TM 5-3810-307-24-1-2
Bore or hone the cylinders (per the following
instructions) to the specifications listed below:
Cylinder Bore
Diameter mm [in]
Oversize mm [in]
MIN
MAX
0.25 [0.010]
92.33 [3.635]
92.36 [3.6365]
0.51 [0.020]
92.58 [3.645]
92.621 [3.6465]
0.76 [0.030]
92.84 [3.655]
92.875 [3.6565]
Use a 280 grit hone to produce a cross hatched
surface finished with lines at a 15 to 25 degree angle
with the top of the crankcase.
Use a strong solution of laundry detergent and hot
water to clean the cylinder bore.
Use compressed air to dry.
Use a white, lint-free, lightly oiled cloth to check the
bore for cleanliness.
If grit is still present, clean again.
12-40 Change-1