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[Spencer Yost]

I had a point spring break on the Massey Harris pacer. My symptom was so unusual I was able to actually know what it was almost right away. It would idle fine but at high-speeds it would have a staccato misfire. Sort of like a machine gun.  After thinking about it for a few minutes it was pretty clear  the points were not making and breaking properly at high speed so I looked there first.  It broke after the curve in the spring near the attachment point so it was always touching and always had tension.  I suppose it was always touching, but the resistance was so high it wouldn't charge the coil properly all the time at faster rpms.  That was my guess.

Everyone wonders why we love solid-state ignitions :-)

Spencer Yost

> On Jan 29, 2018, at 11:04 AM, Dan Glass <dglass at numail.org> wrote:
> 
> I had a problem similar to that but the point spring just got weak 
> instead of breaking.  The tractor would start and idle just fine but if 
> you tried to give it some gas it would die.  Put in new points and it 
> ran fine.
> 
> 
>> On 1/29/2018 9:59 AM, Easley, Greg A. wrote:
>> Electrics!  Always a nuisance.
>> 
>> I have a Farmall C that I use for overseeding pasture ground.  It's a retired pulling tractor - gone through end to end mechanically -
>> completely rewired, starter and generator rebuilt - everything that moves and a lot of stuff that doesn't has been repaired or
>> replaced as required, but now it just sits in the barn gathering dust except for a couple days every winter when I get it out to
>> top-dress the pastures.
>> 
>> Saturday when I went to start it the dang thing would crank over just fine but it wouldn't hit a lick.  Rather than drag a bunch of tools
>> out to the hay barn Pops helped me drag the tractor to my workshop.  The points were fouled the last time we needed to use it and
>> while Pops was making a run to the parts store for a new set I took the old ones out, cleaned the contacts, and had it running by the
>> time he got back with the new set.  I tossed the new points on the shelf and we went about our business.  Got the job done, parked
>> it in the hay barn, and forgot about it until this weekend.
>> 
>> That said, it made sense to look at the points first, and sure enough they were the problem.  But not the same problem as last time.
>> This time the spring was snapped in two.  First time I can recall ever seeing that happen.  I grabbed the new set off the shelf, put them
>> in, set the gap, and it was back to running like new.
>> 
>> Got the pastures seeded and put it away until next year.
>> 
>> Greg
>> 
> 
> 
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