Disassembly Procedure
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 1S-0258 | Soft Faced Hammer | 1 |
Start By:
- Remove the valve lifter group. Refer to Disassembly and Assembly, "Valve Lifter - Remove".
Note: Use 8T-0447 Dial Calipers to measure the dimensions in the following procedure.
| NOTICE |
|---|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- Use a paint stick to identify valve lifters (6) so that the valve lifters can be installed in the same position.
Note: Refer to Disassembly and Assembly, "General Information (Reference Material)" for more information.
 | |
| Illustration 1 | g01212600 |
 |
Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
 |
- Use Tooling (A) to remove valve lifters (6) and unit injector lifter (8) from guide (5) .
- Remove O-ring seals (1) and inserts (2) from the upper end of valve lifters (6) and unit injector lifter (8) .
| NOTICE |
|---|
Valve lifter guide springs may be installed on valve lifters only once. If a valve lifter guide spring is removed from a valve lifter, the guide spring must be replaced with a new guide spring. If the guide spring is not removed from the valve lifter after the lifter is removed from the valve lifter guide, the valve lifter can be installed in the original location without having to replace the valve lifter guide spring. |
Note: Inspect guide springs (3) and (4) for wear or damage.
- Inspect the valve lifter bores in guide (5) for roughness or wear. The diameter of the valve lifter bores is 42.00 ± 0.02 mm (1.654 ± 0.001 inch). The diameter of the unit injector lifter bore is 56.00 ± 0.02 mm (2.205 ± 0.001 inch).
- Be sure that the lubrication passages in the guide for the valve lifters are not obstructed.
- Inspect each lifter body for roughness or wear. The diameter of valve lifters (6) is 41.91 ± 0.010 mm (1.650 ± 0.0004 inch). The diameter of unit injector lifter (8) is 55.90 ± 0.010 mm (2.201 ± 0.0004 inch).
- Inspect rollers (7) for wear or damage and looseness on valve lifters (6). Inspect roller (9) for wear or damage and looseness on unit injector lifter (8) .
- Be sure that the lubrication passages in unit injector lifter (8) are not obstructed.