Special tool
 | Valve Spring Compressor 303-361 (21-155) |
 | Adapter for 21-155 303-361-02 (21-155-02) |
 | Valve stem oil seal remover 303-374 (21-160) |
| Name | Specification |
| Lubrication | ESR-M99C80-A |
| Paste for lapping (grinding) valves | available |
| Motor oil | WSS-M2C912-A1 |
Removal
1.
NOTE: Place the cylinder head on a clean supporting surface on a work bench.
Remove the cylinder head. For more information, refer to the Cylinder Head chapter in this section.
2.
NOTE: Insert wooden wedges into the combustion chamber recesses in the cylinder head so that the valves are held in place when removed.
Remove the valve.
- 1. Compress the valve spring.
- 2. Remove the breadcrumbs.
3.
NOTE: Place all items in order.
Remove the valve springs.
4. Remove the valve stem oil seal.
- 1.Insert the special tool.
- 2.Turn the special tool clockwise and pull it out.
5. Repeat the removal procedure on the remaining valves.
Installation
1.
NOTE: Treat valves according to the grinding compound manufacturer's recommendations.
NOTE: Install in the order they were removed.
Regrind the valves, using lapping paste for this purpose.
2. Clean all parts thoroughly to remove all traces of abrasive.
3. Apply lubricant to the valve stem and insert the valve into place.
4. Install the oil seal onto the valve stem.
- Cover the grooves on the valve stem with a bushing to install the valve stem oil seal.
- Slide the oil seal onto the valve stem and remove the oil seal installation sleeve from the valve stem.
5.
NOTE: Check that the valve keepers are installed correctly.
Install the valve spring.
- Insert the valve spring and spring retainer.
- 1. Compress the valve spring.
- 2.Install the crackers.
6. Repeat the installation procedure on the remaining valves.
7. Install the cylinder head. For more information, refer to the Cylinder Head chapter in this section.
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