Kubota D1803-CR-E4 - Installing Cylinder Head; Installing Tappet; Installing Thermostat Assembly; Installing Valve

6.25 Installing thermostat assembly
NOTE
• Replace the gasket with a new one.
1.
Install the thermostat assembly (1).
NOTE
• Make sure
that the direction the jiggle valve
oriented to the coolant temperature sensor.
(1) Thermostat assembly
2. Install the thermostat cover (2).
(2) Thermostat cover
6.26 Installing valve
NOTE
• Clean the valve stem and valve guide hole.
T
ools required
• Valve spring compressor
1. Install the valve stem seal (1).
NOTE
• Apply the engine oil sufficiently
.
2. Install the valve (2).
3. Set the valve spring (3) and valve spring retainer
(4).
4. Compress the
valve spring with valve spring
compressor and install the valve spring collet (5).
(1) Valve stem seal
(2) V
alve
(3) Valve spring
(4) Valve retainer
(5) Valve spring collet
(6) Valve cap
5. Remove the valve spring compressor.
6. After installing
the valve spring collets (5), lightly tap
the stem tip to attach it correctly with the plastic
hammer.
7. Install the valve cap (6).
6.27 Installing tappet
IMPORTANT
• Do not
change the combination of cylinder
number and tappet.
NOTE
• Apply engine oil thinly around tappets.
1.
Install the tappets (1) to the crankcase (2).
(1) Tappet (2) Crankcase
6.28 Installing cylinder head
IMPORTANT
• When replacing the piston, piston pin bushing,
connecting rod or crankpin bearing, select the
SERVICING
6. Assembling 4. ENGINE
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
4-149
KiSC issued 12, 2018 A