It's been a a while since I've done it, but as I remember it, they can be on pretty tight. Getting the nut off isn't a problem. How do I best remove the pulley w/o damaging it or the backing fan plate? It's on an 81.

Thank you in advance,

Mark G

 

gear or pulley puller

 

Once you remove the nut it should come right off.

 

 

just tap it a little.... it's press fit on a bit..not much

 

getting the nut off is the hard part. Either an impact wrench or split the case and clamp the rotor in a vise.

 

I had to do a roadside repair once, had the replacement alt with the wrong pulley, we wrapped a rag around the fan part and held it with an oil filter wrench, it was just enough to hold it so we could crack the bolt loose.
Bubba Lives!

 

I use an impact gun to remove the nut, then screw it back on by hand till the threads are flush with the top of the nut, clamp the pulley in a vise with wooden blocks on the pulley and hit the shaft with a hammer. The nut will keep you from damaging the threads on the shaft and it should come right off.

 

I fubared a CS144 trying to get the pulley off. It looks like there's a split bushing between the pulley and shaft. Getting the nut off is the easy part. An alternator shop said I had to pull the whole thing apart to get this one off. Anybody know? I tried tapping it and all that did was screw the pulley which I wasn't using anyways.


HELP

 

Use a air or electric impact gun for both on and off. A leather glove around the pulley to keep the pulley tight It should not be any harder to do than that. Once the nut is off the pulley just slips off...

you dont need clamps or vices to do this either. all you will do is screw up the pulley

 

My pulley did not budge at all even after tapping it...harder...and harder.... Does anybody know how to take the pulley off a CS144 alternator. I don't think it's the same.

 

Hell no this isn't Bubba..this is just good hands on work

 

Your talking about the pulley and not the nut right? Use a puller.

 

The easiest way I know how to remove the pulley or nut off is to leave the alternator installed in the car. This is the best way to hold it stable to get enough torque on the nut. You will need a large wrench that is closed end and a proper size allen wrench unless you have access to an impact gun.
Good Luck!

 

I have changed several over the years and I have never had the kind of trouble you describe. Once I have removed the nut with an impact gun I hand threaded the nut back on the shaft till it was flush with the top of the armature shaft and tapped the nut and shaft with a small brass hammer and hold the pulley in my hand or a padded vise and they always come loose. Are you tapping on the shaft and nut or the pulley?

 

I first tried pullers and that bent the crap out of the pulley(not using it anyways) and then I tried tapping the pulley up off the shaft, that didn't work and then tried the end if the shaft , it's really stuck on there good. There is what looks like a split bushing in around the shaft, has anybody seen that?

Also, everybody, the nut is simple and obvious , there's more to getting this thing off.

 

Mark G if it is a stock pulley it should come off pretty easy. If it has been changed to a different style pulley it may be galled on. With the nut off use a little penetration oil WD40 or such and let it sit. Tapping and heat will also help. If all else fails you can break the alt in half, put the rotor in a vise and with 2 screw drivers under the fan as close to the rotor shaft as you can then gently pry the screw drivers up in a one then the other motion then lift both up together. Unless you get brutal with it this won't warp the fan.
BB72 you have a beast of a different color. The CS144 with the split tappered collar is a bear to disassemble. Break the alt in half, clamp the rotor in a vise. take the nut and lockwasher off. Now comes the fun part. You will now need a socket big enough to fit over the tapered collar and rest on the inside of the pulley, a 30mm socket is what i think I use. Now you need a big a$$ hammer and a little anger. with the rotor clamped tight and the socket on the pulley with the lip of the socket not touching the split tappered collar but resting on the inside of the pulley beat that ba%#%# hard. You may try to use a socket that you have little use for cuz you may booger it up with the hammer. Sometimes the pulley will come loose with one strike and sometimes it will take many. Once it comes loose it will lift right off. I strongly suggest you change the bearing at this time so you don't have to do it again later. Also be sure to inspect the rotor shaft at the needle bearing end and the shaft where the bearing and tappered colar ride. This setup has a problem destroying the rotor shafts and bearings. If the rotor shafts arren't smooth the rotor should be replaced. You should also replace the split tappered collar if you are using the same type of pulley again. Have fun Mark

 

post a photo, that would help. I''m not a fan of hitting the shaft with a hammer and it sounds like you're not either.

 

STOP STOP DO NOT HIT THE SHAFT with a hammer. The reason you need to strike the socket is to move the pulley down without moving the shaft or the split tappered collar. The split collar is shaped like a V The pulley inside is shapped the same way. By driving the pulley down even ever so slightly it will release the presure on the collar and the collar will move up allowing the tension between the pulley to collar and collar to shaft to release. Usually after this you can remove the pulley with 2 fingers. When reinstalling this setup you must tighten the bejabbers out of the nut cuz you are driving the collar between the shaft and the pulley. Mark

 

if your not using the pulley.... just grind/cut it off.....

i had the same issue with my power steering pulley not coming off...... i ended up buying a new setup..hahah....

b