C9.3 Marine Engine Caterpillar

Fuel Injection Pump - Remove and Install - Left-Hand Simplex and Duplex

Usage:

C9.3 C93

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A ⁽¹⁾	350-7549	Engine Turning Tool	1
B	294-3031	Fuel Pump Pinch Bolt	1
C	276-7018	Plug/Cap Kit	1

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⁽¹⁾	The tooling is designed to turn the crankshaft in engines that have limited access to the flywheel housing. The tool engages all four bolt heads which are located in the front vibration damper.

Start By:

Remove fuel filter base.

Note: Cleanliness is a critical factor. Clean the exterior of the components before you begin the removal procedure. This action will help to prevent dirt from entering the internal mechanism.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

Note: All high-pressure fuel line connections to be closed with protective caps from Tooling (C).

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Note: Do not remove the valve mechanism cover at any time during this procedure.

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Illustration 1	g03828630

Remove bolts (1), bolts (3), and guard (2).
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Illustration 2 g03828648
Remove plug (4) and the O-ring seal.
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Illustration 3 g03828652
Use Tooling (A) to rotate the crankshaft until the timing mark on the fuel pump is visible through the inspection hole. Install Tooling (B) and tighten to a torque of 9 ± 1 N·m (80 ± 9 lb in).
Note: Mark the damper in relation to the front timing cover as a visual reference to ensure that the crankshaft has not moved while the fuel injection pump is removed.
Note: The pump will not function while Tooling (B) is installed. Running the fuel injection pump with the tooling installed will result in pump damage and system contamination.
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Illustration 4 g03828656
Remove bolts (9) and clamps (8).
Remove clamps (6), hose (7), bolts (10), and tube assembly (5).
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Illustration 5 g03828978
Disconnect hose assembly (11), hose assembly (13), and hose assembly (14).
Remove adapter assembly (12).
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Illustration 6 g03829008
Remove bolt (17) and clamps (16). Disconnect tube assembly (15).
Note: If tube assembly (15) is loosened or removed after tightening, tube assembly (15) is to be discarded and replaced.
Remove tube assembly (18), tube assembly (19), and hose assembly (20).
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Illustration 7 g03829021
Remove bolt (24) and clamps (23). Disconnect tube assembly (25).
Remove adapter assembly (21) and adapter assembly (22).
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Illustration 8 g03829042
Remove lock nuts (26) and adapter assembly (27).
Remove nut (29), stud (30), and plate (28).
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Illustration 9 g03829052
Remove nut (31), nut (33), stud (32), stud (34), and bracket (35).
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Illustration 10 g03829061
Disconnect harness assemblies (36).
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Illustration 11 g03829073
Remove bolts (38) and fuel injection pump (37).
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Illustration 12 g03829088
Remove adapter assembly (39), elbow assembly (40), adapter assembly (41), adapter assembly (42), and adapter assembly (43).

Installation Procedure

Install fuel injection pump (37) in the reverse order of removal.
Note: Remove Tooling (C) before reassembly.
1. Tighten nut (31) and nut (29) to a torque of 28 ± 7 N·m (248 ± 62 lb in).
2. Lubricate the seals of tube assembly (15) with clean engine oil.
3. Hand tighten quill end nut of tube assembly (15) first then rail end nut second.
4. Loosely install clamps (16) and bolt (17).
5. Tighten nut at pump side of tube assembly (15) to a torque of 30 ± 3 N·m (266 ± 27 lb in).
6. Tighten nut at rail side of tube assembly (15) to a torque of 50 ± 4 N·m (37 ± 3 lb ft).
7. Tighten nut at pump side of tube assembly (15) to a final torque of 35 ± 3 N·m (26 ± 2 lb ft).
8. Adjust clamps (16) and fully tighten bolt (17).
9. Lubricate the bore of tube assembly (5) with lubricate that is being sealed.
10. Tighten clamps (6) to a torque of 100 ± 5 N·m (74 ± 4 lb ft).