Refilling

REFILLING

1. Tighten the radiator draincock and the cylinder block drain plug(s) (if removed).

CAUTION: Failure to purge air from the cooling system can result in an overheating condition and severe engine damage.

2. Fill system using a 50/50 mixture of antifreeze/coolant and low mineral content water. Fill the coolant recovery reservoir to service line and install pressure cap.

NOTE: The engine cooling system will push any remaining air into the coolant recovery reservoir within about an hour of normal driving. As a result, a drop in coolant level in the coolant recovery reservoir may occur. If the engine cooling system overheats and pushes coolant into the overflow side of the coolant recovery reservoir, this coolant will be drawn back into the cooling system ONLY IF THE PRESSURE CAP IS LEFT ON RESERVOIR. Removing the pressure cap breaks the vacuum path between the two reservoir sections and the coolant will not return to cooling system.

3. With the heater control unit in the HEAT position, operate the engine with the coolant recovery reservoir cap in place.
4. Add coolant to the coolant recovery reservoir as necessary. Only add coolant to the coolant recovery reservoir when the engine is cold. Coolant level in a warm engine will be higher due to thermal expansion.

NOTE: The coolant recovery reservoir has two chambers. Coolant will normally only be in the outboard (larger) of the two. The inboard chamber is only to recover coolant in the event of an overheat or after a recent service fill. The inboard chamber should normally be empty. If there is coolant in the overflow side of the coolant recovery reservoir (after several warm/cold cycles of the engine) and the coolant level is above the cold full line when cold, disconnect the end of the overflow hose at the radiator and lower it into a clean container. Allow the coolant to drain into the container until emptied. Reconnect the overflow hose to radiator.