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

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Farmall & IHC Tractors Discussion Forum
:

Condensor farmall b

Welcome Guest, Log in or Register
Author 
jeff lane

09-03-2007 13:39:27




Report to Moderator

Hey,
I believe i have a bad condensor. No spark. Would anyone know the specs on the condensor itself? I can test I just need the numbers.
Thanks,
jeff




[Log in to Reply]   [No Email]
JSharp

09-03-2007 20:55:53




Report to Moderator
 Re: Condensor farmall b in reply to jeff lane, 09-03-2007 13:39:27  
Condensors have been about the same value for years because that's the value required to keep the points from pitting. That's it's prmary function.

You can remove it and you should have spark but you may have spark not just when the points open but also when they close. Spark will be erratic but you'll have spark provided everything else is in order.
If you don't have spark the things to check are straightforward. Make sure you have proper voltage at the coil. Make sure you have coil voltage at the points when they're open and zero volts at the points when they're closed. Make sure the points are clean. Make sure the condensor isn't shorted.
If all of the voltages are correct you should be able to manually open the points and get a spark from the coil. If not, the coil is bad.

[Log in to Reply]  [No Email]
jeff lane

09-03-2007 20:31:38




Report to Moderator
 Re: Condensor farmall b in reply to jeff lane, 09-03-2007 13:39:27  
Thanks to all that responded. I have access to a 'fancy' tester however without the (I believe microfarad) spec I'm kinda stuck. So that leads me to my next question. If the capacitor is good, and I still don't get spark, any suggestions as to what it might be? I have a Case dealer fairly close so I'll get a new one. Also, I need a new float,dual, where would you suggest to get one (price minded). thanks again.

[Log in to Reply]  [No Email]
Gene-AL

09-03-2007 19:14:54




Report to Moderator
 Re: Condensor farmall b in reply to jeff lane, 09-03-2007 13:39:27  
1958 Chev shop manual says 0.18 to 0.23 microfarad. I wonder if others in the Kettering era would be much different, tractors included. Voltage breakdown rating wasn't specified.



[Log in to Reply]  [No Email]
El Toro

09-03-2007 16:02:16




Report to Moderator
 Re: Condensor farmall b in reply to jeff lane, 09-03-2007 13:39:27  
I would replace it and if the tractor starts you know its defective. Hal



[Log in to Reply]  [No Email]
Janicholson

09-03-2007 14:48:32




Report to Moderator
 Re: Condensor farmall b in reply to jeff lane, 09-03-2007 13:39:27  
If it reads no resistance when first hooked up to a regular meter style Ohm meter, when turned either way it is toast. If it reads infinite resistance hooked either way it is toast. It should (when first attached) read a few ohms then taper to almost infinite ohms. This is the battery in the ohm meter charging the capacitor (that is what it is). This really does not dynamically check the breakdown voltage, or other higher frequency response of the condenser, but it can allow you to toss an open, or shorted one. A condenser checker is not a home product, and is rare because they are easier to replace than check. (condensers do go bad, but are the most over replaced for no reason element in the ign system) JimN

[Log in to Reply]  [No Email]
John T

09-03-2007 15:49:48




Report to Moderator
 Re: Condensor farmall b in reply to Janicholson, 09-03-2007 14:48:32  
Jim, I know what youre saying buttttt ttt Ive expereinced the old fashioned "kickback test" (like youre thinkin) only works on analog ohm meters (for me at least so you actually observe the needle swing versus flashing numbers lol) and thennnnn nn its also necessary to use like the R x 10,000 scale to observe the initial charge up (where meter fitst swings towards 0 ohms as shes drawing charge up current) but then "kicks back" to infinity ohms (open circuit) once the condensor is charged.

I tell people to first set the meter on the R x 1 range and it should read infinity ohms PERIOD (or its a bad shorted condensor). NEXT to observe the "kickback" set it on the R x 10,000 range (discharged condensor) and when you attach the leads it ought to initially swing towards 0 ohms (likely never reach it however) but then kickback towards infinity ohms once shes charged up.

As you indicated, this ONLY tells if a condensor is BAD (like shorted or dont draw initial charge up current) but does not tell you if its good i.e. she can breakdown at higher voltage and just cuz it passes the ohm meter test dont really tell you if its good or not as a true capacitor checker which shows capacitance n leakege etc

Your thoughts please,,,,,can you use a digital meter n tell as much????? ????? Im NOT experienced with a fancy digital meter is why i ask, I prefer the old reliable Simpson 260 wooooo hooooo oo

Take care

John T

[Log in to Reply]  [No Email]
Janicholson

09-03-2007 21:12:25




Report to Moderator
 Re: Condensor farmall b in reply to John T, 09-03-2007 15:49:48  
Dear John, The first sentence in my post (on my way to pick up my son's 4H garden tractor at the State fair. It intends a needle type meter. I agree with every thing you said. JimN



[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 © 1997-2023 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