Just wanted to say thanks for the replies. After posting the question I got to thinking about the whole situation, and talked to dad about what happened too. Given what I saw with the idle and timing both being so far off,etc, etc, and the way it was running immediately after I put the carb back on, but before I set the timing and idle speed, I've pretty much come to the conclusion that it as to be carbon deposits heating up and keeping it running. That's really the only thing that makes sense as regardless of wether the throttle shaft was stuck, it had an air leak, etc, etc, it should still shut down when the key is turned off. Not because the fuel or air flows stop, because they actually don't until the engine completely stops turning. Think about it this way. You can put the engine at wide open throttle and hit the key and it will die because there is no spark/heat to ignite the mixture. With a glowing ember of carbon in one, two, or in this case what appears to be three cylinders, the mix doesn't need a spark to make enough heat to ignite it. Give that it will self perpetuate the problem because each explosion will keep the ember hot which causes the next explosion...and on and on.... In that case it's like a runnaway Detroit and the only way to shut it down is to remove all the fuel or completely block off the intake air.
I've already suggested the use of some Seafoam to the guy but I'll give him a call tomorrow and suggest the water mist idea. I've heard it works so why not. Anything is better than having to choke it down every time you want to shut it off.
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 - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.
