INSPECT (Cont) - TM-55-1905-220-14-100372

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INSPECT (Cont)

TM-55-1905-220-14-10 Landing Craft Utility LCU 1671-1679 NSN 1905-01-009-1056 Manual

INSPECT (Cont)

TM 55-1905-220-14-10

5-20. 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 desir-

able. 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

O.D. Size

A Liner-to-

I.D. Size of

Block Clearance of

4.6260 inch

Standard

.000 inch to .0025 inch

4.6275 inch

4.6270 inch

.001 inch Oversize

.000 inch to .0025 inch

4.6285 inch

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 inch, 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 inch

.005 inch Oversize

4.6325 inch

4.632 inch

4.636 inch

.010 inch Oversize

4.6375 inch

4 637 inch

4.646 inch

.020 inch Oversize

4.6475 inch

4.647 inch

4.656 inch

.030 inch Oversize

4.6575 inch

4.657 inch

5-368