How to Change the Water Pump on a Volvo 740
In Volvo 740, a water pump is used to flow coolant through the engine’s cooling system in order to keep the engine safe form overheating. The water pump can experience water or antifreeze leakage which means that it needs to be changed as soon as possible. Changing the water pump is pretty simple and put aside your cash if you do it on your own. Let see how to change the water pump on a Volvo 740.
Things you’ll need:
The following things will help you:
- Water pump
- Drain pan
- Torque wrench
- Socket wrenches
To begin first of all disconnect the negative battery cable; next rotate the heater control knob setting to the maximum heat.
Secondly, take out the cap to the expansion tank. Then open the drain cocks on the engine block and the radiator as well. Pour the coolant out a drain pan. Don’t forget to close the drain cocks when you have done with totally draining the coolant.
Now uninstall the radiator covering and fan, and after that do away with the lower radiator hose where it gathers the water pump.
At this moment slip off the drive belts as well as water pump pulleys. You will find there eight retaining bolts on the water pump. And you have to loosen the bolts, nuts, and washers, and cautiously take out the water pump assembly.
Before you install the new water pump, make clean the gasket surfaces.
Now install the new water pump, and ensure that it is properly aligned earlier than tightening the preserving bolts as misalignment can cause damage.
After that install the removed coolant pipe and the radiator hose once again. And then reinstall the water pump pulleys and the accessory drive belts, and then the radiator fan and shroud as well.
Attach the negative battery cable again. Fill up the cooling system with coolant.
Finally turn on the engine until you obtain normal operating temperature. Ensure that there is no leak at all. And then turn the heater control knob setting to off position.