If the valves are not closing that either means you have poorly adjusted tappet gaps, burnt valves or carbon build up on them. None these are really the result of a manifold gasket.
And the weak point of the gasket is not between the exhaust and intake ports, that is actually their strong point. The bolts are in between these ports and most of the clamping force is here. It would be more likely that the gasket would leak from the top and bottom. Meaning that they would suck air on the intake and then it make the engine idle high, and he would have noticed this when he sprayed carb cleaner around the manifold.
And there is really now way if it could happen , but if exhaust gasses where somehow making there way over and into the intake port it would cause the engine to run rich and the plugs may appear a little wet when he took them out. But then engine runs just fine when you put a little exhaust gas back into the intake , as in the whole principle of EGR. Exhasut gasses are recirculated into the intake to lower combustion chamber temps in an effort to hold off detonation allows further timing advancement, equalling more power and better fuel economy.
If you look at your manifold on your 140 you will see what I am talking about when I say it is almost impossible for the manifold to leak exhaust gasses across the manifold gasket area.
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 Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[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.
