CYLINDER HEAD > REPAIR

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1. REPAIR INTAKE VALVE SEAT


A077502E03

NOTICE:
Releasing the seat cutter pressure gradually helps to make the intake valve seat faces smoother.

  1. If the seating is too high on the valve face, use 20° and 45° cutters to correct the seat.



    A077503E04

  1. If the seating is too low on the valve face, use 60° and 45° cutters to correct the seat.

  1. Lap the intake valve and intake valve seat with an abrasive compound by hand.

  1. Recheck the valve seating position.



2. REPAIR EXHAUST VALVE SEAT


A077502E04

NOTICE:
Releasing the seat cutter pressure gradually helps to make the exhaust valve seat faces smoother.

  1. If the seating is too high on the valve face, use 20° and 45° cutters to correct the seat.



    A077503E03

  1. If the seating is too low on the valve face, use 60° and 45° cutters to correct the seat.

  1. Lap the exhaust valve and exhaust valve seat with an abrasive compound by hand.

  1. Recheck the valve seating position.