[AJD] Antique-johndeere Digest, Vol 46, Issue 5

[J.R. Hobbs]

Did a little math (not my strong suit, but bear with me) concerning the intervals of firing impulses on a two-cylinder tractor. 
   
  Let's assume that it's a Model "A", running at it's full rated load of 975 rpm.  That meant that the crankshaft is revolving 16.25 revolutions per second. Let's assume that we're starting at the precise moment No. 1 cylinder has fired. No. 2 cylinder will then fire .03076 seconds later, then there will be an intereval of .0923 seconds before No. 1 cylinder fires again. I'm sorry, but I cannot see where such minute intervals in power impluses, especially smoothed by a heavy flywheel, could possibly be harmful to a belt-driven machine, especially with the belt itself acting as an additional shock absorber.
   
  I've just seen too much film of JD tractors smoothly running threshing machines and other belt-driven machines to buy into that nonsense that a two-cylinder tractor will damage them. Again, a story perpetrated by the Binderoids, I think.

Mitchell Daly <md31043 at msn.com> wrote:
  You know Duane, I've got pictures of that D up on the 4 coke bottles at Expo 
III. It was an amazing sight and there were a lot of nay sayers there. 
Seeing is believing!!

Mitch Daly
md31043 at msn.com





>From: Duane Ledford 
>Reply-To: Antique John Deere mailing 
>list
>To: Antique John Deere mailing 
>list
>Subject: Re: [AJD] Antique-johndeere Digest, Vol 46, Issue 5
>Date: Wed, 06 Feb 2008 18:47:11 -0500
>
>Have seen this demonstration done with a U/S D perched on four bottles. 
>Really
>does draw a crowd. Have mentioned this to the naysayers and their answer 
>was that
>sure, it is smooth at idle, but when it is under load is when the problems 
>begin.
>Kind of "Don't confuse me with the facts, my mind is already made up." That 
>being
>said, I don't think you could balance my great grandfather's U/S A on those 
>bottles
>when it was belted to his hammermill. I barely remember him chopping feed 
>for his
>chickens when I was there. The front on the tractor would bounce so hard 
>that the
>radiator cap would come off. Doesn't matter anyway. If I get a chance to 
>work my
>JD's, I'm going to do it, bearings be darned!
>
>On Wed Feb 6 17:01 , 'Frank' sent:
>
> >and some of you guys actually thought that because it was of two cylinder
> >design it would mess up bearings? HA!
> >
> >
> >Frank
> >gremaux at midrivers.com
> >----- Original Message -----
> >From: Oldmillmac at aol.com>
> >To: antique-johndeere at lists.antique-tractor.com>
> >Sent: Wednesday, February 06, 2008 3:16 PM
> >Subject: Re: [AJD] Antique-johndeere Digest, Vol 46, Issue 5
> >
> >
> >>
> >> _Click here: This Tractor Runs on Pepsi_
> >> (http://members.tripod.com/mellidee/Pepsi.html)
> >>
> >> Dave
> >>
> >>
> >>
> >>
> >> **************Biggest Grammy Award surprises of all time on AOL Music.
> >> (http://music.aol.com/grammys/pictures/never-won-a-grammy\?
>NCID=aolcmp003000000025
> >> 48)
> >>
> >> _______________________________________________
> >> Antique-johndeere mailing list
> >> http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
> >>
> >
> >_______________________________________________
> >Antique-johndeere mailing list
> >http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>
>
>
>_______________________________________________
>Antique-johndeere mailing list
>http://www.antique-tractor.com/mailman/listinfo/antique-johndeere


_______________________________________________
Antique-johndeere mailing list
http://www.antique-tractor.com/mailman/listinfo/antique-johndeere