TM 5-3895-346-14
SPECIFICATIONS
ENGINE OVERHAUL
MINIMUM
MAXIMUM
LIMITS
ENGINE PARTS (Standard Size, New)
(inch)
(inch)
(inch)
Depth of flange BELOW block ..........................................................
0.0465
0.0500
0.0500
Variation in depth between adjacent liners .........................................
0.0020
0.0020
Piston:
Diameter (at skirt):
Nonturbocharged engines............................................................
3.8699
3.8721
Clearance--piston skirt-to-liner:
Nonturbocharged engines............................................................
0.0031
0.0068
0.0100
Out-of-round................................................................................
0.0005
Taper ..........................................................................................
0.0005
Inside diameter--piston pin bushing .............................................
1.3775
1.3780
Compression rings:
Gap (chrome ring) . .....................................................................
0.0200
0.0460
0.0600
Gap (cast iron ring)......................................................................
0.0200
0.0360
0.0600
Clearance--ring-to-groove:
Top (No. 1) ..................................................................................
0.0030
0.0060
0.0120
No. 2 . .........................................................................................
0.0070
0.0100
0.0140
No. 3 and 4 .................................................................................
0.0050
0.0080
0.0130
Oil control rings:
Gap .............................................................................................
0.0100
0.0250
0.0440
Clearance--ring-to-groove............................................................
0.0015
0.0055
0.0080
Piston Pins
Diameter............................................................................................
1.3746
1.3750
Clearance--pin-to-piston bushing .......................................................
0.0025
0.0034
0.0100
Clearance--pin-to-conn. rod bushing ..................................................
0.0010
0.0019
0.0100
Connecting Rod
Length--center-to-center ....................................................................
8.7990
8.8010
Inside diameter (upper bushing).........................................................
1.3760
1.3765
Normal side clearance (in-line engine) ...............................................
0.0030
0.0120
Crankshaft
Journal diameter--main bearing (in-line engine) .................................
2.9990
3.0000
Journal diameter--conn. rod bearing (in-line engine) ..........................
2.4990
2.5000
Journal out-of-round ..........................................................................
0.00025
0.0030
Journal taper ....................................................................................
0.0005
0.0030
199