B&D, what make, model and year do you have? Just because it doesn't have an EGR valve doesn't mean it doesn't have Exhaust Gas Recirculation. Without EGR, timing has to be retarded to prevent pinging AKA spark knock. Bringing the timing back increases fuel usage, and no EGR increases oxides of nitrogen, the main ingredient in photo chemical smog. Catalytic converters have no effect on oxides of nitrogen. GM has eliminated EGR valves by going to variable cam timing. By going to variable cam timing the "power band" of an engine can be extended over a broader RPM range. EGR can be done more accurately with cam timing than introducing it through the intake where no 2 cylinders get the same amount. Removing a properly functioning EGR valve from an engine will not ever increase fuel economy or power. Most of the time it will have an adverse effect.
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 - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
... [Read Article]
Latest Ad:
one 8n and one 9n tractor. totaly restored,pretty much everything is new. one 6ft blade good shape.
[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.
