Quantcast FIGURE 4-31. Valve Seat Angle and Width

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TM 55-1905-223-24-1
(10) Use valve seat grinding machine and valve guide arbor set to grind the insert to the angle and
width shown in FIG. 4-31.
f. Replace crosshead guide.
Only remove the crosshead guide if it is bent or
is not to specifications (refer to step b (19)).
Intake Valve Seat Width:
0.120 to 0.140 inch (3.05 to 3.56 mm)
Exhaust Valve Seat Width:
0.060 to 0.100 inch (1.52 to 2.54 mm)
FIGURE 4-31. Valve Seat Angle and Width
(1) Remove crosshead guide with a dowel pin extractor (P/N ST-1134) FIG. 4-32.
FIGURE 4-32. Crosshead Guide Removal.
Crosshead guides are available with an
oversize outside diameter. The bore in the
head must be 0.0050 to 0.0021 inch (0.013 to
0.053 mm) smaller than the outside diameter
of the guide.


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