[AT] [External] Re: Spark Plug Fouling Ferguson TO20

[Cecil Bearden]

I had a 79 Chevrolet wagon w/350 that i had overhauled.  It would foul 
the #8 plug every 500 miles or so.  I had to drive it to San Francisco.  
Stopped through Vegas to stay the night.  Right at rush hour, the plug 
fouled.  It sputtered through traffic to the motel for at leas t an 
hour.  I was ready to junk the blasted thing.  Found a Autozone, bought 
a set of plugs and changed #8 in the parking lot outside the hotel.  
Took off to San Francisco. Drove around San Francisco for 3 days.  
Started to leave the hotel and head home.  Just as I backed out of the 
space, #8 started missing.  I changed it in the parking garage in the 
shade.... Drove all the way to Gunnison CO before it fouled again.   I 
hit over 100 for a long time on US 50, loneliest road in America.  We 
drove from SF to Colorado Springs in a day.   When I got home I rebuilt 
the carburetor a week later.  It never fouled a plug again...  The plug 
was oil fouling and the carburetor float was too high.  It must have 
been washing the oil off the cylinder walls.  After that I put another 
40K miles on it and it got over 15mpg.  It only aver aged 12 going to 
SF, so t he carburetor was definitely flooding....
Cecil

On 6/24/2019 10:00 AM, Gunnells, Brad R wrote:
>
> My old ’46 Allis WC likes to foul #4. Of course it doesn’t get much 
> work so running it good and hard at operating temperature doesn’t 
> happen all that frequently. Since it only acts up once in a while I 
> keep an old pill bottle with Simple Green in it. I just leave the 
> fouled plug in there to soak until the one in it decides to foul. Blow 
> it out with the compressor and put it in. It’s saved me from digging 
> around and trying to find another plug in that “I’ll put it in this 
> bin so I know where it is dilemma” (since I then forget where that 
> magical bin is).
>
> Brad
>
> *From: *AT <at-bounces at lists.antique-tractor.com> on behalf of John 
> Hall <jtchall at nc.rr.com>
> *Reply-To: *Antique group <at at lists.antique-tractor.com>
> *Date: *Sunday, June 23, 2019 at 11:10 PM
> *To: *Antique group <at at lists.antique-tractor.com>
> *Subject: *[External] Re: [AT] Spark Plug Fouling Ferguson TO20
>
> Going by your annual useage, you get 3/4 of the year before you foul 
> the plug. I would just change it and be done with it, they are less 
> than $3 at NAPA.  FWIW, if you could run the splitter with something 
> else it may help--engines that are in poor shape run better under 
> heavier load, not piddling.
>
> John Hall
>
> On 6/23/2019 6:29 PM, Szakaluk wrote:
>
>     Request advice or suggestions on what I can do to reduce fouling
>     on #4 spark plug on my 1951 Ferguson TO-20, here or to me direct.
>
>     I've had it since 1990, only use it 8 or 10 hours a year. Field
>     mowing, snow removal, wood splitting (auger).
>
>     Using 10W30 oil, Champion D21 plugs, which I understand is a hot
>     plug for this application.
>
>     At first, I could go twenty or 25 hours between plug
>     fouling/cleaning.  Only #4 is a problem, others are fine. Using
>     very little oil.
>
>     Now I need to clean #4 every six or seven hours.
>
>     Appreciate your suggestions on how I can reduce this issue.  I
>     know someday the engine should be worked on, but with this limited
>     annual use I can't justify tearing it down.
>
>     Heavier oil?
>
>     Different plugs?  If so, on all cylinders, or just #4?
>
>     Oil additives?
>
>     Other thoughts?
>
>     Thanks in advance
>
>     Steve Zakaluk
>
>     szakaluk at aol.com <mailto:szakaluk at aol.com>
>
>     Falcon, CO
>
>
>
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