Robert uren

If you have a 6 volt jeep with just the one battery box then a proper 12 volt conversion needs a proper 12 volt pre engaged starter not a re badged 6 volt original style starter, this will be to harsh on the ring gear despite what the suppliers may tell you, pre enguaged 12 volt starter is what you want, a simple 12 volt alternator can be easily mounted on the jeep and pulley size changed to suit the belt thickness, split pulleys can be spaced apart with washers so the thick one piece belts can be used , change the bulbs and disconnect the fuel gauge sender at the tank end (they never work anyway) just look in the top of the tank to see what fuel you have

If anyone can help me with the denso starter model that fits a Hotchkiss or willys mb , I dont mind some slight modification but looking for 12 volt pre engaged direct drive starters to fit these 12 volt converted jeeps, the Hotchkiss pre engaged 24 volt starter is a superb unit but the rewinding of it from 24volts down to 12 volts is a long wait and is expensive , a Hotchkiss with 24 volts or m38 24 volts could be converted with just the sparking system dropped to 12 volts , that way everything else stays at 24 volts but the current going to the newly fitted externally mounted 12 volt ignition coil runs through a voltage dropper and is reduced from 24 to 12 volts, I also fit a china ballast resistor after the voltage dropper to get the current down 3 more volts, a bit more because on any vehicle when a dynamo or alternator is running the combined voltage is even higher than the 24 volts so without the china block ballast resistor fitted a running engine can still push a little to much volts through the dropper

I would fit a borrowed repro solex carb , If the jeep runs perfectly with a new or tested solex you know its your carb that's still at fault, I had a jeep once that cut out on acceleration, turned out to be a seized advance retard weights so there could be a different thing causing the symptoms, difficult to start when hot can mean very low compression or petrol leaking through the carb when engine stopped, too high a pressure in the lift pump squeezing fuel through the carb, do you have a repro lift pump fitted?