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No Fire

2

2greymules

New User
I have a 1950 H 6 volt positive ground with generator. It has been sitting in the barn for approx. 5 years. Have been trying to get it started but it has no fire. New battery, new coil, filed the points, cleaned everything but nothing yet. I am not sure it is getting the proper voltage to the coil. Is there a diagram or the sorts that outlines the proper voltage/amp readings from the battery all the way through the system, or any other suggestions that might solve the problem. Thanks
 
The process is not complex. Use a test light on the terminal on the side of the distributor. When cranking it should flash off and on. (a volt meter will do) a 12v test light on a 6v system will be dim, so look carefully. If it stays on, no flash, the points are not making a ground, or are not connected. If it stays off, the terminal might be shorted to ground (bad insulator stack through the case) or the connections to the movable contact of the points is touching the case, or the points are not opening. The with the distributor to coil (small) wire removed, and the ignition on there should be 6v on both sides of the coil small terminals. With a test light the side going to the dist will be a bit dimmer than the side going to the switch. Jim
 
Good summary Jim gave you, often a test lamp is all you need for very basic troubleshooting. Burned or pitted points are the most typical problem. I have linked a more detailed troubleshooting in case you need more, but the heart of it is what Jim already told you. I built a display exhibit all set up with a coil and a distributor and cap and plug etc with Troubleshooting Tips Im taking to the Florida Flywheelers, wish I could demonstrate it here.

John T
Ignition Troubleshooting
 
Thanks for the troubleshooting tips, great advice. After work I had time to grab a test light and follow the steps given. I have power on the coil and a flashing light on the distributer terminal when I crank her over. I am going to have to dig deeper now. What should I check next. Thank both of you for the great advise.
 
First thing I check when dealing with something that sat for a while is fuel. Drain tank of old fuel and check that all the lines and carb are clean. Then dump in fresh fuel. Had a W6 in the shed for around 7-10 years new bat, clean fuel: started after just a few cranks
 
Well if the coil is being switched (as you indicate) then the next step is to place the high voltage wire from the coil 1/4" from the engine block, and using an insulated piece of plastic, like a fast food knife handle or similar, open and close the points with the switch on. (don't leave the switch on for more than a minute, it can over heat things if not running) their should be a nice fat spark to the block. if not I would substitute a good coil and go from there. Jim
 
If it ran then it can only be three things ... AIR, FIRE or FUEL... If you have fire look to fuel after that look at air. On few rigs will you have an air problem, like the TD and WD series. Some fiber filters once wet by water can block flow.
Are the plugs wet after cranking? If the plugs have fuel on them then you have air and fuel and low or no spark...check the condenser it may have went bad.... They do that if you leave them set for long periods of time without starting.
Good Luck
Fat Dan
mvphoto12412.jpg
 
Thanks to all for the help. Final piece to the puzzle was a new set of points. Running fine now, actually drove it up the road and back a couple miles. Sure to be many more questions to follow. This was my grandfathers tractor and I fully intend to make it like new again. Thanks to all again.
 
If you are out and about and have that problem again; I have cleaned the points the best I could by taking any sharp tips off the contact area and squired the contact area, took an old silver dime and run it ruffly though the contact area set the points with a matchbook cover (0.020")... it got me home from Palmer, AK. to Anchorage, AK. about 50+ miles back then.
Good luck
Fat Dan
 
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