Illustration 67
g02351659
Drain
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the
pressure.
1.
Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly in
order to relieve any pressure. Remove the cooling
system filler cap.
2.
Open the cooling system drain valve.
Allow the coolant to drain.
Flush
1.
Flush the cooling system with clean water in order
to remove any debris.
2.
Close the drain valve.
NOTICE
Fill the cooling system no faster than 19 L (5 US gal)
per minute to avoid air locks.
3.
Fill the cooling system with clean water. Install the
cooling system filler cap.
4.
Start and run the engine at low idle until the
temperature reaches 49 to 66 °C (120 to 150 °F).
5.
Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly in
order to relieve any pressure. Remove the cooling
system filler cap. Open the drain valve. Allow the
water to drain. Flush the cooling system with clean
water. Close the drain valve.
Fill
NOTICE
Fill the cooling system no faster than 19 L (5 US gal)
per minute to avoid air locks.
1.
Fill the cooling system with Extended Life Coolant
(ELC). Refer to this Operation and Maintenance
Manual, “Fluid Recommendations” for more
information on cooling system specifications. Do
not install the cooling system filler cap.
2.
Start and run the engine at low idle. Increase the
engine rpm to high idle. Run the engine at high
idle for 1 minute in order to purge the air from the
cavities of the engine block. Stop the engine.
3.
Check the coolant level. Maintain the coolant level
within 13 mm (0.5 inch) below the bottom of the
pipe for filling. Maintain the coolant level within
13 mm (0.5 inch) to the proper level on the sight
glass.
4.
Clean the cooling system filler cap. Inspect the
gasket that is on the cooling system filler cap. Only
install the used filler cap if the gasket is not
damaged. Test the cap for the correct pressure.
The correct pressure for the cooling system filler
cap is stamped on the face of the cooling system
filler cap. If the cooling system filler cap does not
retain the correct pressure, install a new cooling
system filler cap.
94
SEBU9071-06