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Make pencil marks on the seating area of
valve head as shown in Fig.
Assemble valves into the valve seat.
Using a suction valve grinder rotate the
valve back and forth, several times.
Remove the valve and check for pencil
marks.
Proper seating erases all the pencil marks.
In case if the pencil marks are not erased,
grind the valve to the seat as below
- Apply fine grinding paste on to the valve
seating area.
:
WARNING
Do not allow the grinding paste to
seep into the valve stem and
valve guide.
Using a suction valve grinder / valve
lapping stick, rotate the valve back and
forth several times.
Lift and turn the valve by half and grind
valve on its seat.
Repeat the process of valve lapping as
explained several times for ensuring
perfect valve seating.
Clean the valve and valve seat thoroughly.
05-66
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