TM 9-2815-225-34&P
3-35. CYLINDER HEAD AND VALVE REPAIR (Contd)
LOCATION/ITEM
ACTION
REMARKS
c. Inspection and Repair (Contd)
16.
Four valve crosshead
a. Inspect each for straightness
Replace valve crosshead guides (8)
guides (8)
and for being at a right angle to
that are not straight or square to
surface of cylinder head (9).
cylinder head (9). (Refer to
step 16d for replacement.)
b. Measure outside diameter.
Use suitable micrometer. Replace
if less than wear limit shown
below. (Refer to step 16d for
replacement.)
Wear Limit ................................................................. .0.4320 in. (10.973 mm)
New Minimum ............................................................. 0.4330 in. (10.998 mm)
New Maximum ............................................................ 0.4335 in. (11.011 mm)
c. Using suitable micrometer,
Replace if not within 1.860-
measure protrusion.
1.880 in. (4.724-4.775 cm). (Refer
to step 16d for replacement.)
d. Replace valve crosshead
Do not replace unless bent or not
guides (8) as follows:
within wear limits.
(1) Remove guide (8) from cylinder
Use dowel pin extractor (ST-1134)
head (9).
(41). Discard valve crosshead
guide (8).
(2) Clean crosshead guide (8)
holes thoroughly.
(3) Install new valve crosshead
Use arbor press and crosshead
guide (8) on cylinder head (9).
guide spacer (ST-633) (42). Ensure
height of valve crosshead guide (8)
is between 1.860-1.880 in. (4.724-
4.775 cm) after installation.
17.
Two dowels (11)
Inspect for cracks, breaks,
Replace if damaged or loose.
bending, or looseness.
3-124
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