[AT] Never heard such a bang

[Dave Rotigel]

Ben, Are you holding your tongue correctly?
	Dave
PS, Is the rotor broken?
PPS, Is the timing correct?

On Mar 4, 2013, at 9:25 PM, Ben Wagner wrote:

> 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
>> 
>> 
>> 
>> _______________________________________________
>> Farmall mailing list
>> http://www.antique-tractor.com/mailman/listinfo/farmall
> 
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at