3056E Industrial Engine Caterpillar

This procedure must be done before any of the following reasons:

• Removal of the fuel injection pump

• Fasteners that hold the fuel injection pump to the front housing or the fasteners that hold the gear to the fuel injection pump are loosened.

The fuel injection pump is timed at four degrees after top center on the compression stroke of the number one cylinder. The timing is important in order to conform to the correct emissions.

1. Set the number one piston at top center on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for the No. 1 Pistion" for the procedure.

2. Remove the number two fuel injection nozzle. Refer to Disassembly and Assembly, "Fuel Injection Nozzles - Remove" for the procedure.

   Note: Number five fuel injection nozzle can be used, if number five fuel injection nozzle is more suitable for the application.

3. Ensure that the seat washer for the fuel injection nozzle is removed.

4. Check the bore of the fuel injection nozzle and check the seat for the fuel injection nozzle.
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   Illustration 1	g01241922
   Install Tooling (B) to the bore of the fuel injection nozzle 226-2270 tool (piston displacement). (1) Gland nut (2) Alignment pin (3) Main body (4) Probe

5. Install the tooling (B) to the bore of the fuel injection nozzle.

6. Align alignment pin (2) of main body (3) to the slot in the fuel injection nozzle hole.

7. Place main body (3) into the fuel injection nozzle hole and install gland nut (1).

8. Apply clean engine oil to probe (4).

9. Insert probe (4) into main body (3). Then, gently lower probe (4) onto the piston crown.
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   Illustration 2	g01241981
   Tooling (B) in position. (5) Top of the main body (6) The probe is aligned with the main body. (7) Machined face of the probe

10. Rotate the crankshaft in the direction of engine rotation until the machined face of the probe (7) aligns with the top of the main body (5).

    Note: When step 10 is complete do not rotate the crankshaft until the fuel injection pump is installed on the engine.

11. The number one piston is at four degrees after top center compression stroke.

12. Remove the water pump. Refer to Disassembly and assembly, "Water Pump - Remove and Install" for the procedure.
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    Illustration 3	g01241938

13. Install 150-3992 Timing Pin to the hole (8) in the fuel pump.

    Note: The Timing Pin should be installed to the fuel pump by hand pressure.

14. Remove probe (4) from the main body of tooling (B).

15. Remove gland nut (1) on tooling (B).

16. Remove the tooling (B) from the cylinder head.

17. Replace the fuel injection nozzle. Refer to Disassembly and Assembly, "Fuel Injection Nozzles - Install". install the water pump. Refer toDisassembly and assembly, "Water Pump -Removal and Install".