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 TM 55-1905-223-24-3
FIGURE 4-12. Crosshead Inspection Areas.
1
Use a 29/64 inch drill to cut the bore. Cut the oversize bore to the same depth as the original bore.
2
Use a 15/32 reamer to ream the bore. Apply lubricating oil to the reamer as the bore is being reamed.
3
Install the pin (crosshead guide) as in steps (e) or (f) ofthis procedure.
i. Cylinder head water holes. Inspection and repair.
(1) Inspection. The surface of the cylinder head around the water holes must not have any scratches, cracks or
corrosion deeper than 0.003 inch (0.08 mm). There must not be any defect which extends more than 3/32 inch
(2.38 mm) from the edge of the water hole.
(2) Repair.
(a) To repair the water holes, use the following tools from the water hole counterboring tool kit:
Bushing Plate
Drive adapter
Adapter screw
Locating pin
Stop collar
Allen wrench
Counterbore cutter
Gauge block
4-41
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