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 TM 55-1905-219-14-11
5-79. CYLINDER BLOCK - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECT (Cont)
(2) Insert the hone in the bore and adjust the
stones snugly to the narrowest section. When
correctly adjusted, the hone will not shake
in the bore, but will drag freely up and down
the bore when the hone is not running.
(3) Start hone and "feel out" bore for high spots
which will cause an increased drag on the stones.
Move hone up and down the bore with short, over-
lapping strokes about 1 inch (2.54 cm) long.
Concentrate on the high spots in the first cut.
As these are removed, drag on the hone will be
lighter and smoother. Do not hone as long at the
air inlet port area as in the rest of the bore
because this area, as a rule, cuts away more
rapidly. Feed lightly to avoid an excessive
increase in bore diameter. Some stones cut
rapidly even under low tension.
(4) When the bore is fairly clean, remove the
hone, inspect the stones, and measure the
bore. Determine which spots must be honed
most. Moving the hone from the top to the
bottom of the bore will not correct an out-
of-round condition. To remain in one spot
5-1076
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