CYLINDER HEAD
Page 4A-36 90-857046R1 NOVEMBER 2001
Valve Refacing Steps
Condition: The valve seat is centered on valve face but it is too wide.
Valve Seat Cutter Set Desired Results
Use
15°
Cutter
To reduce valve seat
Lightly
60°
Cutter
width
Condition: The valve seat is in the middle of the valve face but it is too narrow.
Valve Seat Cutter Set Desired Results
Use 45°
Cutter To achieve a uniform valve
seat width
Condition: Valve seat is too narrow and it is near valve margin.
Valve Seat Cutter Set Desired Results
Use
15°
Cutter, First
To center the seat and to
45°
Cutter
achieve its Width
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