[Farmall] 1949 H Running Rough

[Robert L. Holtzer]

On 8/27/2011 7:13 AM, Tim Savelle wrote:
> My 1949 H is idling and running a bit rough.  I suspect it is mostly
> from ignorantly burning gas with ethanol.  I starts right up, and
> doesn't choke down.  But the idle is not smooth, and at high RPM's
> doesn't improve much.  I've run a tank of gas through it with Sea Foam
> (2 ozs/gallon of gas) thinking it might help clean it out, and perhaps
> it has to some degree, but the problem isn't solved.  I'm thinking a
> carburetor kit might be necessary.  Is this a logical next step and
> advisable? Thanks, Tim
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Before launching into the carb I'd suggest running the engine on three 
cylinders, i.e., disconnecting one spark plug wire at a time -- to see 
if the roughness is due to one cylinder.  As an alternative, use a long 
well-insulated screwdriver to short out one plug at a time while running 
(assuming the spark plug connection is not covered by an insulated plug 
wire terminus).  If you find a single cylinder problem, it would 
unlikely be related to the fuel system.

Bob Holtzer