| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 5F-4764 | Prybar | 1 |
| B | 339-9352 | Inj. Sys Cap Kit | 1 |
| 265-2256 | Wipers | 1 | |
Start By:
- Remove the valve cover.
| 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. |
| NOTICE |
|---|
|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
 |
|
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 openings 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).
Show/hide table
Illustration 2 g02087690 - 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).
Show/hide table
Illustration 3 g02087670 - Disconnect harness assembly (7) from electric unit injector (8). Remove bolt (9) and the washer.
- Place an identification mark on electronic unit injector (8) for installation purposes. Each electronic unit injector must be reinstalled in the original location. Use Tooling (A) to pry electronic unit injector (8) out by the retaining collar.
Show/hide table
Illustration 4 g01410032 - Check O-ring seals (10) and (11) on electronic unit injector (8).
| |
| Illustration 1 | g02087086 |
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| B | 339-9352 | Inj. Sys Cap Kit | 1 |
| 265-2256 | Wipers | 1 | |
| C | 312-3204 | Brush | 1 |
Note: When Tooling (B) is removed be careful to prevent contamination.
| NOTICE |
|---|
|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- If necessary, install new O-ring seals (10) and (11) onto electronic unit injector (8). Apply clean engine oil to O-ring seals (10) and (11).
Show/hide table
Illustration 6 g02087670 Show/hide table
Illustration 7 g03372741 Show/hide table
Illustration 8 g03372740 Apply clean engine oil. - Check the cleanliness of the sealing surface for the unit injector in the cylinder head. If necessary, use Tooling (C) to clean the sealing cone on the unit injector.
- Install electronic unit injector (8). Tighten bolt (9) to a torque of
30 - 50 N·m (22 - 38 lb ft) . - Remove bolt (9).
- 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. - Connect harness assembly (7) onto electronic unit injector (8).
Show/hide table
Illustration 9 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).
| |
| Illustration 5 | g01410032 |
End By:
- Install the valve cover.