Mitsubishi FUSO FH 1997, Руководство по обслуживанию

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11-40
PISTON, CONNECTING ROD AND CYLINDER SLEEVE
Cylinder sleeve
[Removal]
• Mount a boring machine on crankcase
*
2 and center. Centering must
be done at the lower part of cylinder sleeve 6 which is less unevenly
worn.
• Bore until the thickness of cylinder sleeve 6 is approximately 0.5 mm
{0.020 in.}.
• Insert tool D (a modified screwdriver) between crankcase
*
2 and
cylinder sleeve 6, break the sleeve by tapping it gently, then remove.
CAUTION
–
Make sure when inserting tool D that round part E is facing
crankcase
*
2.
03392
D
*
2 6
E
[Installation]
• Inspect sleeve hole of crankcase
*
2 before installing cylinder sleeve
6. If there are irregularities, such as defects or insufficient interfer-
ence, correct them by boring.
NOTE
• Pull out cylinder sleeve 6 of all cylinders and bore the sleeve
holes perfectly round when you bore the sleeve holes of crank-
case
*
2.
• Apply spindle oil (ISO VG 32) when you push cylinder sleeve 6
into the sleeve hole of crankcase
*
2.
Inspection of interference must be carried out as follows.
• Measure the inner diameter of the sleeve hole of crankcase
*
2 and
the outer diameter of cylinder sleeve 6 at the specified positions
illustrated.
• Take the average value at the top, middle and bottom (D1, D2, D3)
and across the diameter (A, B). If the interference is lower than the
limit, bore the sleeve hole of crankcase
*
2 oversize.
05337
6
D1
D2
183 mm {7.20 in.}
15 mm {0.59 in.}
03380
*
2
B
D3
A
D1
D2
183 mm {7.20 in.}
15 mm {0.59 in.}
99 mm {3.90 in.}
99 mm {3.90 in.}
B
A
D3