if your tractor doesn"t have a "draft tube" to ventilate the crankcase, the breather cap will have some "smoke coming fromm it for awhile after a cold start up. There"s condensate in the oil that will evaporate as the crankcase oil heats up and then just vaious vapors from the oil. The rings are not at there operating temperture nor are the cylinders so there is some blow by also. When the engine is at operating temprature and the oil has hit it"s steady state temperature most of what you will see come out the breather is blow by caused by worn rings. If your exhaust smokes at idle and not at high rev"s under load, then the valve guides and seals are worn. If the exhausts smokes under load then it"s the oil control rings that are worn. My guess from your description("...going from 3rd to 4th gear the tractor will belch out a plum of smoke and then clear up.") is yo when you step on the clutch to shift, the manifold vacuum increases and the pulls oil past the guides ands seals, whic are worn" into the ylinder and then you see smoke. As the vacuum decreases when picking up load(the throttle opens) the problem goes away. I think you might be looking at some cylinder head work in the future. If your plugs aren"t fouling and the oil consumption isn"t excessive, then I wouldn"t worry about it.
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We've kept the same low rate for six years. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]
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.
About this site - Yesterday's Tractors is your one-stop source for antique tractors. If you use antique tractors, collect antique tractors, or just enjoy looking at antique tractors, welcome to our site! Join more than 275,000 other classic tractor enthusiasts from all over the globe. We have many resources for antique tractor enthusiasts available including photos, classified ads, more than 24 antique tractor forums, show guide, values, specs and much more. Bookmark this site and come back often. Thanks for stopping by! Feel free to use our feedback form to send us your comments, suggestions and ideas.
