Radiator Flush
- Drain the cooling system. Refer to
Cooling System Draining and Filling
.
Caution: Refer to Safety Glasses Caution in the Preface section.
- Remove the lower radiator outlet hose at the coolant inlet pipe connection.
- Remove the upper radiator inlet hose at the coolant outlet housing connection.
Notice: Refer to General Repair Instructions in the Preface section.
- Attach a lead away hose to the open end of the upper radiator hose.
- Attach a suitable piece of hose or adaptor between the flushing gun and
the open end of the lower radiator hose.
- Connect and operate the flushing equipment as recommended by the manufacturer.
Caution: Refer to General Repair Instructions in the Preface section.
- Continue flushing until water from the lead away hose runs clean and clear.
- Install all disconnected hoses, ensuring that they are correctly position
and securely clamped.
- Fill the cooling system. Refer to
Cooling System Draining and Filling
.
- Pressure test the cooling system. Refer to
Cooling System Leak Testing
.
Heater Hoses and Core
Important: Do not use a chemical flush.
Store used coolant in the correct manner, such as in a used engine coolant holding
tank. Do not pour used coolant down a drain. Ethylene glycol antifreeze is a very
toxic chemical. Do not dispose of coolant into the sewer system or ground water. This
is illegal and ecologically unsound.
- Drain the cooling system. Refer to
Cooling System Draining and Filling
.
Important: Make a note of how the inlet and outlet hoses
were removed for correct installation.
- Remove both heater hoses (1) and (2) from their connections at the water pump.
- Direct the hose (1) that was connected to the water pump's rear-most connection
into a suitable container.
Caution: Refer to General Repair Instructions in the Preface section.
- Attach the hose (2) from the front connection to the flushing gun.
- Connect and operate the flushing gun.
- Install the heater hoses (1) and (2), ensuring they are
installed in the correct positions.
- Fill the cooling system. Refer to
Cooling System Draining and Filling
.
- Pressure test the cooling system. Refer to
Cooling System Leak Testing
.
Engine
Important: Do not use a chemical flush.
Store used coolant in the correct manner, such as in a used engine coolant holding
tank. Do not pour used coolant down a drain. Ethylene glycol antifreeze is a very
toxic chemical. Do not dispose of coolant into the sewer system or ground water. This
is illegal and ecologically unsound.
- Drain the cooling system. Refer to
Cooling System Draining and Filling
.
- Detach the inlet hose. Refer to
Radiator Inlet Hose Replacement
.
- Detach the outlet hose. Refer to
Radiator Outlet Hose Replacement
.
- Remove the thermostat housing. Refer to
Engine Coolant Thermostat Housing Replacement
.
- Remove the thermostat. Refer to
Engine Coolant Thermostat Replacement
.
- Install the thermostat housing. Refer to
Engine Coolant Thermostat Housing Replacement
.
- Remove the engine coolant air bleed hose (1) by releasing
retaining hose clamp (2) and remove it from the radiator spigot (3) and temporarily
plug the end of the hose.
Important: Make a note of how the inlet and outlet hoses
were removed for correct installation.
- Remove the heater hoses (1) and (2) from their connections at the water pump.
Seal the pump connections by looping the water pump heater inlet connection tothe
outlet connection using a suitable piece of hose and two retaining clamps.
- Install a lead-away hose to the thermostat housing and a length of suitable
hose between the water pump outlet fitting and the flushing gun.
- Connect and operate the flushing gun.
- Unplug the air bleed hose and continue flushing until the water runs clear.
- Install the heater hoses (1) and (2), ensuring they are
installed in the correct positions.
- Install the thermostat. Refer to
Engine Coolant Thermostat Replacement
.
- Install the thermostat housing. Refer to
Engine Coolant Thermostat Housing Replacement
.
- Attach the coolant air bleed hose (1) to the radiator
spigot (3).
- Secure the coolant air bleed hose (1) with the retaining hose clamp (2)
- Attach the outlet hose. Refer to
Radiator Outlet Hose Replacement
.
- Attach the inlet hose. Refer to
Radiator Inlet Hose Replacement
.
- Fill the cooling system. Refer to
Cooling System Draining and Filling
.
- Pressure test the cooling system. Refer to
Cooling System Leak Testing
.