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post #1 of Old 11-14-2011 Thread Starter
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Mystery Shutdown (at just the wrong time!)

Hi All,
Had a nerve wracking shutdown of my A4 today while sailing in gusty conditions. Symptoms were a "Clunk" and then a stuttering shutdown. Upon restart, I noticed my tach stopped reading. I've converted to an electronic ignition years ago. The engine ran a minute or two then shut down again. Oil pressure fine and so was the temp, alternator charging normally. I was motor sailing in boisterous conditions and a little on my ear. I would have thought it was sediment in the tank stirred up, but I do have a fuel water separator and I add gas stabilizer with every fill. This happened more than half a dozen times and it's a problem today because I have to exit a particularly long and tortured channel in the next few days.
The engine did finally stay running, but I kept the throttle low and the boat flat-still no tach. Is this suggestive of a coil breaking down? Prop seems clear, but I'm not going overboard to check-its November in New England after water int the bilge.
Any suggestions on how to test the coil greatly appreciated.
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