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I have a KH power steering pulley and it’s solid as shown in the picture, but I have also seen the KH pulley with three holes in it. What application used which? Or is it a year difference? The pic below is from a 1970 442 I think.
I have a KH power steering pulley and it’s solid as shown in the picture, but I have also seen the KH pulley with three holes in it. What application used which? Or is it a year difference? The pic below is from a 1970 442 I think.
Its a 70 442 with PS and A/C. I can’t measure the pulley diameter cause it’s packed up and sent to be rebuilt. The CSM says KH is the right one but I’ve seen KH with holes and without and just curious.
I’ve seen KH with holes and without and just curious.
I do not know the application but the ones with holes are to allow tightening the adjustment bolt on the pump using a socket rather than an open end wrench behind the pulley.
That would be great if you can look at a few others. I would hate to pay to rebuild this pump if it’s the wrong pump or pulley for the documented 70 442 W30 i am piecing back together.
Originally Posted by 70Post
The original setup on my '70 has no holes in the pulley. I'll check a couple more '70 442's tomorrow. I think the holes appeared later on.
The pump style you show in the first pic IS the correct style pump HOUSING....with the long, extended neck on it. Is that what you have for yours Ap6954?
Patton, do you know if this is the same pulley that is used on the 72 Cutlass? The Assembly Manual shows the 72 HD system as having a KH pulley, but most of those that I've seen have 3 holes in the front to line up a socket for tightening the tensioner bolt. Does the solid face pulley have enough clearance on the back to properly it on a 72 style PS pump and tighten the tensioner bolt with a wrench?
Yes Patton. The first picture in the thread is the PS pump and bracket I pulled off the 1970 442 w30 I am restoring.
Originally Posted by 70Post
The pump style you show in the first pic IS the correct style pump HOUSING....with the long, extended neck on it. Is that what you have for yours Ap6954?
Be careful when removing the pulley. It may be more of a potential problem on a SINGLE ROW PULLEY due to those having less metal/thickness. I would avoid using a puller type tool. I've removed pulleys in the past, myself, by removing the locknut and putting a junk nut on the center shaft and then tapping on the nut/shaft with a hammer while holding the PULLEY - with the pulley in a horizontal position ABOVE the ground (ie - not on a bench, etc but holding the assembly in the air - over a padded box, etc). The weight of the pump will help with this technique.
I've seen some single row pulleys that were bent/warped b/c someone used a puller type tool. May be less prone to happen on a double row but there's no need to play guinea pig with yours if this technique will work.
Have a buddy hold the edges of the pulley (above the ground) while you tap on the junk nut/center hub.... a lot less akward with an extra set of hands.
Thats good advice. I went ahead and sent the pump assembly with the pulley still on it to get rebuilt with the steering gearbox.
Originally Posted by 70Post
Be careful when removing the pulley. It may be more of a potential problem on a SINGLE ROW PULLEY due to those having less metal/thickness. I would avoid using a puller type tool. I've removed pulleys in the past, myself, by removing the locknut and putting a junk nut on the center shaft and then tapping on the nut/shaft with a hammer while holding the PULLEY - with the pulley in a horizontal position ABOVE the ground (ie - not on a bench, etc but holding the assembly in the air - over a padded box, etc). The weight of the pump will help with this technique.
I've seen some single row pulleys that were bent/warped b/c someone used a puller type tool. May be less prone to happen on a double row but there's no need to play guinea pig with yours if this technique will work.
Have a buddy hold the edges of the pulley (above the ground) while you tap on the junk nut/center hub.... a lot less akward with an extra set of hands.
