Join Date: Nov 2009
Location: georgia's toe-nails of the foot hills
Re: Ford LGT17H cutting out
If the brake also operates the drive clutch, thus unloading the engine from moving things, you may just be taking away enough load to allow the engine to keep going.
I'd check fuel supply, as that is a common problem. Depending on engine, fuel supply layout, etc, you could be having 'vapor lock'. Does this happen more on hot days?
Another possibility, less likely, would be the magneto or ignition system if you have a powered coil & distributor. I don't know the Ford models at all, nor engine installed.
Some who have fuel supply problems, pump, filter, plugged tank outlet, etc, find that applying some choke may get the engine to run better for a while. The choke may apply more vaccum and allow fuel to be pulled from lower levels in the float bowl.
If you try adding choke, and it helps, look for a fuel problem.
Most magneto failures will either be dead as a doornail all the time, or work intermittently with variation brought about by temperature changes. Check that your 'kill' wire is not bare or chafed, and that it is secure to the ignition switch. If you have a magneto be careful to keep 12v away from the kill wire or you will kill the magneto.
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