[AT] More engine issues

[Ben Wagner]

Hi everyone,

I just wanted to give a quick update on the '45 A.  I mentioned that I did
put in all new Champion D21 plugs, and the tractor ran much better.

About a week ago, I was at the Bridgewater Show, and I had filled both the
Super A and A with three gallons of fuel in each.  During the parade, the
'45 A was smoking but still running well. However, when I came home, the A
had used twice as much fuel as the Super A.  Obviously, I had too rich of a
mixture.

I adjusted the main jet, and the tractor evened off and runs even better
than it did.  Thanks to everyone who responded for their advice!

Ben Wagner

On Thu, Jul 14, 2011 at 10:40 AM, charlie hill
<charliehill at embarqmail.com>wrote:

> Ben that is more or less true.  That's why you have a choke.  You need a
> rich mixture for cold starts and then a leaner mixture to run.  The idea is
> to get the mix right for normal operation and use the choke to get it
> started and up to temp.
>
> Charlie
>
> -----Original Message-----
> From: Ben Wagner
> Sent: Thursday, July 14, 2011 10:00 AM
> To: Antique tractor email discussion group
> Subject: Re: [AT] More engine issues
>
> I'll let you know what happens; it'll be later tonight since I'm running to
> town this afternoon.  I was looking up my problem yesterday afternoon, and
> I
> pulled up this quote:
>
> "A motor that runs good cold [ without the choke ] is not going to run good
> hot. A cold motor needs lots of gas droplets in the combustion chamber so
> that the individual gas droplets burn somewhat consecutively and the motor
> runs somewhat smoothly. Once the motor gets hot the gas in the combustion
> chamber flashes to vapor and burns very well unless you have too much then
> it misfires."
>
> I haven't heard anything like this before mentioning the choke.  Is this a
> true statement?   I can't find much else backing it up.
>
> Ben Wagner
>
> On Thu, Jul 14, 2011 at 9:07 AM, Dan Glass <dglass at numail.org> wrote:
>
> > Good luck, let us know how it works out.  I will be interested to hear.
> >
> > On 7/14/2011 8:12 AM, Ben Wagner wrote:
> > > Thanks to everyone for their input.   I'll certainly try the D21 spark
> > > plugs, since I do have Autolite plugs in the tractor right now.  Like
> > > you
> > > said, it's cheap enough to try.
> > >
> > > I was leaning towards a fuel line/carb issue, except that I have just
> > > recently rebuilt the carb.  I may try a good cleaning today, with new
> > spark
> > > plugs, and see what happens.
> > >
> > > Ben Wagner
> > >
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