Mitsubishi diesel engines, Service Manual, Page: 108 / 219

FUEL SYSTEM - DISASSEMBLY, INSPECTION AND REASSEMBLY
3 - 17
2.4 Reassembling the fuel injection pumps
Air bleed plug
Tightening torque:
9.81 to 13.7 N m
(1.0 to 1.4 kgf m)
[7.2 to 10.1 lbf ft]
Replace: O-ring
Replace: Lock plate
Tightening torque:
39.2 to 49.0 N m
(4.0 to 5.0 kgf m)
[28.9 to 36.2 lbf ft]
Tightening torque:
19.6 to 24.5 N m
(2.0 to 2.5 kgf m)
[14.5 to 18.1 lbf ft]
Reassembly of the fuel injection pumps
To reassembly, follows the disassembly sequence in reverse and do the following steps.
(1) Inserting the plunger barrels
Ensure that the plunger barrel groove is aligned
with the knock pin of the pump housing.
Note: If the plunger barrel groove is not aligned with
the knock pin, the O-ring will not seat properly in
the pump housing when the delivery valve holder
is being loosely tightened in the next operation.
(2) Installing the delivery valves
Install the delivery valve, gasket, spring and
O-ring. Loosely tighten the delivery valve
holder.
(a) Discard the old O-ring. Replace with a new
part.
(b) While reassembling, take care not to cut the
O-ring with the threaded portion of the valve
holder.
Inserting the plunger barrel
Installing the delivery valve
Knock pin
Valve
Valve
seat
Delivery
valve