Inspecting And Repairing Cylinder Block, Crankshaft, Piston And Oil Pan; Measuring Cylinder Inside Diameter - Mitsubishi L Series Service Manual

4. Inspecting and repairing cylinder block, crankshaft, piston and oil pan

4.1 Measuring cylinder inside diameter

Use a cylinder gauge to measure the inside diameter and
cylindericity of the cylinder at three locations in the A and B
directions as shown in the illustration.
If any one of the cylinders exceeds the repair limit, bore all
the cylinders and replace the pistons and piston rings with
oversize ones.
Replace the cylinder block if the limit is exceeded.
Item
Cylinder inside diameter
Cylindericity of cylinder
Nominal
ø 65 mm
L2A, L3A
[2.56 in.]
ø 70 mm
L2C, L3C
[2.76 in.]
ø 76 mm
L2E, L3E
[2.99 in.]
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INSPECTION AND REPAIR OF BASIC ENGINE
Measuring cylinder inside diameter
Measuring
positions
Measuring position of cylinder inside diameter
Standard
65.00 to 65.03
[2.5591 to 2.5602 in.]
70.00 to 70.03 +0.7 mm
[2.7559 to 2.7571 in.] [+0.0276 in.]
76.00 to 76.03
[2.9921 to 2.9933 in.]
0.01 mm
[0.0004 in.] or less
Approx. 10 mm [0.39 in.]
from top end
Front
Center
Bottom
Measuring
directions
Limit Remark
Repair limit is +0.2 mm
[+0.0079 in.]
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6-11