In Reply to: cold weather posted by David on December 29, 2018 at 13:05:55:
All IC engines are more difficult to start in cold ambient. Vintage Ford tractor engines are no exceptions.
That said, vintage Ford tractor engines, 6V or 12V, will start reliably in temperatures below 0 degrees F IF things are right.
Things right include ignition, compression, fuel/carburetion, starting system, AND technique.
Many folks do not use correct technique. Vintage gasoline engines are easily flooded by improper technique, especially if equipped with manual choke. Once flooded with modern gasoline it is much more difficult to start such engines in cold ambient unless you remove and sandblast or replace the plugs. Be CERTAIN that summer formula gasoline is in the tank AND carburetor when attempting to start in cold ambient. Hold the clutch down and choke sparingly. If it does not fire off quickly, a brief spurt of starting fluid in the AC inlet will likely help if not already flooded. Keep your hand on the choke knob when cranking as you will need to "feather" the choke after starting to prevent lean stall. Do not release the clutch until the engine has stabilized and keep your hand on the choke know when you do.
Of course, cold starting is much more difficult if your engine is badly worn and compression is marginal.