decided to do a little write up for the 1FZ-FE PS pump since i didnt see one in FAQ.
this follows the FSM but i try to add better detail and explanations. this particular pump came from a '96 LX450
first thing is to remove the pump from the car 1FZ power steering pump replacement...
next go to a bench and wipe down if necessary just to get extra crud off.
first thing is to check rotational preload. this tells you if you have a dragging bearing or vanes in the pump spec is 2.4 in-lbs or less. my pump was in spec.
second is to remove the suction port, uses a 12mm socket or wrench.
third is to remove the pulley, use a 12pt 17mm socket and my 3/8 impact.
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Just as an FYI, the bore of the power steering pump gear, and the pump shaft are both tapered. So there is no need to worry about installing the gear too far, or not far enough because the gear will only go on so far.Did you have any issues with the “ticking” commonly associated with the gear not being installed far enough? I’m waiting on one more hose and I’ll be rebuilding my PS pump and replacing hoses.
Since we all worry about doing damage to the pump gear, Here's a very simple tool i made to hold that gear. It's made from a wood 2X6, the one end you can clamp in your bench vice and the other end clamps the gear. I used a hole saw to make the large hole, then i used a sand paper flapper wheel to bring the hole to just under the O.D.size of the gear. Next i cross drilled it for 2, 1/2 inch bolts to clamp the gear, then i finished it off by cutting it apart on a band saw. While clamped in this block my gear never once moved while removing, or installing that nut. Here's the best part,it only cost a few bucks to make, and you can loan it to your Toyota friends when they need to rebuild their pump.
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