[Farmall] Troubleshooting no start

birddog cvill at frontiernet.net
Mon Sep 25 19:34:12 PDT 2006


Dean,

For what it is worth:


Sounds as if you ran the course on this.  You mentioned plugs are sooty, 
but not wet with gas, so it is not flooded.  Probably not getting gas 
into cylinders from the carb.  After breakfast, you might take out a 
couple plugs and put in a small prime of fresh gas in those cylinders 
with a squirt can.  If it fires after the plugs are in and wires hooked, 
you will know you are on the right track weather it keeps running or not.

Charlie in WNY

P.S.  Double check to make sure wires are in proper order to the plugs.  
Mixed up wires have fooled a few people.  Good luck.

Dean Vinson wrote:
> Dadgummit.  Today was supposed to be the day I got the M Farmall warmed up
> and changed the oil, but it won't start.  Not so much as a pop, and by now
> I've run the battery down by tweaking various things and then trying to
> start it again.  
>
> Spark plugs were a bit sooty but I cleaned them all up and put them back in,
> then one at a time took # 3 and 4 back out to watch for a spark while
> cranking the engine.  Both looked okay, spark was there.  I didn't check # 1
> or 2 but don't see why they'd be any different.
>
> Fuel shutoff valve is on and fuel is getting to the carburetor.  Air cleaner
> is still a gunky mess but the tractor has always started pretty easily
> before (during the month or two I've had it).  I disconnected the air pipe
> from the carb and tried again, just to make sure plenty of air was getting
> there, but it didn't change anything, still not so much as a sputter.
>
> The tractor last ran a week or two ago.  Since then I've replaced all the
> wiring, so my initial thought was that I'd screwed something up.  But I
> checked and re-checked it, and it all looks okay.  Good spark at the
> generator A terminal when I polarized it.  Lights work and the ammeter shows
> discharge when I turn them on.  Plenty of cranking power (at least a couple
> of hours ago, before I ran it down). Contacts inside the distributor cap are
> somewhat pitted but everything is dry and looks okay, and it ran before, and
> the plugs are sparking.
>
> Any suggestions on how to troubleshoot this?  I'm at a loss as to what to
> even look for next.
>
> Thanks!
>
> Dean Vinson
> Dayton, Ohio
> www.vinsonfarm.net
>
>
>
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