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| Illustration 1 | g00746909 |
Fuel injection pump | |
Direction of rotation of the camshaft for the fuel injection pump ... Clockwise from the drive end
Type ... In-line cassette
(1) Nut for the high pressure fuel lines
- Tighten the nuts on the high pressure fuel lines to the fuel injection nozzles for the 3003 engine to the following torque. ... 22 N·m (16 lb ft)
- Tighten the nuts on the high pressure fuel lines to the fuel injection nozzles for the 3013, 3014, and 3024 engines to the following torque. ... 20 N·m (15 lb ft)
(2) Holder for the fuel delivery valve
- Tighten the fuel delivery valves to the following torque. ... 41 N·m (30 lb ft)
(3) Tighten the two mounting bolts and two nuts to the following torque:
- 3003 engine ... 6 N·m (53 lb in)
- 3013, 3014, and 3024 engines ... 15 N·m (11 lb ft)
(4) Shim
The shims adjust the timing of the fuel injection pump. A thicker shim retards the timing while a thinner shim advances the timing. The fuel injection pump timing changes one degree for each 0.10 mm (0.004 inch) difference in shim thickness. More than one shim can be used, if necessary.
Note: Do not use sealant on a shim. A thin layer of sealant is included with the final thickness of a new shim. Extra sealant will affect the timing of the fuel injection pump. If a shim is not required, a thin layer of 4C-9612 Silicone Sealant should be applied between the fuel injection pump and the cylinder block.
If a new fuel injection pump, or a new camshaft for the fuel injection pump, or a new cylinder block is installed, a new shim with a thickness of 0.5 mm (0.002 inch) must be used in order to correctly adjust the timing of fuel injection pump.
Refer to the Systems Operation, Testing and Adjusting Module, "Fuel Injection Timing - Check" topic for information on adjusting the fuel injection pump timing.
The following thicknesses of shims are available from your Caterpillar Dealer:
- 0.10 mm (0.004 inch)
- 0.20 mm (0.008 inch)
- 0.30 mm (0.012 inch)
- 0.40 mm (0.016 inch)
- 0.50 mm (0.020 inch)
(5) Vent Screw
Tighten the vent screw to the following torque. ... 6 ± 1 N·m (53 ± 9 lb in)
(6) Fuel supply line from the fuel transfer pump