-
Examine the used coolant. If white cotton-like patches appear in
the liquid then this means that the aluminium elements of the cooling
system are corroded.
If the liquid is brown then this means that the
steal or iron parts of the system are oxidized. In either case clean
out the system.
- Check the cooling system for damage, loose joints, or leaks.
- Install the water pump cover drain plug and cylinder drain plug with
the specified torque shown in the table. Always replace seals with
new ones.
Bolt torques:
Water pump plug: 9 Nm.
- Fill the radiator up to the edge and install the radiator cap.
- Check the cooling system for leaks.
- Start the engine, warm up the engine, and then stop it.
- Check the coolant level after the engine cools down. Add
coolant up to the bottom of the radiator filler neck.
SPARK PLUG
The standard spark plug is shown in the table and is tightened to
11 Nm.
Standard spark plug
Standard spark plug Gap between electrodes:
0.7-0.8 mm.
The spark plug should be taken out periodically to check the electrode
gap. If the plug is oily or has carbon build up on it the clean it with
a sand blaster. Following abrasive particle cleaning, the spark plug
should be cleaned with a wire brush or similar. Measure the distance
-
20
-
between electrodes using a gauge and adjust in case that it is not
correct by bending the outer electrode. If the spark plug electrodes
are oxidised, damaged or the insulation is broken then replace the
plug.
NOTE
Inspect every 30 hours. Replace every 60 hours.
To find the correct heat grade spark plug is being used, take it out
and examine the insulation around the electrode. If the ceramic is
light brown, the spark plug is correctly matched to engine temperature.
If the ceramic is white, the plug should be replaced with the next
coldest plug. If the ceramic is black, the plug should be replaced
with the next hottest plug.
NOTE
If the engine output decreases, replace the spark plug to regain
performance.
Spark plug maintenance
COMMENTS
If the standard spark plug is wet then replace it.
If the standard spark plug looks glassy or has a white
colour, replace it
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