alt. pulley change

[nuguy]

I see now my alternator is narrower than the tractors pulleys and they make a wider one to go on the Alt...before I go boogerin things up I thought I would check here first, does the pulley on the alt just unscrew ? and it comes off or do I need to insert a pin to hold something to keep it all from spinning ?...or ?...
48, 8n, front mount, early with 12v conversion, new alt
Thanks

 

[Brent 41 9N]

An air impact wrench will loosen it without having to hold anything. If you try and bind it, you could break something - been there done that.

 

[ooticamitica]

+1 to air impact wrench works wonders, i normally leave the belt on and take it off when the nut gets loose. IF you dont have an impact wrench take the alt off and go to a shop they would probably do it for free

 

[souNdguy]

ditto on the impact wrench.. works good..

soundguy

 

[nuguy]

(quoted from post at 18:41:09 03/30/10) ditto on the impact wrench.. works good..

soundguy

K, I think I have an impact wrench somewhere around here, it does come off counter clockwise correct ?

 

[souNdguy]

should come off reverse of how the alt spins.. IE.. engine spinning her won't spin the nut loose.

soundguy

 

[Greybeard - PA]

AND . ,. ,. when you get your new pulley with the correct belt width, make sure it is a SMALL pulley - diameterwise. The pulleys that are the same size as your original d.c. generator will turn your alternator too slow, and you will lose the advantage of charging at idle speeds. I try to find the smallest doameter pulley I can for the belt size.

Good Luck
Dave Erb
New Holland, PA