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#1142944 01/04/2016 5:07 PM
Joined: Dec 2015
Posts: 43
6
Wrench Fetcher
Wrench Fetcher
6 Offline
Joined: Dec 2015
Posts: 43
How or can I tell if a gen. is 6V or 12V? Also, can I replace the large groove pulley on my 6V gen. with a small groove pulley? Not sure if the gen. I have with the small pulley is 6V or 12V. I am swapping the 216 for a 235 and the 235 had a 12V coil and I assume a 12V gen. Thanks!

Joined: Dec 2015
Posts: 43
6
Wrench Fetcher
Wrench Fetcher
6 Offline
Joined: Dec 2015
Posts: 43
I have decided to go with the 12V gen. since the coil, points, etc. are already 12V. I will change to a 12V regulator and use ballast resistor on the fuel gauge and heater motor. After changing all the light bulbs, I should be good to go. Any thoughts or suggestions will be appreciated!

Joined: May 2005
Posts: 8,877
G
.
.
G Offline
Joined: May 2005
Posts: 8,877
Pulley's are interchangeable.
Delco tags are red for 12V and black for 6V
https://www.stovebolt.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=729624&page=1

12V external resistor coil could run just fine on a 6V system with no resistor, so don't use coil voltage to find voltage output of the generator.


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-
Joined: Sep 2001
Posts: 29,262
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,262
Originally Posted by 6XChevy
I have decided to go with the 12V gen. since the coil, points, etc. are already 12V. I will change to a 12V regulator and use ballast resistor on the fuel gauge and heater motor. After changing all the light bulbs, I should be good to go. Any thoughts or suggestions will be appreciated!
You might want to use a Runtz style resistor on the input side of the fuel gauge.

This resistor/reducer should work fine with 6v motors and other 6v accessories/options.

Joined: Dec 2015
Posts: 43
6
Wrench Fetcher
Wrench Fetcher
6 Offline
Joined: Dec 2015
Posts: 43
Thanks for the suggestions. Does using the 12V gen. and coil provide that much of a "hotter" spark? The current spark appears to be weak.


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