Mitsubishi S12R - Fuel Injection Pump - Bleed Air 1; Fuel Injection Pump - Bleed Air 2; Fuel Injection Pump - Bleed Air 3

8 INSPECTION AND MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
137
Pub. No. 291Y1-40720 Revision: 5
■ Fuel Injection Pump - Bleed Air
Bleed air from the fuel injection pump.
• For the location of the fuel injection
pump, refer to "2
ENGINE - OUTLINE"
(→ Page 75).
1 Loosen the air vent plug of the fuel
injection pump by turning it
counterclockwise.
• Tool: Ring spanner
Fig. 8-24 Fuel Injection Pump - Bleed Air 1
2 Connect a clear plastic tube onto the
bleeder screw of the fuel injection
pump, and place a container to
receive fuel.
Fig. 8-25 Fuel Injection Pump - Bleed Air 2
• Prepare a plastic tube (6 mm [0.24 in.]
in diameter, approx. 2 m [78.74 in.]
long).
3 Operate the priming pump up and
down to feed fuel "
Priming Pump -
Operate" (→ Page 135).
• Feed fuel until the fuel free of bubbles flows
from the air vent plug, while observing the
plastic tube.
4 Remove the plastic tube connected
in Step 2, and discard fuel in the
container properly.
5 Tighten the air vent plug of the fuel
injection pump by turning it
clockwise.
• Tool: Torque wrench
• Tightening torque:
13 to 17 Nꞏm {1.33 to 1.73 kgfꞏm}
[9.59 to 12.54 lbfꞏft]
Fig. 8-26 Fuel Injection Pump - Bleed Air 3