[MidLife72]

Anybody have any tips on how to install the pulley on a power steering pump without damaging the seal? I thought I had it right until my pump started leaking again. :sad:
Thanks for the help - Don

 

[BB_Mike]

If I remember right the pulley puller kit also works to re install the pulley as well. You can rent them at the local auto parts stores.

 

[MidLife72]

When I replaced it before I bought a puller and it worked great for getting it off, but didn't have any provisions for installing pully on new pump so I pressed it on.... maybe a little harder than I should have, it did bottom out. You're saying there is a different style of puller that acts more like a harmonic balancer puller/installer?

 

[bulb122]

You're saying there is a different style of puller that acts more like a harmonic balancer puller/installer?

Yep, there's one that's very similar to a harmonic balancer installer. This is the one I have:
http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200354176_200354176

It was one of the rentals from the parts store that you buy, but can return when you're done. I could have taken it back but I was the first one to use it, and it worked well....so I kept it

 

[mwiggett]

Get yourself a bolt that will thread into the pump shaft, about 2 inches long, a nut and a couple flat washers that fit over the pulley. Thread the nut onto the bolt, put the flat washers on then thread into pump shaft. Use the nut to push the pulley on until flush with end of shaft. You may have to cut threads on the bolt or you cold also use a threaded rod. I think the thread size is 3/8 course thread.

 

[Shoestring]

thanks, thats a good suggestion.

 

[JIML82]

The 3/8-16 UNC female thread in the end of the pump driveshaft is for the installation tool. The splines that you see inside the end of the shaft were for a pump testing at Saginaw. They have nothing to do with pump or pulley operation.
Jim

 

[MidLife72]

Get yourself a bolt that will thread into the pump shaft, about 2 inches long, a nut and a couple flat washers that fit over the pulley. Thread the nut onto the bolt, put the flat washers on then thread into pump shaft. Use the nut to push the pulley on until flush with end of shaft. You may have to cut threads on the bolt or you cold also use a threaded rod. I think the thread size is 3/8 course thread.

The 3/8-16 UNC female thread in the end of the pump driveshaft is for the installation tool. The splines that you see inside the end of the shaft were for a pump testing at Saginaw. They have nothing to do with pump or pulley operation.
Jim

I looked at lunch today and all the pulley shaft has is a dimple to center the puller.

 

[mwiggett]

I looked at lunch today and all the pulley shaft has is a dimple to center the puller.

My mistake for assuming you had a later style pump. I have the same setup on my '69, my pulley went on without to much difficulty. That style or atleast mine had a keyway to keep it in place and was not a press fit. I do remember having to file a little on the inside of my pulley because the keyway slot was not exactly straight. Went on fine after.

 

[MidLife72]

Hey, not a problem mwiggett... I just don't want to bugger it up again doing it wrong. Do you suppose if it's a real tight fit again, it'd be okay to take some off the shaft or inside ID of pulley? Thanks for the input.

 

[mwiggett]

Look at it carefully and see why it fits tight, maybe the woodruf key is a touch wider or sits high. I just took a small file and cleaned up the indie of my pulley. It should fit snug but not tight. The newer ones are a pressed fit and have to be tight. Put some grease on the shaft and the inside of the pulley to help ease installation.

 

[MidLife72]

Thanks Mike, I'll give it a shot this weekend.