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
:

frozen carb intakes

Welcome Guest, Log in or Register
Author 
old don

10-27-2004 15:36:46




Report to Moderator

I just visited a post by Jay in ND about erratic engine rpms on a relatively healthy M. I'm not sure his is the same problem but I do recall in my years at home we had to deal with frozen intakes on our gas H,M,SM and the neighbors gas SMTA. They would start ok but the longer they would idle they would start to choke down in cold mornings and the carbs would start to build up frost on the outside some times and sometimes not but to correct it dad would throw hot water on the carb and it would be ok immediately. Never really got a grasp on that one except I only assume it had to do with the velocity of air going into the carb causing a vortex cooling effect much like pulling tractors with water and alcohol. Whats up with that? Allen and CNKS help me out here.

[Log in to Reply]   [No Email]
old

10-27-2004 17:02:51




Report to Moderator
 Re: frozen carb intakes in reply to old don, 10-27-2004 15:36:46  
You got what happens right and most of the time it happen on cold wet/hymid days. There are a number of ways to stop/slow down the problem. I have that problem all the time but after about 30 minutes it goes way on its own because the intake get warm then



[Log in to Reply]  [No Email]
catmandoo

10-28-2004 18:32:56




Report to Moderator
 Re: frozen carb intakes in reply to old, 10-27-2004 17:02:51  
mine will do it on 85 degree days out mowing,i"ll start to notice a little black smoke out the pipe and bend over and look at the carb and she"s frosty where the carb meet the intake,just idle down for a little bit til it melts and away i go again,usually only does it once or maybe twice and then its fine til i"m done.



[Log in to Reply]  [No Email]
old don

10-29-2004 06:09:55




Report to Moderator
 Re: frozen carb intakes in reply to catmandoo, 10-28-2004 18:32:56  
I have seen this phenom in other applications too. I worked in a plant that had water ring vacuum pumps that drew tremendous vacuum and at the reduced end we would get ice chunks in the lines in the middle of July, wound up wrapping them with heat tapes. We were told it was a vortex cooling effect. I hope maybe some knowledgeable person would explain this to us because I think anyone who has driven or owned and updraft carburator has experienced this more than once. I think even earlier tractor engineers couldn't fix it either because I notice some of the old big block gas tractors had a tube running from the exhaust manifold down to the carb housing to warm it up.

[Log in to Reply]  [No Email]
scotc

10-31-2004 10:21:33




Report to Moderator
 Re: frozen carb intakes in reply to old don, 10-29-2004 06:09:55  
For a liquid to change into a gas, it needs heat. The liquid(fuel) inside the carb is turned into a gas(the fuel/air mix). The fuel vaporizing pulls the heat out of the surrounding metal of the carb. The moisture in the air then condenses on the carb and freezes. Not real good with chemistry, could be from saying things in an understandable manner instead of all the technical crap they layed on me.

[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