Plug Check

[Knuckledragger 135]

About 12 hours SMOH now on the 582 GH.  I decided to check the plugs.  Clearly the engine is running rich.  Based on my observations and what I've read here and elsewhere, I moved the clips on the two needles from the middle to the top groove.

I did a WOT static and noted 5900 RPM, and 1000 EGT with the engine at 160 water.  Climb out saw 6300RPM @60MPH, 900-1000 FPM to pattern altitude.  Field is 100'MSL and DA was about 500' during the runup and trip around the patch.

Upon return I pulled one of the plugs and noted light brown color.  Tomorrow I will take it up and cruise a bit to observe temps and put a bit more time on then check the plugs again.  I look forward to your comments and input.

 

[nlappos 413]

I installed the hacman leaning system on my 582, and use it regularly so that my plugs always come out that light brown color you describe. I haven't seen any black gunk on my plugs since I started leaning the engine. I am sure that black stuff is no good for the engine.