 75

109823 2/09 4-5
Idle gear · Oil pump assembly
1. Install a thrust washer to the idle gear shaft.
2. Install the idle gear assembly.
3. Align the match marks of the idle gear, crankshaft
gear and camshaft gear and install it to the idle gear
shaft.
4. Install the rotor.
5. Install the oil pump cover, shim, spring and collar and
fix with a snap ring.
Notes: 1. Coat both sides of the rotor and vane with
grease before installing them.
2. Do not turn the crankshaft until the timing
gear case is installed.
3. By turning the oil pump cover either
direction, set the spring pin insert hole to
the middle position and fit the gear case.
6. Adjust the shims so that the oil pump, rotor and vane
side clearance is 0.004-0.006 in (0.1–0.15 mm).
Timing gear case · Cover
1. Loosen the lock nut and remove the low idle set bolt.
Install the start spring between the timing gear case
and governor link.
2. Insert the link into the cylinder block hole while
turning the governor lever to clockwise and hold it,
and then install the timing gear case.
3. Reinstall the low idle set bolt and secure the lock nut.
4. Install the covers.
Fig. 4-11
1. Thrust washer
2. Idle gear ass’y
3. Rotor 4. Oil pump cover
5. Shim
6. Snap ring
Fig. 4-12
1
2
3
4
5
6
Cam shaft gear
Idle gear
Crankshaft gear
Match mark
Match mark
Fig. 4-13
Shims
Idle gear
Fig. 4-14
Governor lever
Lock
Low idle adjusting bolt
A
nut