Kubota D650-B Handbuch Seite 116

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Removing O-ring
1) Remove the O-ring from the periphery of the oil pipe on
the crankcase.
(1) O'ring
(2) Pipe pin
GO
Removing Tappets
1) Remove the six tappets from the crankcase.
(Note for reassembling)
• Visually check the contact between tappets and cams for
proper rotation. If a defect is found, replace tappets.
• Before installing the tappets, apply engine oil thinly
around them.
(1) Tappets
4D
Removing Valves
1) Remove the valve caps.
2) Remove the valve spring collet, pushing the valve spring
retainer by valve spring replacer.
3) Remove the valve spring retainer, valve spring and valve
stem seal.
4) Remove the valve.
(Important)
• Don't change the combination of valve and valve guide.
(1) Valve spring replacer
(5)
Valve spring
(2)
Valve cap (6) Valve stem seal
(3) Valve spring collet
(71
Valve
(4) Valve spring retainer
120