| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-220-14-4
3-40.1. PISTON - MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
REASSEMBLY (Cont)
ENGINE PARTS
MINIMUM
MAXIMUM
LIMITS
(Standard Size, New)
(inches)
(cm)
(inches)
(cm)
(inches)
(cm)
Piston:
Height (centerline of
bushing to top)..............................
3.5430
8.9992
3.5480
9.0119
Diameter (above compres-
sion rings)................................ .....
4.2225
10.7252
4;2255
10.7328
Diameter (at skirt).........................
4.2428
10.7767
4.2450
10.7823
Clearance-piston skirt-
to-liner ................................ ..........
.0045
.0114
.0083
.0211
.0120
.0305
Out-of-round................................ .
.0005
.0013
Taper ................................ ...........
.0005
.0013
Compression rings:
Gap (top-fire ring).........................
.0230
.0584
.0380
.0965
.0600
.1524
Gap (No. 2, 3 and 4).....................
.0180
.0457
.0430
.1092
.0600
.1524
Clearance-ring-to-groove:
No. 1 (top-fire
ring)................................ ..............
.0040
.0102
.0070
.0178
.0180
.0457
No. 2 ................................ ............
.0100
.0254
.0130
.0330
.0220
.0559
No. 3 and 4................................ ...
.0040
.0102
.0070
.0178
.0130
.0330
Oil control rings:
Gap ................................ ..............
.0080
.0203
.0230
.0584
.0430
.1092
Clearance................................ .....
.0015
.0038
.0055
.0140
.0080
.0203
A new cylinder liner has
an inside diameter of
4.2495 to 4.2511 inch
(10.7937 to 10.7978 cm).
The piston-to-liner
clearance, with new parts,
will vary with the partic-
ular piston diameter. A
maximum clearance of .012
inch (0.031 cm) is allow-
able with used parts.
With the cylinder liner
installed in the cylinder
block, hold the piston
3-816
|
||
|
||
