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Need advice on removing stubborn pulley from spindle

#1

cprice12

cprice12

So I bought three replacement pulleys for the deck belt...but I can't get the old pulleys off.

IMAG0332.jpg


I used a mini-sledge with a wood block to protect the spindle...but they wouldn't pop free. I rigged up some 2x4's so the entire thing was resting on the pulley and hammered down on top of the spindle...hoping it would come free.

I sprayed penetrating oil on all three before I tried to free it and again after...and they have been sitting since yesterday evening.

Any tips?


#2

BlazNT

BlazNT

Use PBblaster not WD40. WD40 is not really a penertrating oil. PBblaster is. Get a pulley puller. 4ton.


#3

cprice12

cprice12

BlazNT said:
Use PBblaster not WD40. WD40 is not really a penertrating oil. PBblaster is. Get a pulley puller. 4ton.
Click to expand...

I did use penatrating oil...not WD40.
And I'm renting a pulley puller after work today.
Thanks...hopefully that does the trick.


#4

Fish

Fish

Get a grade 8 nut that fits the shaft threads, and thread it almost all of the way to the shaft, and hit that with the hammer, with the spindle sitting on you vice, or something real solid. Wood has too much "bounce"...


#5

S

SeniorCitizen

Being the pulley will be replaced, drill three 21/64" holes equidistant just outside the hub and tap 3/8" fine thread. Drill three 7/16" holes with the same spacing in a half in thick plate. Drop cap screws through the 7/16 holes and screw in with a good amount of torque. ( judgement call ). Allow the plate to rest on the shaft end.

With a torch begin heating the outer periphery of each pulley edge so the hub will expand before the shaft expands. That heat will expand the hub while the hub can still be touched with your fingers. Check the cap screw torque frequently and tighten when necessary. If the pulley moves some then seems to cease movement, stop and cool the complete assembly and start back at square 1. An impact, used with some horse sense, is handy to make it go faster once the pulley decides to move.


#6

reynoldston

reynoldston

cprice12 said:
I did use penatrating oil...not WD40.
And I'm renting a pulley puller after work today.
Thanks...hopefully that does the trick.
Click to expand...

That would be my next try is a puller. Then if that didn't work, heat. Then if that didn't work I would cut it off. Be careful of the threaded shaft.


#7

cprice12

cprice12

SeniorCitizen said:
Being the pulley will be replaced, drill three 21/64" holes equidistant just outside the hub and tap 3/8" fine thread. Drill three 7/16" holes with the same spacing in a half in thick plate. Drop cap screws through the 7/16 holes and screw in with a good amount of torque. ( judgement call ). Allow the plate to rest on the shaft end.

With a torch begin heating the outer periphery of each pulley edge so the hub will expand before the shaft expands. That heat will expand the hub while the hub can still be touched with your fingers. Check the cap screw torque frequently and tighten when necessary. If the pulley moves some then seems to cease movement, stop and cool the complete assembly and start back at square 1. An impact, used with some horse sense, is handy to make it go faster once the pulley decides to move.
Click to expand...

Why would I drill holes in the pulley?


#8

cprice12

cprice12

Soaking with penetrating oil overnight, then using the pulley puller with some heat did the trick.
It didn't move at first with the puller, but I applied heat then it came right off.
Worked fine on all three.
I had never used a pulley puller before...nice tool. The rental place couldn't find the price in their system for the puller, so they just charged me $5 for 24 hours. Sounded good to me.
Thanks guys.

IMAG0334.jpg


IMAG0335.jpg


#9

M

motoman

well done!


#10

V

vaskeet

cprice12 said:
I had never used a pulley puller before...nice tool. The rental place couldn't find the price in their system for the puller, so they just charged me $5 for 24 hours. Sounded good to me.
Thanks guys.

[

around here both auto zone and advance auto have pullers and other tool for free rental. They put a charge for the price of the tool on your cc and refund it when you return the tool. another trick for stuck parts is paraffin wax. All you need is some paraffin wax (candle wax) and a source of focused heat. A propane torch or a heat gun should be used to gently heat the fastener. In this case, you don't have to get it too hot, just warm enough to melt the wax. Once the metal is warm enough, touch the candle to the fastener around the edges and allow the wax to melt. The heat will pull the wax into the gaps between the bolt and nut threads and allow for easier turning. Remember that the wax will tend to flow to the heat source, so heat the bottom threads the most.
Click to expand...


#11

cprice12

cprice12

vaskeet said:
cprice12 said:
I had never used a pulley puller before...nice tool. The rental place couldn't find the price in their system for the puller, so they just charged me $5 for 24 hours. Sounded good to me.
Thanks guys.

[

around here both auto zone and advance auto have pullers and other tool for free rental. They put a charge for the price of the tool on your cc and refund it when you return the tool. another trick for stuck parts is paraffin wax. All you need is some paraffin wax (candle wax) and a source of focused heat. A propane torch or a heat gun should be used to gently heat the fastener. In this case, you don't have to get it too hot, just warm enough to melt the wax. Once the metal is warm enough, touch the candle to the fastener around the edges and allow the wax to melt. The heat will pull the wax into the gaps between the bolt and nut threads and allow for easier turning. Remember that the wax will tend to flow to the heat source, so heat the bottom threads the most.
Click to expand...

I saw a video of a guy doing that.
I had penetrating oil sitting on top of the pulley around the spindle when it was heated up...so I probably got the same result, the oil was pulled down when it was heated.
Thanks.
Click to expand...


#12

V

vaskeet

The Autozone near me has a product called "Freeze Off" it is supposed to work the opposite of heat IE cool the metal to help break the rust loose. So far it has worked on the few thing I have tried it on


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