Unit Injector Hydraulic Pump
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Illustration 1 | g01101301 |
(1) Unit injector hydraulic pump
(3) Fuel transfer pump |
(2) Oil inlet port
- Torque for mating fitting ...
40 ± 4 N·m (30 ± 3 lb ft)
(4) Cover bolts
Use the following procedure in order to torque the cover bolts.
- Torque the bolts to
8 ± 1 N·m (70 ± 9 lb in) . - Turn the bolts for an additional 24 ± 2 degrees.
- Ensure that the torque of the bolts is
10.2 ± 2.0 N·m (90 ± 18 lb in) .
(5) Oil outlet port
- Torque for mating fitting ...
48 + 5 N·m (35 + 4 lb ft)
(6) Fuel outlet port
- Torque for mating fitting ...
23 ± 2 N·m (17 ± 1 lb ft)
(7) Tie bolts for pump housing
Use the following procedure in order to tighten the tie bolts for the pump housing.
- Torque the bolts to
17 ± 2 N·m (13 ± 1 lb ft) . - Turn the bolts for an additional 81± 2 degrees.
- Ensure that the torque of the bolts is
33 ± 5 N·m (24 ± 4 lb ft) .
(8) Fuel inlet port
- Torque for mating fitting ...
23 ± 2 N·m (17 ± 1 lb ft)
Pump performance.
- Rated pump speed ... 3312 RPM
- Maximum intermittent speed of the pump ... 5000 RPM
- Maximum continuous operating pressure ...
28 MPa (4050 psi) - Relief valve opening pressure ...
31 MPa (4500 psi) - Maximum intermittent speed of the pump ... 5000 RPM
Nut for the pump gear (not shown)
Use the following procedure to tighten the nut for the pump gear.
- Torque the nut to
50 ± 5 N·m (37 ± 4 lb ft) . - Turn the nut for an additional 35.5 ± 2.0 degrees.
- Ensure that the torque of the nut is
80 ± 4 N·m (60 ± 3 lb ft) .
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