Kubota MX5100 - Page 134

1-S42
MX5100, WSM
ENGINE
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.
W1022001
Valves
1. Remove the valve caps (3).
2. Remove the valve spring collet (4), pushing the valve spring
retainer (5) by valve spring replacer (1).
3. Remove the valve spring retainer (5), valve spring (6) and valve
stem seal (2).
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 (4), lightly tap the stem to
assure proper fit with a plastic hammer.
IMPORTANT■
• Do not change the combination of valve and valve guide.
W1022102
Thermostat Assembly
1. Remove the thermostat cover mounting screws, and remove the
thermostat cover (1).
2. Remove the thermostat assembly (3).
(When reassembling)
• Replace the thermostat cover gasket (2) with new one.
• Apply a liquid gasket (Three Bond 1215 or equivalent) to the
water flange 1 (4) and flange 2 (5)
W1105115
(1) Tappet
(1) Valve Spring Replacer
(2) Valve Stem Seal
(3) Valve Cap
(4) Valve Spring Collet
(5) Valve Spring Retainer
(6) Valve Spring
(7) Valve
(1) Thermostat Cover
(2) Thermostat Cover Gasket
(3) Thermostat Assembly
(4) Water Flange 1
(5) Water Flange 2