Backwards Alternator?

Reply Subscribe

Thread Tools

Search this Thread

May 24, 2010 | 09:40 AM

armybyrd

Thread Starter

Drifting

Joined: Jun 2007

Posts: 1,454

Likes: 15

From: Martinsburg WV

Backwards Alternator?

My '88s about due for a new alt-since my supercharger kit has the alt mounted backwards is there a particular brand that is better suited for this setup or is the direction have no effect on it?

May 24, 2010 | 02:43 PM

ShannonO

Cruising

Joined: May 2009

Posts: 10

Likes: 0

Buy whatever alt you want, just be sure to switch the alt fan over to the new alt.

May 24, 2010 | 06:39 PM

armybyrd

Thread Starter

Drifting

Joined: Jun 2007

Posts: 1,454

Likes: 15

From: Martinsburg WV

By alt fan do you mean the blades direction?

May 24, 2010 | 07:06 PM

PAINTER MAN

Burning Brakes

Joined: May 2004

Posts: 1,230

Likes: 27

From: Athens Ohio

I don't know what he means about switching the fan to the new alternator. Most alternators come with fans. With that said, I did have a problem with my fan. With the Powerdyne kit you may find the fan runs very close to the idler pulley. Mine did and the fan blades would flex and hit the idler. You could see the marks on the fan. I ordered a custom fan made out of billet alum that had no flex to it and fixed the problem.

May 24, 2010 | 09:38 PM

ShannonO

Cruising

Joined: May 2009

Posts: 10

Likes: 0

Yes, the new alt comes with a fan, but when you install the ProCharger kit, they provide a special fan that has the blades going the opposite direction. Make sure you re-use that fan.

May 24, 2010 | 09:45 PM

Vette Fast

Racer

Joined: Jul 2006

Posts: 420

Likes: 1

From: Zolton NJ

Quote:

Originally Posted by armybyrd

By alt fan do you mean the blades direction?

Yes. The fan on your current alt. should have been replaced with a fan that came with the supercharger kit that while spinning in reverse will cool the alt. You will need to remove the fan from your current alt. and place it on to the new alt. In addition you may need to increase the size hole in the new alt for mounting if your kit is a procharger.