|
Farmall & IHC Tractors Discussion Board |
Re: Re: Lead additive
[ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Bill Jones on December 15, 2001 at 23:06:57 from (63.17.133.131):
In Reply to: Re: Lead additive posted by IN Jones on December 15, 2001 at 15:48:31:
Not to Make anyone mad but,Tetraethyl lead was discovered by a German scientist in 1854.A technical curiosity,it was not used comercially on account of its known deadliness.It is highly poisonous and even casual contact with it was known to cause hallucinations,tremors,difficulty breathing,and death,bad stuff.On Dec.9,1921,a man named Thomas Midgley,working in the labs of General Motors Research Center in Dayton,OH,reported to his boss,Charles F.Kettering,that he'd discovered that Tetraethyl lead-a little known compound of metallic lead (referred to as TEL),worked to reduce "knock" or "Pinging" in internal combustion engines.In 1912,GM's Cadillac had an alarming tendency to knock-a sharp metallic sound,hinting at the possible damage being done to the engine.Kettering was convinced that the problem was the fuel,and assigned Midgley the task of solving the problem.The solution? Iodine worked.but it was highly corrosive.The best anti-knock was (and is) ethyl alcohol ,but it was expensive to produce and big oil didn't like it for various reasons.As long as compression was low,the knock wasn't a problem. Lower octane and lower compression meant less power and efficiency,but since higher compression meant higher octane,the oil companys didn't want to spend more money to refine these fuels,although the technology was there(thermal cracking).The problem with premature combustion of the fuel/air mixture was solved by adding 1 part TEL to 1000 parts of gas,to improve octane and stop "knock",not to lubricate the upper engine (valves etc.),if there are lubricating benefits,they are minor at best.The TEL is an octane booster,used in high compression engines.It is still being made in Indiana for export and used in Low-Lead piston engine aircraft applications(100LL),here in the states.I've heard all kinds of things concerning this subject,so far it's mostly OWT (old wives tales)as these tractors have been running on no-lead since 1986,when TEL was banned in the U.S.,with,at least around all the tractors I've been around,No problems due to lack of TEL. These older tractors were supposed to have at least 76 octane in them.so with the lowest grade now of 87,even more power is possible out of these engines if they are maintained properly. You should have no problems with your tractor and unleaded gas. Sorry to be preachy,but this was an old term paper subject of mine.Keep your wheels turning and your bottom shiney! :^) BillJ
Follow Ups:
Home
| Forums
Today's Featured Article -
An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
... [Read Article]
Latest Ad:
Variable pulley for case 1530 skid loader
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co.
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. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|
