How do you remove the pulley on the water pump?

I think I put a leather oil filter strap wrench round the wheel of mine to hold it when I did it. Best I can suggest is soak it in some penetrating fluid & get an impact gun onto it if you can whilst finding some way to hold the wheel.

Torquing it up is a similar problem!

 

I bought an air impact wrench for $29. It worked like a charm on the water pump pulley nut. As the Brits say, the pump was "in situ" at the time.

 

And If you don't have an air compressor, you can use the electric impact wrench.

 

Are you going to rebuild your own water pump or have it rebuilt or buy new?

When I did my water pump I called The Flying Dutchman before attempting to remove the pulley. He told me NOT to remove the pulley as they break easy and difficult to get, just send the complete assembly.

If you are buying a new pump, then be carefull removing the pulley. I broke a crank pulley out of my Toyota pickup long time ago, expensive mistake.

Cheers,

 

It is not the muscle that makes the difference, it is the quick zap of the impact wrench that spins the nut off. You just can't do that by hand. And once you have the nut off, the pulley should wiggle off by hand, and if not, use an appropriately sized gear puller.

 

An impact wrench is the way to go and as noted, it is not the power that matters.

It also sounds like it could use some penetrating oil as well. Let it soak and then give it a go.

I typically hold the pulley with my hand and then use the impact wrench. The short action of the impact wrench means that you can usually hold the part by hand. I also think it minimizes the risk of damaging the treads if they are frozen.

I would never use an impact wrench to install it. Torque wrench is the only way to go but I am sure most of you already know this.

 

Make some "Soft Jaws."

I put the pulley in them, and just wrenched the nut off.

Good Luck,
Edwardo
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To remove mine, I used an air impact IR wrench, invest in air tools if you spend serious time working on car. It makes things much easier.