Filling Coolant; Filling Engine Oil; Servicing; Checking Cylinder Head Top Clearance - Kubota D1803-CR-E4 Workshop Manual

4. ENGINE
6. Install the starter (8).
(8) Starter

6.43 Filling coolant

IMPORTANT
• Do not mix the different type or brand of L.L.C.
• Do not use an anti-freeze and scale inhibitor at
the same time.
NOTE
• Make sure the drain valve is closed.
1. Fill the coolant until below the port from filling port.
IMPORTANT
• Make sure that you close the radiator cap
correctly.
• When you add the coolant, release the air
from the engine coolant channels.
• The engine releases the air when it shakes
the radiator upper and lower hoses.

6.44 Filling engine oil

IMPORTANT
• Do not mix different types of oil.
• Use the correct SAE engine oil by reference to
the ambient temperature.
NOTE
• Make sure the drain plug is tightened.
1. Fill the engine oil until the upper line (a) on the
dipstick from filling port.
4-162
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
(a) Upper line

7. Servicing

7.1 Checking cylinder head top
clearance
Tools required
• Plastigauge
1. Remove the cylinder head.
2. With the piston at T.D.C., use grease to affix three
or four plastigauges (1) to the crown of the piston;
keep the gauges away from the intake valve and
combustion chamber fittings.
Diameter
Plastigauge (1) cut
size
Length
(1) Plastigauge
3. Take the piston to an intermediate position, install
the cylinder head and tighten the cylinder head
mounting screw to the specified torque.
Tightening tor- Cylinder head
que mounting screw
4. Turn the crankshaft so the piston goes through
T.D.C..
SERVICING
6. Assembling
(b) Lower line
1.5 mm
0.059 in.
5.0 to 7.0 mm
0.20 to 0.27 in.
93.2 to 98.1 N⋅m
9.51 to 10.0 kgf⋅m
68.8 to 72.3 lbf⋅ft
KiSC issued 12, 2018 A