Grind valve face to remove any indications of wear.
Find new gage diameter on valve face. Gage Dia.
=
1.880
3.
Grind stem tip to regain 4.246 to 4.252 distance stem tip to gage diameter.
4.
For approximate amount to be removed from stem tip, measure from position of new gage diameter to
valve stem tip. Subtract 4.249 from new length, the remainder will be the amount to be removed
from
5.
After grinding, measure overall length of valve
if
new overall length is less than4.352 long discard valve
and replace with new.
80%
WELD CONTACT
4.246
FROM STEM TIP
4.252
TO
GAGE DIM LlNE
GREATER
AFTER GRINDING
THIS POINT
WILL
CHANGE AFTER
GRINDING INCREASING DISTANCE
FROM STEM TIP
TO
GAGE
DIM.
LlNE
GRIND STEM TIP
TO
REGAIN DIS-
TANCE OF
4.246TO
4.252
FIGURE
72-26-28C.
INTAKE VALVE REFACING.
DECEMBER
1992
7'2-20-17
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