Burning Dist. Cap

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   The coil contact on the inside of "G" distributor cap burns away very fast. Any ideas out there???????  Thanks

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ibleedorange Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 08 Feb 2010 Location: Harvard, IL Points: 173	Post Options Post Reply Quote ibleedorange Report Post Thanks(0) Quote Reply Topic: Burning Dist. Cap Posted: 21 May 2012 at 5:45pm
	The coil contact on the inside of "G" distributor cap burns away very fast. Any ideas out there??????? Thanks
	Tractors; If it runs, use it. Motorcycles: Ride em like today is your last day.

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dscott Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 05 May 2012 Points: 81	Post Options Post Reply Quote dscott Report Post Thanks(0) Quote Reply Posted: 21 May 2012 at 6:01pm
	To much voltage to the coil maybe? Rotor not seated properly. Is the tab on the rotor wore odd or anything like that????

DaveKamp Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Apr 2010 Location: LeClaire, Ia Points: 6066	Post Options Post Reply Quote DaveKamp Report Post Thanks(0) Quote Reply Posted: 21 May 2012 at 9:29pm
	First thing I'd look at, is whether there's a mismatch between the cap, rotor, or distributor body, which is causing the rotor to not make full contact to the center. Burning away occurs because there's an arc occurring where there should be conductive contact. The second issue I'd look for, is some sort of contamination between the contact surfaces...

Steve in NJ Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Andover, NJ Points: 11992	Post Options Post Reply Quote Steve in NJ Report Post Thanks(0) Quote Reply Posted: 22 May 2012 at 7:17am
	With the early Delco units, there is a couple rotors that will "fit", but the application is not correct. This could cause a misalignment with the center high tension button in the middle causing the condition you have. I've seen an incorrect rotor actually cut a groove in all the high tension contacts in the cap. The brass part of the rotor was also bent, but not broken. Its important to have the correct parts working with one another. Low voltage is another culprit of burnt up caps and ignition components. Inspect the wiring from the Ignition switch to coil and coil to Distributor. Doesn't matter if its 6 or 12V system. A misfiring set of points grounding to the breaker plate could be another cause, but you should hear the engine misfire while running or idling... HTH Steve@B&B