PROCEDURE
REPAIR INTAKE VALVE SEAT
Releasing the seat cutter pressure gradually helps to make the intake valve seat faces smoother.
If the seating is too high on the valve face, use 20° and 45° cutters to correct the seat.
*1 | 1.0 to 1.2 (0.0394 to 0.0472) |
*2 | mm (in.) |
If the seating is too low on the valve face, use 60° and 45° cutters to correct the seat.
*1 | 1.0 to 1.2 (0.0394 to 0.0472) |
*2 | mm (in.) |
Hand lap the intake valve and intake valve seat with an abrasive compound.
Check the valve seating position.
REPAIR EXHAUST VALVE SEAT
Releasing the seat cutter pressure gradually helps to make the exhaust valve seat faces smoother.
If the seating is too high on the valve face, use 20° and 45° cutters to correct the seat.
*1 | 1.2 to 1.6 (0.0472 to 0.0630) |
*2 | mm (in.) |
If the seating is too low on the valve face, use 60° and 45° cutters to correct the seat.
*1 | 1.2 to 1.6 (0.0472 to 0.0630) |
*2 | mm (in.) |
Hand lap the exhaust valve and exhaust valve seat with an abrasive compound.
Check the valve seating position.