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 TM 55-1905-219-14-10
5-20. CYLINDER BLOCK-MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECT (Cont)
(2)
A typical commercially available portable boring
bar is illustrated. Instructions on correct use
of the boring bar are provided by the manufacturer.
(3)
After boring the block for an oversize cylinder
liner, check the bore finish to be sure it is
smooth (120 RMS). Heat transfer from the cyl-
inder liner to the block will be adversely
affected if the block isn't smooth.
(4)
Wash the block thoroughly after the boring oper-
ation.
(5)
When an oversize liner is used, stamp the size
of the liner on the top deck of the block adja-
cent to the liner counterbore. An oversize
liner insert must be installed whenever an
oversize liner is used.
5-369
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