Start By:
- Remove the high-pressure fuel rail.
- Remove valve cover.
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 6V-6195 | Interlocking Joint Pliers | 1 |
| B | 339-9352 | Inj. Sys Cap Kit | 1 |
| 265-2256 | Wipers | 1 | |
| NOTICE |
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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. |
| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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Do not open the high pressure fuel system without allowing the fuel system to purge. After the engine has shut down, allow the fuel system to purge for ten minutes. This operating fuel system contains high pressure. Exposure to high pressure fuel can result in personal injury. |
Note: Use Tooling (B) to cap tube assemblies, fittings, ports, and any opening in the fuel system in order to prevent contamination.
Note: Do not remove all the quills in order to maintain the alignment of the rail. Remove one at a time and replace before the removal of the next. If necessary, replace with new quill.
- Remove bolt (3) and the washer. Remove tube assembly (1). Disconnect harness assembly (2).
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Illustration 2 g03373565 - Apply clean engine oil to area (X). Repeat for the opposite collar. Remove bolts (4) and bolts (6). Remove tube assembly (5).
Note: Replace with new bolts (4) and (6)
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Illustration 3 g02087090 - Use Tooling (A) to remove flow limiter (7) from the fuel rail.
Note: Apply protective caps to flow limiter (7 ) in order to prevent contamination. Clean Tooling (A) before using in order to avoid contamination in the fuel system.
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| Illustration 1 | g02087086 |
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 6V-6195 | Interlocking Joint Pliers | 1 |
| B | 339-9352 | Inj. Sys Cap Kit | 1 |
| 265-2256 | Wipers | 1 | |
Note: When Tooling (B) is removed be careful to prevent contamination.
- Apply clean engine oil to the sealing face of the flow limiter and the fuel rail.
Note: Use a clean plastic squirt bottle to apply clean engine oil. Do not apply clean engine oil by hand.
- Use Tooling (A) to install flow limiter (7) into the fuel rail.
Note: Clean Tooling (A) before using in order to avoid contamination in the fuel system.
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Illustration 5 g03373883 Show/hide table
Illustration 6 g03373567 Show/hide table
Illustration 7 g03373569 - Remove bolt (9) from unit injector (8).
- Replace external O-ring seals on quill tube assembly (5). Apply clean engine oil to Area (X). Install quill tube assembly (5).
Note: Do not allow the quill tube assembly (5) to contact any part of the engine while assembling.
- Hand tighten bolts (4). Hand tighten bolts (6).
- Install bolts (9). Tighten bolt (9) to a torque of
10 N·m (89 lb in) . - Evenly tighten new bolts (4) to a torque of
20 N·m (177 lb in) in increments no greater than 90 degrees. Evenly tighten new bolts (6) to a torque of20 N·m (177 lb in) in increments no greater than 90 degrees. - Tighten injector bolt (9) to a torque of
100 ± 20 N·m (74 ± 15 lb ft) . - Evenly tighten new bolts (4) to a torque of
40 ± 5 N·m (30 ± 4 lb ft) in increments no greater than 45 degrees. Evenly tighten new bolts (6) to a torque of40 ± 5 N·m (30 ± 4 lb ft) in increments no greater than 45 degrees.Show/hide table
Illustration 8 g02087086 - Connect harness assembly (2). Replace the O-ring seals on both ends of tube assembly (1). Install tube assembly (1). Install the washer and bolt (3).
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| Illustration 4 | g02087090 |
End By:
- Install the high-pressure fuel rail.
- Install valve cover.