TM 5-4310-393-14
Max.
Item
Size
Size
Perm.
Remarks
(In)
(mm)
Wear (in)
Undersize.
1.6339
415
Piston
Piston diameter.
Oversize.
Length of piston.
2.8724
+0.1968/
+0.0393
3.2283
72.96
+0.5/
+0.1
82.0
Cylinder
Bore diameter. 2 8744
Roughness (RA).
Oversize
2.8740/
0.0197/
+0.0393
73 00/
73.01
0.9/1.3
+0 5/
+1.0
Up to
0.0006 in
0.15mm
Table 5-4. Piston Ring Data
Groove No.
Designation
Dimension (mm)
Gap (mm)
Nom.
Max.
I
R-ring (barrel-machined) if CRB
Standard
Oversize
73 x 2
74 x 2
0.20
0.45
0.8
0.8
II
M-compr-ring(taper faced)
Standard
Oversize
73 x 2
74 x 2
0.25
0.45
1.5
1.5
III
G-ring (double beveled oil control ring)
Standard
Oversize
73 x 4
74 x 4
0.20
0.45
1.5
1.5
5-6.
DIESEL ENGINE.
A
INTRODUCTION This paragraph contains repair and maintenance instructions for the Direct Support Level on the
Diesel Engine
5-5
