Cooling System - Reverse Flushing

1. Drain radiator and remove hoses from radiator. Refer to Cooling System.
2. Remove engine thermostat and reinstall thermostat housing. Refer to Cooling System.
3. Install suitable flushing gun to thermostat housing hose.
4. Turn on water, and when engine is filled, turn on air, but no higher-than 138 kPa (20 psi) in short blasts. Allow engine to fill between blasts of air.
5. Continue this procedure until water runs clean.
6. Install thermostat using a new housing gasket. Refer to Cooling System.
7. Fill cooling system. Refer to Cooling System.