Using a cylinder gauge, measure the cylinder bore
diameter at positions A, B and C in the thrust and axial
directions.
Standard diameter:
STD
Mark ’1’
87.500 – 87.510 mm (3.4449 – 3.4453 in.)
Mark ”2”
87.510–87.520 m m (3.4453–3.4457 in.)
Mark ”3”
87.520–87.530 mm (3.4457–3.4461 in.)
Maximum diameter:
STD
87.73 mm (3.4539 in.)
0/S 0.50
88.23 mm (3.4736 in.)
If the diameter is greater than maximum, rebore all the
six cylinders, If necessary, replace the cylinder block.
PISTON AND CONNECTING ROD
DISASSEMBLY
1. CHECK FIT BETWEEN PISTON AND PISTON PIN
Try to move the piston back and forth on the piston
pin.
If any movement is felt, replace the piston and pin as
a set.
5. REMOVE CYLINDER RIDGE
If the wear is less than 0.2 mm (0.008 in.), using a
ridge reamer, grind the top of the cylinder.
2. REMOVE PISTON RINGS
(a) Using a piston ring expander, remove the two com–
pression rings.
–ENGINE ENGINE MECHANICAL
EG2–107
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