I'm replacing my alternator and the one I picked up from Autozone is a single pulley unit while I need a double pulley unit. When I picked it up, I didn't see an option on the Zone screen for a double pulley or for an AC car, so I assume this is what they carry- single pulley unit. I'd like to switch the pulley from my old unit to the new one. My question is in how to get the pulleys off. The nuts on both units are on damn tight and there isn't a good way to stop the alternator from spinning without damaging something (at least as far as I can see). I didn't see anything in the service manual on how to do this. So, how about it guys? Anyone have a good method?
You need an impact wrench to even think about getting it off. I used a screwdriver to stop the vanes from spinning on the inside, but I wouldn't recommend that:grin: It worked, but I was worried it wouldn't... My double belt pulley was easy since the thing has an allen wrench in the center to keep it from spinning.
Ken, if your taking they core back to them, they will swap it for you. As mentioned above, the impact is the best, and don't try the screwdriver thing. It won't be pretty. Jeff
Ken, one thing I thought of. I know your car has been in storage, and so that may be the original alternator. If so, it is date coded, and I would hang on to it. It worth paying the core charge, or give them another one. They usually don't care if it's the same.
A junkyard owner had me hold the vanes with channel locks while he used an electric drill with a socket attatchment. It was a high-torque drill, though.
Jeff, The number on the alternator is 11000891. The chassis service manual lists numbers that end in 110009xx as original. So I'm not sure if it is original or not (I still think it is), but I plan to keep it for the measly $10 core charge. I have a box of take-off stuff that's original, I'll add it to that. Adam, Jeff, Truzi- I tried the screwdriver method on the new one before I posted. I managed to slightly bend a couple of vanes and then stopped. I'll find someone with and impact wrench and give it a try. Do you clamp the pulley in a vice and then use the impact wrench? Thanks,
If you take an old fen belt, and wrap it around the pulley, and then clamp the belt in a vise, you should be able to break the nut loose.
Using an old belt around the pulley then clamping it in the vise may work for ya. I use the above mentioned impact gun, works perfect and no chance for damage.
Ken, stop by my shop one day this week & I can change the pulley for you. I should have mentioned this whem I was there. I can replace the bearings for less money then a POS Autobone replacement. Also, maybe you can drop off the two brake tools I left. Thanks, Tom
Hey Tom- Will stop by. I was away on business until today, so I didn't get a chance to call you. I found your brake tools on monday as I was cleaning up. Thanks again for the help! Did you have any luck replacing the brass pieces in the master cylinder? Talk to you soon!
do it the right way hold the pulley with your hand it wont rip your fingers off , i have been doing it for 20+ years and use a 15/16 socket on an impact wrench and it will come right off.dont jam a screwdriver in the fan:blast:
Actually, Tom (Teleriv) did exactly that (impact wrench/no screwdriver in fan) and replaced bearings and brushes. He also gave it a coat of Alumi-Blast, so it looks good as new! So, the one from Autozone, which squeaked out of the box ou: , goes back to Autozone. :TU:
beleve it or not a squeaking noise is ok?you ask why,the brushes do that if you spin it counter-clock wise,cause they are designed to spin clockwise,on a true surface.much like cross honing a cylinder,they have to seat after running for a while:Smarty: but i still hate parts house crap,hencefor,i build em right!!!:laugh: i am sure the parts house counter jerk will explain it MUCH better:bglasses:
