How is the water pump commonly driven?
Water pumps are most commonly driven externally by a pulley/belt combination. A bad water pump can cause an engine to overheat. But it is equally important to inspect the belt drive system that is driving the water pump.
How much does it cost to replace water pump on Honda Accord?
Honda Accord Water Pump Replacement costs $573 on average. What is a water pump and how does it work? The water pump is a belt or chain-driven engine accessory bolted to the engine above the crankshaft pulley.
How does a water pump work on an Audi A4?
The pump housing has an impeller that circulates engine coolant through the cooling system passageways in the engine block and cylinder head, on to the radiator, where the coolant temperature is reduced. . The lower temperature coolant then flows back to the water inlet on the engine and the water pump continues the cycle.
Do you need to replace the timing belt on a water pump?
For applications where the water pump is driven by the timing belt, the timing belt must be removed. Typically, this requires removal of the crankshaft pulley, timing belt covers, and timing belt tensioner. Once the new pump is installed, new coolant is added back while bleeding the cooling system of any air.
What happens to the water pump on a cold engine?
On a cold engine, the engine coolant is drained to a level below the water pump. Components that require removing to access the water pump are removed, including the belt or chain that directly drive the pump. The bolts holding the pump to the engine are removed and the pump is pulled out.
What does the water pump do in a Honda Accord?
A vehicle’s water pump is used to push engine coolant through the cooling system to keep the engine from overheating. In the 1991 Honda Accord the engine itself, through the use of the timing belt, drives the water pump. If the water pump fails the engine could overheat and cause major damage.
What kind of engine does a Honda water pump have?
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How to remove a water pump from a car?
Take off the timing belt and make sure that the engine doesn’t turn at any time during the removal or replacement process. Unscrew the six bolts holding in the water pump, making sure to keep track of which hole each bolt came from. The bolt heads are 1 mm in diameter. Pull the water pump and O-ring from the motor to complete the removal process.
How do you replace a new water pump?
Insert the new O-ring and water pump into the spot where the old pump came from on the motor. Make sure that the holes for the bolts on the new pump are lined up with the holes on the motor. Replace the six bolts on the new water pump. Use a torque wrench to tighten them to 9 ft.-lbs. of torque.