Mitsubishi Heavy Industries L2 Service Manual page 72

ENGINE MAIN PARTS
FRONT mark
Rod front mark
Align lugs accurately
each other.
Tightening torque:
31.4 to 34.3 N²m
(3.2 to 3.5 kgf²m)
[23.15 to 25.32 lbf²ft]
Figure 74 Reassembly of piston rings and
connecting rod cap
Oil ring gap
Front
No. 2 ring gap
Figure 75 Proper arrangement of ring gaps
Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
Ring set positions:
No. 1 ring,
No. 2 ring,
oil ring
No. 1 ring gap
Coil expanded
joint of oil ring
ENGLISH
PISTON AND CONNECTION ROD
2. Installation of piston rings
3. Set the piston ring gaps to the proper positions as
shown at right. Apply oil to the rings and cylinder
wall.
4. Using a piston-ring compressor to compress the
rings into the grooves, push the piston-and-
connecting rod assembly down into the cylinder.
Be careful not to break the rings by knocking the
head of piston excessively. Note that the front
marks on the piston and connecting rod are in
direction of the engine front.
"T" mark and OS size mark
"T" mark and OS size mark
OS size identification paint
Color of discrimination:
STD = Without color
0.25 = White
0.50 = Blue
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