[Farmall] 1951 Cub won't start when very hot

[Mike Sloane]

The timing should be set at 16° - the second mark on the crankshaft 
pulley, not the TDC mark.

Mike

On 8/31/2010 9:02 PM, jimbon88 at aol.com wrote:
>
>
> Thanks everyone for your suggestions. For more background on my Cub,
> I have kept it the original 6 volt positive ground system.    It has
> worked fine for almost 60 years so I never converted it to 12 volts.
> I also use the pertronix coil specified for that system, although I
> haven't ohm'd it yet.    I'll try that and see if that gives me what
> pertronix says I should use.   After I installed the pertronix unit,
> I think i've gotten the brightest spark I've ever seen on that engine
> and it started right up on 3 cylinders as soon as I turned it over
> for the first time!    I checked the timing also with my 12v timing
> light.   It seemed to light up fine on 6 volts.  I wonder if 6 volts
> delays the light?    I timed it to the No.1 cylinder at  0 degrees.
> I hope that was the correct cylinder.     The manual was very clear
> about it.    It was a little off when I first checked it, but maybe
> it was that way all along?   In any case, I have been having this hot
> starting problem for a couple of years now whether I use a new! 6v
> coil or the pertronix one.    The valves are the one thing I haven't
> checked so I'll check that next.   The engine was rebuilt about 20+
> years ago so maybe they have gotten out of adjustment.    I have to
> go out of town for a few weeks soon so I probably won't get to that
> for a while.   If anyone thinks of anything else, please send it
> along. Thanks again! Jim
>
>
>
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