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Discussion Starter · #1 ·
Just got back from a spectacular sail... However... shortly after leaving the dock, my A-4 starts making a "pinging" noise. The power quickly faded, but I kept going for another mile, as the conditions were just too nice. Had a spectacular sail out to the Atlantic, turned around, then fired up the A-4 about a mile from the dock. The pinging was still there, and it starts smoking after about 15 minutes of running. I added some Marvel Mystery Oil, which didn't do a damn thing. Temp was normal (158F, approx.), oil pressure normal. We made it home, but something is definitely wrong here. I haven't had time to look into it, but was wondering if anyone cared to hazard a guess...

Thanks, everyone.
 

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Midwest Puddle Pirate
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Check your compression first. I would guess you have a piston problem. On second thought, if you have a bad piston you should have a lot of blow-by in the crankcase. Pull the oil cap off and watch for pulsing pressure while running.
 

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Discussion Starter · #3 ·
John,
Thanks for the response... I'll do as you recommend and see what's going on. If it's a pistol problem, I would imagine that it will require pulling the engine. Probably shouldn't get ahead of myself here...
Thanks again.
 

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'87 Pearson 27'
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John,
Thanks for the response... I'll do as you recommend and see what's going on. If it's a pistol problem, I would imagine that it will require pulling the engine. Probably shouldn't get ahead of myself here...
Thanks again.
If it is a pistol problem there could be real trouble. We don't want any excuses for gun control.:laugher
 

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Try replacing the points and condenser.
 
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