wsm BX1800 Workshop Manual page 143

BX1800 · BX2200, WSM
(B) Injection Nozzle
CAUTION
• Check the injection pressure and condition after confirming that there is nobody standing in the direction
the fume goes.
If the fume from the nozzle directly contacts the human body, cells may be destroyed and blood poisoning
may be caused.
Fuel Tightness of Delivery Valve
1. Remove the engine stop solenoid.
2. Remove the injection pipes and glow plugs.
3. Set a pressure tester to the fuel injection pump.
4. Turn the flywheel and raise the pressure to approx. 14.7 MPa
2
(150 kgf/cm , 2130 psi).
5. Now turn the flywheel back about half a turn (to keep the plunger
free). Maintain the flywheel at this position and clock the time
taken for the pressure to drop from 14.7 to 13.7 MPa (from 150
2
to 140 kgf/cm , from 2130 to 1990 psi).
6. Measure the time needed to decrease the pressure from 14.7 to
13.7 MPa (from 150 to 140 kgf/cm
7. If the measurement is less than allowable limit, replace the
delivery valve.
NOTE
• Apply liquid gasket (Three Bond 1215 or equivalent) to both
sides of the solenoid cover gasket.
Factory spec.
Fuel tightness of
delivery valve
Allowable limit
Nozzle Spraying Condition
1. Set the injection nozzle to a nozzle tester (Code No. 07909-
31361), and check the nozzle spraying condition.
2. If the spraying condition is defective, replace the nozzle piece.
(a) Good
1-S67
ENGINE
2
, from 2130 to 1990 psi).
10 seconds
14.7 → 13.7 MPa
150 → 140 kgf/cm 2
2130 → 1990 psi
5 seconds
14.7 → 13.7 MPa
150 → 140 kgf/cm 2
2130 → 1990 psi
W10403300
(b) Bad
W10411400
KiSC issued 07, 2006 A