6A – 58 GENERAL ENGINE MECHANICAL
5. Use a straight edge
!
and a feeler gauge
"
to
measure the four sides and the two diagonals of the
cylinder body upper face.
If the measured values exceeds the limit, the cylinder
body must be replaced.
Cylinder Liner Bore Measurement
Use a cylinder indicator to measure the cylinder liner bore
at measuring point
!
in the thrust
"
-
"
and axial
#
direction of the crankshaft.
Measuring Point
!
20mm (0.79 in)
If the measured value exceeds the specified limit, the
cylinder liner must be replaced.
NOTE:
The inside of the dry type cylinder liner is chrome
plated. It cannot be rebored or honed.
If the inside of the cylinder liner is scored or
scorched, the cylinder liner must be replaced.
Cylinder Liner Grade Selection
Measure the cylinder body inside diameter and select the
appropriate cylinder liner grade.
Standard Lifting Interference mm (in)
0.01 - 0.019 (0.0004 - 0.0007)
If the cylinder liner fitting interference is too small, engine
cooling efficiency will be adversely effected.
If the cylinder liner fitting interference is too large, it will be
difficult to insert the cylinder liner into the cylinder body.
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