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Quote:
Originally Posted by Gaz64
From Post 1:
Got home and started troubleshooting, discovered that the tick/tap stopped when plug wire 7 was pulled off the distributor. Tried switching plugs and wires no change.
An exhaust leak will likely stop when you pull the corresponding plug lead.
An exhaust leak can also sound like spark jumping.
I don't think it is spark from the plug you are seeing, but more than likely combustion still occurring as the exhaust valve opens, and hence "looks" like a spark through your "leak".
Fix the leak and you'll fix the "spark" issue.
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^^This^^
I had a similar issue that turned out to be an exhaust leak. It's amazing how much a void in a header gasket can sound like a mechanical tap.
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