Re: Engine no longer missing

[bearbvd@domain.elided (Greg Hermann)]

I had an experience similar to this one years ago, with one of the old
(points triggered) Delta CD ignitions on a Spider Abnormale.

Was missing randomly, one could see blue fire everywhere on the high
tension harness in the dark, etc.

Turned out nothing at all was wrong with the electronics, there was a
vibration crack in the wire to the points where it connected to the dizzy.
More or less at random the (intermittent) broken wire would send trigger
signals to the ignition box, and the fun started !

Greg

At 11:24 PM 9/5/02, Joe Martin Cantrell wrote:
>I recently described a pernicious, randomly occurring  miss in my '72
>Spider's engine, and asked for guesses.  The only suggestion I got was to
>use Bosch Platinum Plus-4 plugs.  Didn't have them handy, but I'd just
>found a brand new set of Bosch Platinums in the VCR tape rack, where my
>daughter and her  house organizing friend had stored them, and they made
>the miss noticeably worse.
>
>Must not be the plugs.  I put the fairly new NGK's back in.
>
>I had an old Crane nee Allison ignition installed, but had heard that they
>are, "Either good or bad, they either work, or they don't."  Well, not
>exactly.  Yesterday, we replaced the optical sensor and black box with
>points and condenser, and the car's running better than it has in a long,
>long time.
>
>Learning point:  Electronic ignitions can go bad by increments, and like
>the frog in heating water, you don't know it's happening until you're cooked.
>
>Someone out there will want to know this.
>
>Cheers,
>Joe
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