This site uses cookies to maintain login information on FarmallCub.Com. Click the X in the banner upper right corner to close this notice. For more information on our privacy policy, visit this link:
Privacy Policy

NEW REGISTERED MEMBERS: Be sure to check your SPAM/JUNK folders for the activation email.

Installing an alternator on a cub

Batteries, magnetos, distributors, wiring harnesses and more.
User avatar
Boss Hog
Cub Pro
Cub Pro
Posts: 10290
Joined: Mon Oct 24, 2005 8:35 pm
Zip Code: 23962
eBay ID: dmb2613
Circle of Safety: Y
Location: VA. Randolph

Installing an alternator on a cub

Postby Boss Hog » Thu Dec 24, 2009 2:04 pm

This is a very EZ process, Get the materials ready first and you will have no problems.
1. GM single wire alternator
2. 12 volt coil with built in resistor Part no from NAPA under $20
3. A 12 volt fan assy , This has a larger pulley and turns the alt. fast enough to excite itself
4. A 22 in belt
5. You will need to fabricate a mounting bracket for the Alt.
Remove the old generator, regulator and coil.
Replace coil with the new 12 coil.
Picture220-1.jpg

Picture221-1.jpg
This is a bracket I got from a forum member
The top pic shows the 12 volt fan

Picture227-1.jpg
This is the old 6 volt fan you can see the difference in the pulleys, pay no attention to the belt sleeve I had a 22 and a 23 in out there

Picture228-2.jpg
Make sure the belt is running true

Picture223-1.jpg
I had to bend the top bracket a bit as you can see

Picture222-1.jpg
Also make sure that the fan on the alt. clears the top bracket.
Hook the wire from the amp gauge that went to the regulator to the lug on the back of the alt. You will also need to switch the wires on the amp gauge to make it show charge instead of discharge, as now it is negative ground and not positive ground

Picture230-1.jpg

Picture231-1.jpg
As you can see the alt fits nicely inside the hood.

I hope this helps someone. all together I have less than $100 in the change over as I had a good 12 volt battery

Boss
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg

SPONSOR AD

Sponsor



Sponsor
 

Return to “Ignition/Electrical”

Who is online

Users browsing this forum: No registered users and 1 guest