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 TM 55-1905-219-14-10
5-43. CYLINDER BLOCK-MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECT (Cont.)
(2) A typical commercially available portable boring bar is illustrated below.
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 cylinder liner to the block will be-
adversely affected if the block isn't smooth.
(4) Wash the block thoroughly after the boring operation.
(5) When an oversize liner is used, stamp the size of the liner on the top deck of the
block adjacent to the liner counterbore. An oversize liner insert must be installed
whenever an oversize liner is used.
5-627
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