Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
  
Discussion Forum
:

Coil polarity

Welcome Guest, Log in or Register
Author 
mike

02-12-2003 12:20:41




Report to Moderator

my new old tractor is 6v positive ground and has an FM magneto that was converted to a distributor. The coil has the positive post conneced to the battery and the negative goes into the magneto. Is this the right way or should I reverse the coil leads? Tractor runs ok but spark is pale yellow...maybe because the leads are backwards? Any thoughts?

thanks,
Mike




[Log in to Reply]   [No Email]
Steve in N.J.

02-12-2003 17:24:01




Report to Moderator
 Re: coil polarity in reply to mike, 02-12-2003 12:20:41  
Mike,
Dan is correct on the hookup for positive ground wiring systems. Just switch the wires. And yes, on some coils, (depending on how tightly they're wound on the secondary side) will put out the correct amount of power(more)when current is being fed from primary coil winding to secondary coil winding the way it's designed. On some coils, if you check the spark after it's switched, you can actually see a more whiter type spark than yellow. Just watch ya don't get zapped! The situation is more critical with 12V systems if the wiring is run backwards. I've seen some coils fail after being hooked back up the correct way after they were run for a long time wired wrong... Steve B.

[Log in to Reply]  [No Email]
DanD.

02-12-2003 12:33:11




Report to Moderator
 Re: coil polarity in reply to mike, 02-12-2003 12:20:41  
It would be best to have the coil hooked up correctly. The "-" terminal on the coil should go to the - terminal of the battery. The + terminal should go to the points because when the points close, it is effectively connected to the + terminal of the battery. All you have to do is reverse the wires. Don't know if it will make a big difference though.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2020 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy