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Old 08-06-2009, 05:45 AM
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patrickt patrickt is offline
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by Argess View Post
Cranking the engine over I had a nice blue spark. It was hard to tell, but it seemed that every so often I'd miss a spark during cranking. This seems to match up when I used a timing light and every so often it misses a flash. Previously I blamed it on the light. Now I'm not so sure. ... Seems the problem gets worse when the engine is very hot and complimented by driving during very hot/humid weather.
Remember that occasionally a horizontally mounted oil-filled coil will have an internal intermittent fault that can be very hard to diagnose. A vertically mounted coil can also go bad as well -- before you moved on to any serious disassembly/exploration I might just go ahead and change out the coil if you have any suspicions at all about it.
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