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

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Allis Chalmers Discussion Forum
:

Condenser question

Welcome Guest, Log in or Register
Author 
Hand Crank

09-15-2006 17:45:27




Report to Moderator

Will a bad condenser keep an engine from starting?
Just what is the function of a condenser?
Thank`s Don.




[Log in to Reply]   [No Email]
souNdguy

09-16-2006 22:31:30




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
Think of it as a switch debouncer.. ( among other things.. )

Soundguy



[Log in to Reply]  [No Email]
John T

09-17-2006 14:24:08




Report to Moderator
 Re: Condenser question in reply to souNdguy, 09-16-2006 22:31:30  
Good analogy, how bout kinda like a "shock absorber" lol

John T



[Log in to Reply]  [No Email]
souNdguy

09-17-2006 17:21:06




Report to Moderator
 Re: Condenser question in reply to John T, 09-17-2006 14:24:08  
While it literally 'absorbs' shock of the dc variety.. I think that would be more descriptive of it's basic operation.. i.e. charge collector, condensor.. etc. The 'switch debouncer' is more indicative of it's operation inside an ignition circuit, at least for primary purpose anyway, as in that circuit, it's wearing a few hats.

I like the 'shock absorber moniker.. .. it's a very literan description.

Soundguy

[Log in to Reply]  [No Email]
John T

09-16-2006 09:44:14




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
Hand Crank, As well stated by the other gents below with which I agree and to answer your question:

YES its possible (depending on how "bad") a bad or incorrect sized condensor might prevent starting ESPECIALLY on a Magneto Ignition. She can still spark WITH NO CONDENSOR but the sparks weaker and the points would burn up quickly. Just like any other short at the points, a shorted condensor causes NO SPARK. The correct value and working condensor maximizes spark gap energy by controlling the rate of collapse n discharge of the coils stored energy PLUS saves the points from premature burn up cuz it absorbs (its like a big open bank waiting to accept electrons) some of the energy and reduces the arcing n resultant burning across the points.

Its possible to do a very preliminary test of a condensor using only an analog ammeter to see if its shorted or theres not much capacitor action at all BUTTTTT T that can only tell you if its BAD BUT NOT if its good..... ....that takes a true condensor tester.

If in doubt for no more then they cost TRY A NEW PROPER SIZED ONE is my advice.

John T

[Log in to Reply]  [No Email]
Bob

09-16-2006 08:14:21




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
The condensor stores and releases energy, preventing "arcing" at the breaker points.

Without a condensor, the energy it stores and releases back into the coil is dissipated as HEAT from the arc across the breaker points, which WASTES energy that would otherwise contribute to a "HOTTER" spark.



[Log in to Reply]  [No Email]
Kent of SW MO

09-16-2006 06:45:40




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
The function of a condenser in an ignition circuit is to cause the magnetic field, that has built up in the coil when the points are closed, to collapse faster which yeilds a hotter spark. Open cap weak spark. Shorted cap no spark. when you have a weak spark always replace the cap first. It is the cheapest and normally the fasted repair to do. If this does not fix the problem them you look further.

Kent

[Log in to Reply]  [No Email]
old

09-15-2006 19:22:40




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
Easy way to explain a condenser is that its a very fast charge and fast discharge battery. Thats not 100% correct but gives you an idae of what it does. Also most of the time when one goes bad the points will also go bad at the same time because they get burned badly. A condenser sort of controls have much the points have to do and helps keep the points from takeing all the volts/amps. So when a condenser goes bad the points burn out fast because they are takeing all the volts/amps instead of being buffered by the condenser

[Log in to Reply]  [No Email]
JMS/MN

09-15-2006 18:47:17




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
Function of a condensor is to 'condense' or 'store' electrical charge- then release it at the proper time. Sort of like a 'big bang' when necesary. Charge builds up in storage and then is released to fire the plug.



[Log in to Reply]  [No Email]
Gerald J.

09-15-2006 18:23:27




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
If the condenser goes open, the spark will be wimpy and yellow.

If the condenser shorts, there will be no spark at all.

In between a poor condenser can lead to poor spark.

The condenser protects the points and makes the coil ring to get a fat blue spark that is better at igniting the fuel than a thin yellow spark.

If the condenser value is off, it will lead to material transferring from one point surface to the other. Either case makes the points last less well. No condenser or open condenser erodes the points most rapidly.

Gerald J.

[Log in to Reply]  [No Email]
Hand Crank

09-15-2006 18:23:21




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
Thank`s for responding Dick!
The tractor is a 1949 WD.It has a Dist.



[Log in to Reply]  [No Email]
Dick L

09-15-2006 17:54:30




Report to Moderator
 Re: Condenser question in reply to Hand Crank, 09-15-2006 17:45:27  
It can. Does the tractor have a magneto or distributor?



[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