No Spark

[nosdan85]

53 plymouth cranbrook... 6v system. Started it and moved it around in the shop. I went to start it about an hour later and nothing. Checked fuel system and everything is good there. Pulled the plug and there is no spark at the plug.

I checked all wires and connections and all looks well. One thing I did notice is that the horn does not work now and did before. Tried the horn in both acc and start positions of the ignition switch and no horn. Notice in the wiring diagram that the horn relay acts as a daisy connection for the ignition wire which then goes to the input side of the coil. Could the horn relay be bad and cause this altough the connection is direct and does not pass throught the relay itself?

Talking with other older folks, they mentioned that the condensor in the rotor were known to go out...?

Any help, thoughts, or similar experiences? Thank you!!!

[Plymouthy Adams]

did you take a volt meter or test light to see if you indeed do have voltage at the coil?

[JIPJOBXX]

Check grounding strap on engine.

[Frank L. Hughes]

Had that problem on Chrysler Ute. It was rusty connection on horn relay. Frank

[nosdan85]

Thanks for the feeback. I'll try these suggestions out and follow up.

Regards,

Dan

[Tom Skinner]

Dear NosDan85,

If after checking those things you may want to static time it.

That will tell if your getting juice to the plugs at the specified/required time.

A good book for Trouble Shooting is: Automotive Trouble Shooting for WW2 Wheeled Vehicles by Robert V Notman. Contact him for a copy at: notman7@comcast.net.

Its worth the $30 or so to have around and wil leave no stone unturned.

Trouble shoots Electrical - Fuel - All things - Checking Coils, Condensers, Timing - Static and Dynamic etc. etc. Spiral Bound w S&H @ $35.

Saves alot of time going straight to a problem. It was designed to Field Repair WW2 Vehicles in emergency Situations and is Re-Edited by him with Modern Caveats and Tips - A MUST READ for most of us. I have started everything from old mopars (1940's) to old Ford Jeeps (1940's) with this book.

Tom Skinner

Huntersville, NC