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 TM 55-1905-221-14-4
6-29. CYLINDER BLOCK - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION/ITEM
ACTION
REMARKS
INSPECT (Cont)
d. Check the cylinder block
bore:
(1) Visually check the contact
area as revealed by the
honed surface. There
must not be any low spots
which are larger in area
than a half dollar.
(2) Measure the entire bore
of each cylinder with
cylinder bore gage J5347
which has a dial indicator
calibrated in .0001 inch
increments. The standard
block bore is 4.6260 inch
to 4.6270 inch.
(3) First, place the bore
gage in the master ring
gage J5580-1 which has
an I.D. of 4.6270 inch
and set the dial to zero.
Next, rotate the dial
clockwise .0005 inch to
give a zero dial indicator
setting of 4.6265 inch.
6-529
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