Cylinder Block - Kubota Z400-B Handbuch

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[4] CYLINDER BLOCK
(1 )
(2)
(3)
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II 111 7Ft!71
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Camshaft Lobes
H ..
"n".'t
1. Measure the height of the camshaft lobes at their largest
0.0. with an outside micrometer.
2. If the measurement is less than the allowable limit,
replace the camshaft.
Factory 26.88 mm,
specification 1.0583 in.
Cam height
Allowable 26.83 mm,
I
limit 1.0563 in.
Cylil1~~~Liner/Cylinder
Wear
1. Measure the 1.0. of the cylinder liner or the cylinder
(linerless type) at six positions (See figure) with a cylinder
gauge to find the maximum and minimum I.O's.
2. Get the difference between the maximum and the mini ­
mum 1.0.'s as the maximum wear.
3. If the wear exceeds the allowable limit, bore and hone to
the oversize dimension (Refer to the table) and replace
the piston and the piston rings with the oversize ones.
4. When having been oversized and the wear exceeds the
allowable limit, replace the cylinder liner with dry liner
changer-II (Code No. 07916-33081) or replace the
cylinder block. (linerless type) .
Cylinder
(liner) 1.0.
Factory
specification
..
­
Z400-B
64.000 to 64.019 mm,
0600-B
V800-B
2.51969 to 2.52043 in.
Z430-B • 66.000 to 66.019 mm,
0640-B • 2.59843 to 2.59917 in.
Maximum wear
Allowable
limit
0.15mm,
0.0059 in.
(Reference)
• Oversize dimension of cylinder:
Model 1.0.
Z400-B
0600·B
V800-B
64.500 to 64.519 mm
2.53937 to 2.54012 in.
_
.......
Z430-B
0640-B
66_500 to 66.519 mm,
2.61811 to 2.61886 in.
Hone to 1.2 to 2.0 /-1m Rmax.
0.00047 to 0.00079 in. Rmax.
- ­
• Oversize piston and piston rings:
!
Model Name Code Number Marking
Z400-B
Piston 05 15841-21911 05
as
0600·B
V800-B
Piston ring 05 assembly 14601-21091 05
as
0430-B! Piston 05 15852-21911 05
as
0640-B
_
........
Piston ri ng 05 assem bly
14541-21091
05
as
8-97