R/C Tech Forums - View Single Post - Strange black goop forming in my new Picco engine
Old 04-19-2020 | 12:05 AM
  #22  
Giant655
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From: Dayton, OH
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Originally Posted by fyrstormer
Normally I'd agree, but even if I tune the LSN lean enough that I can watch the cylinder-head temperature climb while idling, it still instantly stalls if I rev-up the engine too fast after letting it idle. A hot glowplug solves the problem, but the engine burned-out one hot glowplug within a week, so that's not a viable solution. It's not a major problem, and it might well be related to the unusually cold spring we've had this year. I won't know for sure until I get to drive the car on an 80-90°F day.
switch to a colder plug and lean it in. Having a hotter plug is lying to you and masking how rich it is. It can idle better being so rich BECAUSE the plug is too hot.
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