Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

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
Salvage

Community
Discussion Forums
Project Journals
Your Stories
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

  

Re: Points ignition causing alternator damage?


[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]

Posted by n9viw on September 29, 2010 at 12:01:14 from (75.105.62.178):

In Reply to: Points ignition causing alternator damage? posted by n9viw on September 19, 2010 at 13:42:10:

So, I replaced the copper wires with the spiral-wound wires last week, and also replaced the condenser and points in the distributor. I re-timed the distributor to #1 TDC, or just slightly after (as per the owner's man), and got the old girl fired off. I had to play around with the carb mix, as she didn't want to rev up, but kept backfiring and burbling through the oil-bath air filter. What a mess that made! I got it going though, and she sounded better and started faster than ever she did when we first got her.

Today I rebuilt the alternator, needing only to replace the regulator. I replaced the diode trio and brushes at the same time, just as a matter of course. Since I had the DVM out for checking the old rectifier and diode trio, I checked the coil's primary resistance. Hold on to your hats: 0.8 ohms!

By comparison, an old can-style coil from one of the Jeeps measured 1.5 ohms on the primary, and the resistor mounted to its bracket also measured 1.5 ohms. Combining them gives 3 ohms, which, at 12v, will net only 4 amps, whereas I'm pulling MORE than 12 amps through the points! Yikes, no wonder the condenser and points were trashed!

So, back in goes the old coil and resistor, and the admonition is reinforced: if it ain't broke, don't fix it. I was just trying to use what was on hand, fie on me for being a cheapskate. I've got the new plug wires, that should help, and with the alternator charging again (presumably; I haven't run the rebuilt unit yet), I'm off and mowing.

Thanks to all for your help!

Nick


Replies:




Add a Reply

:
:
: :

:

:

:

:

:

: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.


 
Advanced Posting Tools
  Upload Photo  Select Gallery Photo  Attach Serial # List 
Return to Post 

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


Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro ... [Read Article]

Latest Ad: Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request [More Ads]

Copyright © 1997-2024 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