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Capacitor on the coil??? 700 1986

posted by  Bruce Johnson on  Wed Aug 21 05:15 CST 2002
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last visit: Wed Jun 20 12:25 CST 2012
[RELATED]

I have been helping a friend with his 740. We had no spark and eventually verified the hall effect sensor was the root cause. After replacing the distributor we still had no spark. While cranking, I could see the voltage transitions on the low voltage side of the coil now, but no HV coming out. We ordered a new coil, installed it and still no spark. I unplugged a rectangular plastic component from the coil's low voltage side and the engine started right up. Looking through the potting material I can see a capacitor marked 220 uf. Does anyone know if this is original equipment? Is it there for any reason other than RFI supression? I have an '87 and an '88 with the same engine but neither has this box attached to the coil mounting bracket.

Thanks in advance,
Bruce Johnson
--
'88 745, '87 744 in Virginia Beach






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