TM 5-6115-400-35
Table 1. Engine Repair and Replacement Standards-Continued
Manufacturer'
s
Maximum
Component
dimensions and
Desired
allowable
tolerance in
clearance
wear and
inches
clearance
Min.
Max.
Min.
Max.
Outside diameter at machined area below flange .........
5.8710
5.8730
Outside diameter at packing ring locations .................. -
5.7780
5.7800
Outside diameter of sleeve flange .................................
6.2170
6.2210
Cylinder block to sleeve clearance-sleeve lower
O.D. ........................................................................ -
------------
------------
0.0010
0.0050
Cylinder block to sleeve clearance at machined
area below flange ......................................................
------------
------------
0.0010
0.0050
Cylinder block to sleeve clearance at sleeve flange .......
------------
------------
0.0080
0.0170
Fire wall height above cylinder flange sleeve .................
------------
------------
0.0370
0.0400
Cylinder sleeve flange thickness ...................................
0.4630
0.4650
Flange projection above cylinder block with sleeve
installed .....................................................................
------------
------------
0.0020
0.0050
Flange height adjusting shims available-0.005 in.,
0.008 in., 0.010 in., 0.015 in., and 0.020 in.
Cylinder block:
Counterbore diameter for cylinder sleeve flange ............
6.2290
6.2340
Depth of counterbore .....................................................
0.4600
0.4620
Bore for cylinder sleeve-top ......................................... -
5.8740
5.8760
Bore for cylinder sleeve-bottom .....................................
5.7810
5.7830
Bore for camshaft bearings ...........................................
2.7470
2.7480
Bearing bore in cylinder block (less bearing; cap
in place; tightened to specified torque) ......................
4.3743
4.3750
Piston:
Note. Combustion chamber is in piston
Combustion chamber inside dia. ...................................
3.5570
3.5610
Combustion chamber depth ..........................................
0.8810
0.8850
Compression pressure (minimum) at sea level, 600
rpm, (hot) pressure- 500 psi. Differential be-
tween cylinders in an engine not to exceed 25
psi
Material-Aluminum alloy
Length .............................................................7.000 in.
Diameter of bottom skirt measured at right
angle to piston pin .....................................................
5.2430
5.2440
Bore for piston pin (cold) ...............................................
2.0018
2.0020
Measurement from center of piston pin bore to top
of piston ....................................................................
4.2510
4.2550
Piston skirt-to-sleeve clearance at skirt bottom,
right angle to piston pin .............................................
0.0070
0.0090
Piston pin:
Type-Full Floating
Length .......................................................................
4.3650
4.3750
Diameter ...................................................................
2.0015
2.0017
Fit of pin at room temperature .......................................
------------
------------
0.0001
0.0005
Inside diameter of connecting rod bushing after
reaming .....................................................................
2.0027
2.0033
Piston pin to connecting rod bushing clearance ............
-------------
------------
0.0010
0.0018
Piston rings:
Location of rings
Top groove-compression ring
2nd groove-compression ring
3rd groove-compression ring
4th groove-oil control-ventilated w/spring
5
