3054 and 3054B Engine
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| Illustration 1 | g00293085 |
Fuel injection nozzle | |
(1) Tighten the union nut of the high pressure fuel line (not shown) to the following torque. ... 22 N·m (16 lb ft)
(2) Tighten the banjo bolts of the leak off tubing (not shown) to the following torque. ... 9.0 N·m (80 lb in)
(3) Tighten the nut of the fuel injection nozzle to the following torque. ... 30 N·m (22 lb ft)
Note: When the fuel injection nozzle is installed, put a 2.0 mm (0.08 inch) bead of 4C-5591 Anti-Seize Compound on the first two threads of the union nut.
(4) Wire clip
(5) Seat washer
Note: Remove the original seat washer from the threaded hole for the fuel injection nozzle which is located in the cylinder head. If the original seat washer is not removed, the projection of the nozzle will be incorrect when a new seat washer is installed. Do not reuse the seat washer (5) .
Bench test the fuel injection nozzles at a temperature of 18 to 20 °C (64 to 70 °F).
Note: Use clean SAE J-967 oil (ISO 4113) when you are conducting the test. The oil is available in 5 gallon containers ( 6V-6068 Calibration Fluid ) and 55 gallon containers ( 6V-6067 Calibration Fluid ). If dirty oil is used for the test, the components of the fuel injection nozzle will be damaged.
Refer to Testing And Adjusting, "Fuel Injection Nozzle - Test".
| Service Setting For The Fuel Injection Nozzle | ||
| Engine Model | Code (1) | Minimum and Maximum Pressure |
| 3054 | KN | 29392 kPa (4263 psi) |
| 3054B | KW | 29392 kPa (4263 psi) |
| ( 1 ) | The code letters are stamped on the side of the fuel injector body. The code letters are located below the connection for the nut of the high pressure fuel line. |
Note: Ensure that the new fuel injection nozzles have the same identification code as the nozzles which were originally installed in the cylinder head.
Leakage in 10 seconds ... 0 drops
3056 Engine
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| Illustration 2 | g00755990 |
(1) Bolt
- Tighten the two bolts to the following torque. ... 12 N·m (9 lb ft)
(2) Clamp
(3) Seat washer
Remove the original seat washer from the threaded hole for the fuel injection nozzle which is located in the cylinder head. If the original seat washer is not removed, the projection of the nozzle will be incorrect when a new seat washer is installed. Do not reuse seat washer (3) .
Bench test the fuel injection nozzles at the following temperature. ... 18° to 20°C (64° to 70°F)
| NOTICE |
|---|
Do not use dirty test fluids when you test fuel injection nozzles. Also, do not test fuel injection nozzles unless you have the correct service tools.The use of dirty test fluids and the use of incorrect service tools will result in damage to fuel injection nozzles. |
Caterpillar Inc. recommends the use of SAEJ-967 Calibration Oil (ISO 4113) for testing the fuel injection nozzles. The oil is available in 5 gallon containers ( 6V-6068 Calibration Fluid ) and 55 gallon containers ( 6V-6067 Calibration Fluid ).
Refer to the Testing and Adjusting Module, "Fuel System" topic for additional information.
| Service Setting For The Fuel Injection Nozzle | ||
| Engine Model | Code (1) | Minimum and Maximum Pressure |
| 3056 Naturally Aspirated | NP | 22298 kPa (3234 psi) |
| 3056 Turbocharged | RS | 25338 kPa (3675 psi) |
| ( 1 ) | The code letters are stamped on the side of the fuel injector body. The code letters are located below the connection for the nut of the high pressure fuel line. |
| NOTICE |
|---|
Ensure that the new fuel injection nozzles have the same identification code as the previous fuel injection nozzles in the cylinder head. If the fuel injection nozzles have an incorrect identification code, damage to the engine may occur. |
Leakage in 10 seconds ... 0 drops