Alternator Pulley Removal
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 2
From: Connecticut
Originally Posted by 84rzv500r
Thinwall socket, a rag or leather gloves, a cold beer, and a 1/2 inch air impact.
The rag and gloves are optional...
The rag and gloves are optional...
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by Grayson
How do you stop it from spinning? There is no way using a rag an gloves will hold it when using the air.
Actually, I have done this several times with NO gloves or rag. Just hold the pulley tight in your hand. Put the impact gun and socket on the nut, and pull the trigger. It may tug at your hand a little, but the nut should come right out. The glove or rag just helps if the nut is being a pain, and the pulley slips a lot. Give it a shot, and you'll be a believer. I wasn't until I finally tried it.
Pro
Joined: Sep 2004
Posts: 500
Likes: 1
From: Philadelphia PA
Here's how I do it if you can visualize it --provided you cant break it free while it's still in the car.
Take the alternator out of the car.
Insert the allen wrench (the shorter end) into the middle nut.
Then, using a bench vise, put the other end of the allen wrench into the vise. You might have to turn the alternator sideways depending upon the height of your vise.
Then loosen the nut with a wrench. You may have to smack the wrench with a hammer.
Take the alternator out of the car.
Insert the allen wrench (the shorter end) into the middle nut.
Then, using a bench vise, put the other end of the allen wrench into the vise. You might have to turn the alternator sideways depending upon the height of your vise.
Then loosen the nut with a wrench. You may have to smack the wrench with a hammer.
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Melting Slicks
Joined: Dec 2002
Posts: 2,342
Likes: 2
From: Dayton Area Ohio
St. Jude Donor '08
Originally Posted by 84rzv500r
Thinwall socket, a rag or leather gloves, a cold beer, and a 1/2 inch air impact.
The rag and gloves are optional...
The rag and gloves are optional...
I always use the glove or rag, it's easier on the hand
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 2
From: Connecticut
I will try the glove and rag method with air later today and post my results.
Since I have it all apart during the rebuild.....I glass beaded the housing it looks awesome. I will post pictures later.
Since I have it all apart during the rebuild.....I glass beaded the housing it looks awesome. I will post pictures later.
Burning Brakes
Joined: Aug 2005
Posts: 1,126
Likes: 0
From: Hudson Falls, N.Y. 76 Vette Modified L-48
Originally Posted by Highhat
....Insert the allen wrench (the shorter end) into the middle nut.....
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by kb2fzq
This is how I got mine off, BUT...my problem was getting the half shell off the shaft...took it to a alt rebuild shop and they pressed it off in a second...I probably could have gotten it off myself eventually, Mr Impatient here...I wanted to pay him, he shook his head, smiled and said..."Have fun" (I mentioned it was off my 76 Corvette)
Could you press the cases on and off easily with a press like can be bought at Harbor Freight? I have access to one of those, and a few alts I want to de-case.
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
i got mine off today..... i took a longer allen wrench (L) and used the a-arm to hold the pressure of the allen....then used an adjustable to loosen the bolt........ i would recommend some wd to help get the fan off...
b
b
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 2
From: Connecticut
Got it off using the air gun. The speed and torque of the gun broke the nut free. I didn't even need to hold the shaft. The most difficult part of the rebuild was pressing the new bearings in.
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Originally Posted by Grayson
Got it off using the air gun. The speed and torque of the gun broke the nut free. I didn't even need to hold the shaft. The most difficult part of the rebuild was pressing the new bearings in.
Is this an original numbers matching case you're trying to keep? Are you rebuilding it with a higher voltage this time?
Racer
Joined: Feb 2005
Posts: 317
Likes: 2
From: coral gables miami
Originally Posted by Durango_boy
Actually, I have done this several times with NO gloves or rag. Just hold the pulley tight in your hand. Put the impact gun and socket on the nut, and pull the trigger. It may tug at your hand a little, but the nut should come right out. The glove or rag just helps if the nut is being a pain, and the pulley slips a lot. Give it a shot, and you'll be a believer. I wasn't until I finally tried it.
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 2
From: Connecticut
Originally Posted by Durango_boy
Is this an original numbers matching case you're trying to keep? Are you rebuilding it with a higher voltage this time?
I bead blasted the housing and didn't realize there was a rear bearing, until it was back together becuase it didn't want to spin very easy, so now I have taken it all back apart to change the rear bearing.
After the bead blasting I used aluminum polish on the hosuing and it looks great.
Thank you everyone for the help.
Advanced
Joined: Nov 2006
Posts: 73
Likes: 0
From: Linden NJ
Never had a problem removing one with a 1/2 inch drive impact. The short fast burst with the gun should be enough to break it free. If you dont have an impact gun, just take it to a local garage. Should have it off in 10 seconds or less and i doubt if they will charge you a fee for doing it. Offer a tip or box of donuts for the workers as a nice gesture. I done this for all my customers n/c while i still had my garage.
good luck.........
good luck.........