[AT] Never heard such a bang

[Ben Wagner]

Here's today's update on the Super A: I have ruled out now:

~Valves. Adjustments are correct, compression is fairly equal (+/- 5) 
across all 4 cyls.
~Fuel.  All new fuel in the tractor.  All I get now is a bang a bit sooner!
~Spark. Jumping a 1/4 air gap with no problems at the plug.  New spark 
plugs.
~Carburetor.  Nothing changed: cleaned and checked for blockage.
~Air bath.  Changed oil and checked to verify screen is clean.

I'm not done yet, but I am getting desperate.  All of us easterners will 
be receiving a snowstorm on Wednesday: I need a snowplow tractor!!  I'll 
keep everyone posted.

Ben W.

www.oldpathsequipment.com
Mt. Solon, Virginia
Antique Machinery Repair and Restoration

On 3/2/2013 12:46 PM, Tony Flint - Flint Services wrote:
> I'd do a compression test on each cylinder just to verify that you don't
> have a valve that's burnt or broken.  Not likely, but it will at least rule
> out the valves as a possibility, even if they check out from an adjustment
> standpoint.
>
> I've also seen plugs that have a nice healthy spark *out* of the cylinder
> not work while *in* the cylinder under compression.  And it sounds like
> you've replaced everything but the plugs and wires, so do you have any
> spares you can swap around?
>
> And I'll assume the impulse coupling is working, and not that you're
> managing to just spin it fast enough?
>
> Lastly, could you also have bad fuel?
>
>
> Tony Flint
> Flint Services
> 417-782-4335
>
>
>
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