How To Remove Pulley From Water Pump

How to Remove a Water Pump Caster

by Jesse Randall

quondam engine prototype by John Sfondilias from <a href='http://www.fotolia.com'>Fotolia.com</a>

Water pumps quickly burn up if coolant levels are too low. Unfortunately, coolant leaks are adequately common in older vehicles and water pump failure is the issue. Once the pump wears out, engine failure is imminent. A new pump is the solution, but replacing it can exist frustrating, unless grooming is taken. One of the most difficult steps in the removal of the pump is just accessing the bolts securing it in identify, which are ofttimes hidden by the water pump's pulley, which is itself hard to remove. Fortunately, mechanics have already devised a method of doing this.

Stride one

Remove obstacles away from the water pump. Often alternator and air conditioner compressor belts will be in the mode. Depress the chugalug tensioner associated with the belt to be removed, which maintains constant tension of the belt, to obtain enough slack to slip the belt off. The tensioner is a spring which pushes against a chugalug and manually pushing information technology the opposite way volition release the tension.

Footstep 2

Remove the engine's timing belt or chain if necessary, as this is often in the way of the water pump. Tape the orientation of all associated sprockets with respect to each other, equally it will exist necessary to reinstall the timing concatenation in the exact same style for the engine to run properly. A notch is commonly engraved on 1 molar of each sprocket; ensure that each notch is pointing in the same management when the timing chain is replaced.

Footstep 3

Remove the water pump belt from the h2o pump. Depending on the specific mechanics of the vehicle, adamant by the manufacturer, this belt may drive solely the water pump, or a serpentine belt which wraps around the pulleys of many other devices, such as the ability steering pump and alternator. The belt demand non be taken off all of the pulleys unless doing and so is necessary to access the h2o pump.

Stride 4

Install the pulley removal tool to the water pump pulley. The tool has two clips which are placed behind the pulley and a screw which pushes against the pump rotor. The tool will apply pressure to the shaft to push the pulley off the pump. Information technology is difficult to obtain a secure fulcrum to pry the pulley off using a screwdriver or prying bar, and doing and then will necessarily put force per unit area on other parts of the vehicle'due south mechanics, such as the engine, other pumps, and exhaust manifolds, and may cause damage to them. Additionally, the athwart force on the h2o pump itself could bend the bolts bonding it to the engine and tin brand the removal harder.

Tighten the removal tool slowly. Some removal tools crave a ratchet drive socket to plow the spiral, while others tin can exist turned by mitt. Every bit the removal tool's screw is rotated, information technology extends toward the shaft of the pump rotor, while its side clips undergo an opposite force pulling the pulley from the rotor. The even pressure level applied by the removal tool will force the pulley off the h2o pump rotor without cracking or bending the pulley.

Things You'll Need

• Pulley removing tool (adjustable)
• Socket set / wrenches
• Screwdriver set

Author Bio

Jesse Randall studied mathematics and physics and works as an embedded electronics engineer, developing microcontroller firmware and digital interfaces. He writes well-nigh subjects including abiogenesis, electrochemistry and algorithm optimization. He has been writing on engineering science-related subjects since 2000.

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