LS430cb

I purchased a new pump now the pulley needs to be put on the new pump. How does it come off?

911LE

The pulley is press fit onto the shaft. The service manual doesn't give a procedure for removing just the pulley. It shows disassembling the entire pump to remove the pulley and shaft as a unit.
You can try removing just the pulley with a power steering pump pulley puller/installer tool that is usually a free rental from an auto parts store. The new pulley will need to be pressed on after using the installation tool.

LS430cb

Thanks for the response, I already tried the parts store tool. Our pulley doesn't have the lip on it the tool attaches to.

911LE

That's what I was afraid of. Maybe try a machine shop to see if they can do it. The Lexus replacement pumps come with a new pulley already installed. Rebuilt ones don't so there must be a way to remove them. You could heat up the pulley with a torch to expand it and make it easier to remove. If that works put the new pump in the freezer for a few hours and then try to install the pulley that has been heated.

LS430cb

That's a good idea, thanks man.

YODAONE

The pulley and shaft are depicted as an assembly in the Lexus parts diagramm.. LS400 had a nut and splined shaft end with removable pulley.....

If a correct replacement pump it should already have a pulley....

Sounds like you acquired an aftermarket pump...

Return it and go purchase a Lexus pump...it will save a lot of headaches down the road.

Please inform membership where you purchased the replacement pump so we know where not to go.

LS430cb

I purchased it from Rockauto. I decided to just go OEM, thanks again for your assistance.