COOLING SYSTEM The minimum fluid level is determined by the line on the surge tank indicated by the letters This indicator is located below the fill cap. rate until the surge tank is full (to the base of the fill neck). It may be necessary to pause for 1 minute and then re-fill if the fluid level dropped. 9. Fill the surge tank as necessary to raise the coolant level to Ѕ in. above the “MIN” level. 10. Operate the engine at high idle for another 10 minutes and then fill the surge tank again to Ѕ in. above the “MIN” level. The cooling system will need fluid if the surge tank level does not rise to the “MIN” line regardless if the system is hot or cold. 5.
Close any drain valves that were opened in Step 1. 6. Start the engine and idle at low RPM. 11. Replace the surge tank fill cap. Refilling Your Radiator 7. During low rpm idle, air will purge from the cooling system which will lower the coolant level in the surge tank. Continue to fill the surge tank until the coolant level remains approximately Ѕ in. above the "MIN" line. This may take up to 2 minutes, depending on the outside temperature. Check the coolant level after each trip. Add coolant as necessary. You may find your coolant level is not up to the correct level soon after you have filled the radiator. This may be because all the trapped air in the system has not yet been purged.
It takes a little time for all of the air to leave the system after you fill your radiator. 1. If your cooling system is built with drain valves in the upper engine coolant pipe, open them before filling the surge tank. 5 2. Close any open coolant drains in the system. 3. Remove the surge tank fill cap (do not remove the surge tank pressure cap). 8. Operate the engine throttle until the operating temperature stabilizes (when the thermostat opens). 4. Fill the system with premixed coolant through the surge tank fill cap. Pour coolant at a steady flow (03/17) Y53-6077-1B1 5-85