[AT] Spark Plug Fouling Ferguson TO20

[Mike M]

Wet or dry fouling, Steve?

Mike M

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
> Falcon, CO
>
>
>
> _______________________________________________
> AT mailing list
> AT at lists.antique-tractor.com
> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com



---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.antique-tractor.com/pipermail/at-antique-tractor.com/attachments/20190623/0d454824/attachment.htm>