ENGINE 3-29
When installing the solid pilot, rotate it slightly. Seat the pilot
snugly. Install the 45 cutter, attachment and T-handle.
INITIAL SEAT CUT
Descale and clean up the seat with the 45 cutter. Rotate the
cutter one or two turns.
Measure the valve seat width
W after every cut.
If the valve seat is pitted or burned, use the 45 cutter to con-
dition the seat some more.
NOTE:
Cut only the minimum amount necessary from the seat to pre-
vent the possibility of the valve stem becoming too close to the
camshaft.
TOP NARROWING CUT
If the contact area
W is too high on the valve, or if it is too
wide, use the 15 cutter to lower and narrow the contact area.
Too high or too wide contact surface
on the valve
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