Engine Unit, Repair

ENGINE UNIT

COMPONENTS:

REPAIR
1. REPAIR INTAKE VALVE SEAT

NOTICE: Keep the lip free from foreign matter.

a. If the seating is too high on the valve face, use 30° and 45° cutters to correct the seat.

b. If the seating is too low on the valve face, use 60° and 45° cutters to correct the seat.
c. Hand-lap the valve and valve seat with an abrasive compound.
d. Check the valve seating position.
2. REPAIR EXHAUST VALVE SEAT

NOTICE: Keep the lip free from foreign matter.

a. If the seating is too high on the valve face, use 30° and 45° cutters to correct the seat.

b. If the seating is too low on the valve face, use 45° and 75° cutters to correct the seat.
c. Hand-lap the valve and valve seat with an abrasive compound.
d. Check the valve seating position.