ENGINE
SM-E4B SERIES, WSM
1-S40
Fuel Camshaft
1. Remove the retaining plate (6).
2. Remove the fork lever holder mounting screws (8), then draw
out the injection pump gear (1) and fuel camshaft (7) with the
governor fork assembly.
(When reassembling)
• Hook the governor spring (5) to the fork lever 2 (4) before
installing the fork lever assembly to the crankcase.
9Y1210785ENS0046US0
Oil Pump and Crankshaft Gear
1. Remove the oil pump gear (7).
2. Remove the oil pump mounting screw (6) and the oil pump (5).
3. Remove the collar (4), O-ring (3) and crankshaft oil slinger (2).
For Z482-E4B, D722-E4B, D782-E4B
4. Remove the crankshaft gear (1) with a puller.
(When reassembling)
• Install the collar (4) after aligning the marks on the gears. (See
the photo at "Idle Gear".)
9Y1210785ENS0047US0
Oil Pump and Crankshaft Gear (One-side Maintenance Type)
1. Remove the oil pump mounting screw (6) and the oil pump (5).
2. Remove the collar (4), O-ring (3) and crankshaft oil slinger (2).
For Z482-E4B, D722-E4B, D782-E4B
3. Remove the crankshaft gear (1) with a puller.
(When reassembling)
• Install the collar (4) after aligning the marks on the gears. (See
the photo at "Idle Gear".)
9Y1210785ENS0048US0
(1) Injection Pump Gear
(2) Governor Sleeve
(3) Fork Lever 1
(4) Fork Lever 2
(5) Governor Spring
(6) Retaining Plate
(7) Fuel Camshaft
(8) Fork Lever Holder Mounting Screw
Tightening torque Oil pump mounting screw
18 to 21 N·m
1.8 to 2.2 kgf·m
13 to 15 lbf·ft
(1) Crankshaft Gear
(2) Crankshaft Oil Slinger
(3) O-ring
(4) Crankshaft Collar
(5) Oil Pump
(6) Oil Pump Mounting Screw
(7) Oil Pump Gear
Tightening torque Oil pump mounting screw
18 to 21 N·m
1.8 to 2.2 kgf·m
13 to 15 lbf·ft
(1) Crankshaft Gear
(2) Crankshaft Oil Slinger
(3) O-ring
(4) Crankshaft Collar
(5) Oil Pump
(6) Oil Pump Mounting Screw
(7) Oil Pump Gear