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 TM 55-1905-221-14-4
6-29. CYLINDER BLOCK - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION/ITEM
ACTION
REMARKS
INSPECT (Cont)
and smoother. Do not
hone as long as 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 the 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
too long will cause the
bore to become irregular.
Where and how much to
hone can be judged by
feel. A heavy cut in
a distorted bore produces
a steady drag on the
hone and makes it
difficult to feel the
high sports. Therefore,
use a light cut but with
frequent stone adjustments.
(5) Wash the cylinder block
thoroughly after the
honing operation is
completed.
6-528
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