Hugh, I would have to believe the Nebraska tests. I think tractor companies - I know Oliver was - were trying to develop as fuel efficient gas engines as possible during the late 50's and early 60's not knowing yet that diesel would be come the fuel of choice. Also, the non direct injection engines were not as fuel efficient as direct injection. Usually gas tractors are 10 - 13 hp-hrs/gal(us). Diesels as 12-18. So a 560 Cockshutt at almost 18 hp-hrs/gal would be almost twice as efficient as a low compression gas. Also, the later IH's and others diesels did better on fuel with direct inj and higher comp. We also know that IH was a leader in Torque Rise as RPM falls - away ahead of others during this period. Here is a link to a Neb test of the 786 which show much better eff - probably higher compression??. http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=2758&context=tractormuseumlit Hugh, I have always enjoyed your posts. Enjoy those IH's!! Neil
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 - Pitfalls of Tractor Engine Rebuilds - by Chris Pratt. The first pop after you have put the machine together with your own hands is exciting and pleasing. The whole experience can be marred if one moves too fast and makes too many assumptions that they can just use "as is" some parts they should be closely scrutinizing and possibly attended to. In such cases, rework makes what could have been a fun project turn into an irritant or even a nightmare. Minor Irritants To give you an example of an minor but irritating proble
... [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.
