OC60-E2, OC95-E2, WSM
ENGINE
S-26
Cylinder Head
1. Remove the glow plug first to prevent the damage of it.
2. Remove four cylinder head bolts.
3. Tap the cylinder head with plastic or wooden hammer to
separate it from cylinder block.
(When reassembling)
A
Replace the head gasket with a new one.
A
Tighten the cylinder head bolts gradually after applying engine
oil.
Valves
1. Remove the valve spring collet (4) with a valve lifter.
2. Remove the valve spring retainers (3), valve spring (2) and
valve (1).
(When reassembling)
A
Wash the valve stem and valve guide hole, and apply engine
oil sufficiently.
A
After installing the valve spring collets lightly tap the stem to
assure proper fit with a plastic hammer.
(4) Injection Pump and Injection Nozzle
Injection Pump
1. Remove the fuel inlet pipe.
2. Remove the injection pump mounting screw.
3. Align the control rack pin (1) with the notch (2) on the crank
case, and remove the injection pump (3).
4. Remove the injection pump shims.
5. In principle, the injection pump should not be disassemble.
(When reassembling)
A
When installing the injection pump, insert the control rack pin
(1) firmly into the groove (4) of the fork lever.
A
Addition or reduction of one shim delays or advances the
injection timing by 0.018 to 0.026 rad (1 to 1.5 ).
A
Insert the same number of shims (5) as used before
between crank case and pump, and then check the
injection timing.
Tightening
torque
Cylinder head
mounting bolts
OC60-E2
51.9 to 56.8
5.3 to 5.8
38.3 to 42 ft-lbs
OC95-E2
68.6 to 73.6
7.0 to 7.5
50.6 to 54.2 ft-lbs
0000009226E
(1)
Valve
(3)
Valve Spring Retainer
(2)
Valve Spring
(4)
Valve Spring Collet
0000009227E
(1)
Control Rack Pin
(4)
Groove
(2)
Notch
(5)
Shim
(3)
Injection Pump
0000009228E
