Inlet and Exhaust Valve Seat Inserts - Remove and Install
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| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 166-7441 | Valve Seat Extractor Tool Group | 1 |
| B(1) | 9U-6898 | Valve Seat Driver (Exhaust) | 1 |
| 9U-6897 | Valve Seat Driver (Inlet) | 1 | |
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| (1) | Part of 9U-7530 Engine Tool Group |
Start By:
- Remove the inlet and exhaust valves.
- Use Tooling (A) to remove valve seat insert (1) from the cylinder head.
- Clean the bores in the cylinder head for the valve seat inserts. Remove any rough areas from the bores.
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| |
| Illustration 1 | g01082582 |
- Lower the temperature of new valve seat insert (1).
- Use Tooling (B) to install the new valve seat insert in the cylinder head.
Note: Do not machine the prefinished valve seat inserts in order to correct the valve projection. Excessive valve projection indicates that the valve seat insert is not seated or material was not cleaned from the bottom of the counterbore.
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| |
| Illustration 2 | g01079028 |
End By:
- Install the inlet and exhaust valves.
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