Servicing Specifications - Kubota Z400-B Handbuch

[6] SERVICING SPECIFICATIONS
ENGINE BODY
[Cylinder Head]
Item
0.60 to mm
(0.0236 to 0.0315 in.)
1.15 to 1 .30 mm
Free
10.0453 to 0.0512 in.l
1 .05 to 1 .15 mm
Tightened
(0.0413 to 0.0453 in.)
(31.5
[Valves (IN., EX.)]
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0.15toO.18mm
v'"U'U"vv
(0.0059 to 0.0071 inJ
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2.12 mm
Valve seat width
-
(0.0835 in.)
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0.785 rad.
Valve seat angle
!
(45.0°)
0.785 rad.
Valve face angle
-
(45.0°)
i
1.2 mm 0.75 to 0.95 mm
Valve recessing
10.047 in.) (0.0295 to 0.0374 in.!
h _ _ _
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._.
.
__
._----_
•.
_---­
' - - - '
0.10 mm
and guide 10.00118 to 0.00224 in.!
Clearance between valve stem 0.030 to 0.057 mm
(0.0039 in.!
5.968 to 5.980 mm 5.93 mm
Valve stem
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(0.23496 to 0.23543 in.! (0.2335 in.)
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6.010 to 6.025 mm
Valve guide 1.0.
-
(0.23661 to 0.23721 in.)
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[Valve Timing
1
0.35 rad. (20°)
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Open
Inlet valve
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r --__._ _
+-______
--'.b~e.f_o:.....rc...e
.... _ _
~
_ _ _ _.;.., - - - - . - - - -..
~-----------l
T.:c.O.Cc
0.79 rad. (45°)
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r----
Close
==r-- ' . .
after SOC
0.87 rad. (50°!
Open
Exhaust valve ,_-. - _ _ _ _ _. before
s.~c::..--.-.---l---,--~------------1
=i
0.26 rad. (15°)
Close
after TOC
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[Valve
Springs
1
Free length
1
Tilt
Tension
(6.6 kgf/27 mm, 14.6 Ibs/1.063 in.)
15.6 kgf /27 mm, 12.3 Ibs/l.063 inJ
31.6 mm
28.4 mm
(1.244 in.!
(1.118 in.!
1.2mm
(0.0~7
in.)
64.7 N/27 mm
54.9 N/27 mm
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8-14