Posted by Steve@Advance on September 18, 2021 at 13:25:52 from (99.190.215.237):
In Reply to: M Farmall sputter posted by roy prins on September 18, 2021 at 11:17:38:
Kinda unusual for valves to stick on a running engine, and then unstick on their own. Might check the valve lash if it hasn't been checked since it went back together. That would give you a chance to look the valve train over. Be sure all the valves are opening equally and no broken springs or bent pushrods. But I'm guessing all will be well, as valve problems generally are not intermittent.
Intake backfire is typically caused by lean mixture, weak spark, cross fire, retarded ignition timing, a flat exhaust cam lobe will cause rhythmic backfire under load.
Cross fire can be caused from condensation under the distributor cap. If there is water trapped in the distributor, often it will boil up when the engine gets warm and condense under the cap. Then it dries out when it cools, repeats if still water in the distributor.
Weak spark can be failing points, failing condenser (very common bad new in the box), failing or wrong coil (wrong coil or coil/resistor combination).
Worn distributor bushings can cause the point setting to change, do strange things. Also can a stuck or sluggish centrifugal advance will retard the timing.
Have you checked the fuel flow through the carb bowl when it acts up? Should get a steady flow through the drain plug.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 ]
Today's Featured Article - A Lifetime of David Brown Tractors - by Samuel Kennedy. I was born in 1950 and reared on my family�s 100 acre farm. It was a fairly typical Northern Ireland farm where the main enterprise was dairying but some pigs, poultry and sheep were also kept. Potatoes were grown for sale and oats were grown to be used for cattle and horse feeding. Up to about 1958 the dairy cows were fed hay with some turnips and after that grass silage was the main winter feed. That same year was the last in which flax was grown on the farm. Flax provided the fibre which w
... [Read Article]
Latest Ad:
For sale Farmall super A tractor is complete and has just been setting for awhile,it was running when pulled out of the barn,shouldn’t take to much to get it going asking 1100.00
[More Ads]
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.
