OC60-E2, OC95-E2, WSM
GENERAL
G-9
[5] CHECK POINT OF EVERY 800 HOURS
Checking Valve Clearance
A
Valve clearance must be checked and adjusted when
engine is cold.
1. Remove the cylinder head cover.
2. Align the "T" mark line (1) on the flywheel and the mark (2) on
the fin at the T.D.C. in the compression stroke.
3. Check the intake and exhaust valve clearance with a thickness
gauge.
4. If the clearance is not within the factory specifications, adjust
with the adjusting screw.
5. After adjusting the valve clearance, firmly tighten the lock nut
on the adjusting screw.
A
After rotating the flywheel clockwise twice or three times,
check the valve clearance again.
[6] CHECK POINTS OF EVERY 1500 HOURS
Checking Nozzle Injection Pressure
1. Set the injection nozzle to the nozzle tester.
2. Slowly move the tester handle to measure the pressure at
which fuel begins jetting out from the nozzle.
3. If the measurement is not within the factory specifications,
disassemble the injection nozzle, and change adjusting
washer until the proper injection pressure is obtained.
(Reference)
A
Pressure variation with 0.15 mm (0.0059 in.) difference of
adjusting washer thickness 981 kPa (10
, 142 psi).
Valve clearance
Factory spec.
0.14 to 0.18 mm
0.0055 to 0.0071 in.
(1)
T Mark Line
(2)
Mark
0000009371E
A
Check the nozzle injection pressure and condition after confirming that there is nobody standing in the
direction the fume goes.
A
If the fume from the nozzle penetrate the human body, cells may be destroyed and blood poisoning may
be caused.
0000009373E
Nozzle injection
pressure
Factory spec.
13.9 to 14.7 MPa
142 to 150
2019 to 2133 psi
0000009374E
