Inspection; Reboring Of Cylinder - Mitsubishi L3E Service Manual

ENGINE MAIN PARTS
Figure 84 Measuring cylinder bore
Measuring position
Figure 85 Cylinder bore measuring positions
Figure 86 Measuring piston diameter
Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
Approx. 10 mm [0.40 in.]
from upper end
Front
Center
Lower
Direction of measuring

17.2 Inspection

Inspect the cylinder block. If it is found defective, repair
or replace the block.
Model
L2A, L3A
L2C, L3C
L2E, L3E
Table 35 Cylinder bore (mm [in.])

17.3 Reboring of cylinder

When reboring a cylinder, use the following procedure :
1. Selecting a piston
Piston service size
0.25 OS or 0.50 OS
2. Measuring the piston diameter
3. Reboring finish dimension =
[Piston OD] + [Clearance] –
[Honing allowance (0.02 mm [0.00079 in.])]
Description
Clearance
(between piston and
cylinder)
Table 36 Oil clearance (mm [in.])
CAUTION
When it is necessary for a cylinder to be rebored to
the next over size, other cylinders must also be
rebored to the same over size.
ENGLISH
CYLINDER BLOCK
Standard Service limit
65 +0.03
0
+0.0012
[2.5591 ] [+0.0276]
0
+0.03
70
0
+0.0012
[2.7559 ] [+0.0276]
0
+0.03
76
0
+0.0012
[2.9921 ] [+0.0276]
0
Standard
0.071 to 0.084
[0.00280 to 0.00331]
(A to D)
+0.7
+0.7
+0.7
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