INSPECT (Cont) - TM-55-1905-220-14-110181

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INSPECT (Cont)

TM-55-1905-220-14-11 Landing Craft Utility LCU 1671-1679 NSN 1905-01-009-1056 Manual

INSPECT (Cont)

TM 55-1905-220-14-11

5-79. CYLINDER BLOCK - MAINTENANCE INSTRUCTIONS. (Continued).

LOCATION

ITEM

ACTION

REMARKS

INSPECT (Cont)l

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 liner and block is desirable.

However, a good fit between the cylinder liner and

block may be obtained by comparing 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

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

5-1081