Kubota SM-E4B Series Workshop Manual page 97

SM-E4B SERIES, WSM
Tappets
1. Remove the tappets (1) from the crankcase.
(When reassembling)
• Visually check the contact between tappets and cams for proper
rotation. If defect is found, replace tappets.
• Before installing the tappets, apply engine oil thinly around
them.
IMPORTANT
• Do not change the combination of tappet and tappet guide.
(1) Tappet
Valves
1. Remove the valve caps (4).
2. Remove the valve spring collet (3), pushing the valve spring
retainer (2) by valve spring replacer (1).
3. Remove the valve spring retainer (2), valve spring (5) and valve
stem seal (6).
4. Remove the valve (7).
(When reassembling)
• Wash the valve stem and valve guide hole, and apply engine oil
sufficiently.
• After installing the valve spring collets, lightly tap the stem to
assure proper fit with a plastic hammer.
IMPORTANT
• Do not change the combination of valve and valve guide.
(1) Valve Spring Replacer
(2) Valve Spring Retainer
(3) Valve Spring Collet
(4) Valve Cap
Thermostat Assembly
1. Remove the thermostat cover mounting screws (1), and remove
the thermostat cover (2).
2. Remove the thermostat assembly (4).
(When reassembling)
• Replace the gasket (3) with a new one.
(1) Thermostat Cover Mounting Screw
(2) Thermostat Cover
Water Pump Assembly (If necessary)
1. Loosen the alternator mounting screws, and remove the fan
belt.
2. Remove the fan and fan pulley.
3. Remove the water pump assembly (1) from the gear case cover
(3).
(When reassembling)
• Replace the gasket (2) with a new one.
(1) Water Pump Assembly
(2) Water Pump Gasket
1-S33
ENGINE
9Y1210785ENS0036US0
(5) Valve Spring
(6) Valve Stem Seal
(7) Valve
9Y1210785ENS0037US0
(3) Thermostat Cover Gasket
(4) Thermostat Assembly
9Y1210785ENS0038US0
(3) Gear Case Cover
9Y1210785ENS0039US0
KiSC issued 01, 2013 A