TM 5-3805-280-24-2
Cylinder Block, Liners, Pistons and Rods
CYLINDER BLOCK, LINERS, PISTONS AND
10
6
RODS SPECIFICATIONS
Item
Measurement
Specification
Piston Rings--4045DF, TF150 and
End Gap (No. 1 Compression)
0.33--0.58 mm (0.013--0.023 in.)
6068DF, TF150 Engines
End Gap (No. 2 Compression)
1.24--1.49 mm (0.049--0.059 in.)
End Gap (No. 3 Oil Control)
0.30--0.56 mm (0.011--0.022 in.)
Piston Rings--4045TF250 and
End Gap (No. 1 Compression)
0.33--0.64 mm (0.013--0.025 in.)
6068TF250 Engines
End Gap (No. 2 Compression)
0.75--1.00 mm (0.030--0.039 in.)
End Gap (No. 3 Oil Control)
0.33--0.64 mm (0.013--0.025 in.)
Cylinder Liner Height
Height above block
0.030--0.100 mm (0.001--0.004 in.)
Maximum permissible difference
0.05 mm (0.002 in.)
between readings within one cylinder
or between adjacent cylinders
Cylinder Liner
Thickness
5.875--6.375 mm (0.2313--0.2510
in.)
Cylinder Liner Packing Step
Dimension
2.0185--2.2865 mm (0.07947--
0.09002 in.)
Piston Ring-to-Groove Clearance--
Maximum Clearance
0.20 mm (0.008 in.)
New Piston Ring (Second and Third
Ring Grooves)
Piston Pin Bore (Small Pin)
ID
34.935--34.945 mm (1.3754--
1.3758 in.)
Piston Pin Bore (Large Pin)
ID
41.285--41.295 mm (1.6254--
1.6258 in.)
Piston Skirt (Measurement taken
Diameter
106.38--106.40 mm (4.188--4.189
bottom of skirt 28 mm (1.1 in.) from
in.)
bottom of piston)
Piston
Height (Measured From Center of
71.64--71.70 mm (2.820--2.823 in.)
Pin Bore to Top of Piston)
Continued on next page
DPSG,OUO1004,230 1910JUL981/6
13-119
