Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

help!!! want start, 9n ford


 
Post new topic    
View previous topic :: View next topic  
Author Message
bouis
New User


Joined: 10 Nov 2009
Posts: 2


Report to Moderator

PostPosted: Tue Nov 10, 2009 1:08 pm    Post subject: help!!! want start, 9n ford Reply to specific post Reply with quote

i have a 9n ford. i changed it over to 12v system complete(12v alternator,12v coil,electronic ignition kit and all new wiring). got it running great. have 2 hrs max on run time and now will not start. i have 12v to the coil. no spark at the plugs.has to be the coil or electronic ign. parts. how do i test to see which one is the problem?
thanks
 
Back to top
View user's profile
Bruce (VA)
Tractor Guru


Joined: 24 Feb 2003
Posts: 13039
Location: Old Church VA

Report to Moderator

PostPosted: Tue Nov 10, 2009 2:47 pm    Post subject: Re: help!!! want start, 9n ford Reply to specific post Reply with quote

I can help you w/ part of your problem.

Coil problems are difficult to diagnose. For starters, round coils are pretty robust & square coils arenít (because of the difference in insulation used), but neither one will hold up to a poorly done 12v conversion that allows too much current to the coil. Too much current creates heat which melts the insulation. There are a few ways to see if a coil is bad, but itís not possible to determine if a coil is good w/o some expensive testing equipment. If you detect a dead short or high resistance in the coil w/ an ohm meter, itís bad. If itís cracked, itís bad. If a sidemount coil w/ battery voltage to the primary will not jump a ľĒ gap from the secondary wire to the block, itís bad. But, here is the hard part: even if you do not detect a short, even if it will produce a spark, even if itís not cracked, that doesnít mean the coil will work when itís hot & under a load. So, itís a process of elimination. If the tractor starts & runs fine for 30 minutes or an hour then cuts off & refuses to re-start, and you checked for spark at the plugs & it had no spark at all, AND you have the correct voltage at the coil thatís a good sign that you have a bad coil. Let it cool off, restart it & if you have a good spark, odds are itís a bad coil. But, even then, you might end up w/ a spare coil on the shelf!

So, three questions.

What resistors are you using? You could have too much resistance.....or not enough resulting in a melted coil. (as well as an EI if you left the key on)

Next, what EI kit did you use? Troubleshooting is different based upon the make.

Finally, are you sure the battery is fully charged? The EI does not like low battery voltage.

That's as far as my abilities allow me to go troubleshooting an EI. I've never seen a need to convert any of my 4 N's to 12v, much less add EI, so I can't help w/ that. But, other folks around here do have EI's; I'm sure they will be along to help out.
50 Tips

 
Back to top
View user's profile Visit poster's website
HCooke
Tractor Guru


Joined: 29 Sep 2006
Posts: 4184
Location: Missouri

Report to Moderator

PostPosted: Tue Nov 10, 2009 3:39 pm    Post subject: Re: help!!! want start, 9n ford Reply to specific post Reply with quote

If you kept the points you could remove the EI and reinstall them, If it runs then your new EI is not working.
 
Back to top
View user's profile
bouis
New User


Joined: 10 Nov 2009
Posts: 2


Report to Moderator

PostPosted: Wed Nov 11, 2009 1:44 pm    Post subject: Re: help!!! want start, 9n ford Reply to specific post Reply with quote

thanks for the info
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> Ford 9N, 2N, 8N All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

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