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My 69 427 just cut off the other night, like the switch was turned off. Later when trying to trouble shoot it with the engine cranking I was getting spark out of the coil wire, but when I stopped cranking the engine, with the ignition key in the run position for a minute the negative wire from the coil to the distributor burned up, and the coil was real hot. Can anyone start me in the correct direction to get it running again?
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Re: ignition problems
I've seen them burn up when you have a full 12 volts applied to the coil and the points stick. Did the non-resistive wire from coil to starter get connected to the wrong place on the starter? Did the resistive wire from the ignition to the coil get replaced with a regular wire?
I used to run a full 12 on the coil in the race car but it was tricky as you ate points rapidly and ran the risk of melting the stock wire if the points welded. The higher voltage ran the points hotter so they would arc across and weld occasionally.
Check the resistive wire, connections of the hot wire from the starter, and the point gap. If you set it too tight, the points don't open long enough to cool, especially at high rpm, and they will stick and eventually weld. they should be .017 to .019 inch. Other possibilities are the coil-to-points wire frayed and shorted to the distributor housing and the coil shorted (not too common but I have seen a couple, usually non-AC coils). -
Re: ignition problems
just a guess,the coil is shorted.Comment
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Re: Yep
Thats the only thing that would burn up the coil to distributor wire.Comment
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Re: Yep
great minds think alike even if both may turn out to be wrong.Comment
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Re: But
The important thing is that we think we are right.Comment
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Re: But
i was wrong only once,that time i thought i was wrong but i was right.Comment
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I think you got that quote from my wife. *NM*
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Re: I think you got that quote from my wife.
wayne for your sake i hope your wife does not read this board.Comment
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