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 TM 55-1905-219-14-10
5-43. CYLINDER BLOCK-MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECT (Cont.)
e. Fit the liner to the cylinder block: The liner-to-block clearance with new parts is
zero to .002 inch. With used parts, the maximum liner- to-block clearance is .0025
inch. Examine the block bore measurements to determine if standard or .001 inch
oversize O.D. liners can be used, or if the cylinder block should be bored oversize.
A light push fit between the liner and the block is desirable. However, a good fit
between the cylinder liner and block may be obtained by comparing the average
bore sizes in Table below.
For Average
Use Liner
To Give
Block Bore
A Liner-to-
I.D. Size of
O.D. Size
Block Clearance of
4.6260 inches
Standard
.000 inch to .0025 inch
4.6275 inches
4.6270 inches
.001 inch Oversize
.000 inch to .0025 inch
4.6285 inches
f.
If necessary, bore the cylinder block as follows: (1) Each bore in a used block must
not be out-of- round or tapered more than .002 inch. If the average block bore is
over 4.6285 inches, the block should be bored oversize as shown below.
Block Boring
Liner O.D.
Maximum Block Bore
Dimensions
Size
I.D. on a Used Block
4.631 inches
.005 inch Oversize
4.6325 inches
4.632 inches
4.636 inches
.010 inch Oversize
4.6375 inches
4.637 inches
4.646 inches
.020 inch Oversize
4.6475 inches
4.647 inches
4.656 inches
.030 inch Oversize
4.6575 inches
4.657 inches
5-626
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