Re: All Fuel C ?

Posted by Jim Becker on July 24, 2011 at 09:32:27 from (173.57.144.251):

In Reply to: All Fuel C ? posted by IndianaRed on July 24, 2011 at 05:00:41:

For tractor models that had both distillate and kerosene options, I think the main difference between the two was compression ratio. They both needed the hot maniford, carb with an adjustable main jet etc. If you check the parts catalogs, you will find different heads and/or pistons for the two versions. Higher compression ratios for any fuel improve efficiency but is limited by preignition. Since each of the 3 fuels has a different octane rating, the compression limit is different for each fuel. As I recall, distillate requires a lower compression ratio than kerosene.

A company can produce an "all-fuel" engine by building it to the lowest grade fuel. Higher grade fuels in will be used less efficiently than if used with a higher compression ratio. In the '40s and '50s, most gasoline engines were designed for about 70 octane fuel. Octane rating of regular gas has been in the high 80s for a long time. That is what now allows substitution of higher compression pistons.

Replies:

Add a Reply Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Optional Video Title: Optional Video URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.   Advanced Posting Tools   Upload Photo  Select Gallery Photo  Attach Serial # List  Return to Post

TRACTOR PARTS	TRACTOR MANUALS

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 ]