Friends,
Performing a mag check for flight today I discovered rough running on my Emag side. Upon further check of the gauges it showed a cool No 3 cylinder so off with the cowl. I pulled that cyl spark plug and sure enough the electrode was shorted out. It looked like a piece of carbon had welded the electrode tip gap shut. I cleaned it off, regapped, put it back on a vroom everything good now.
I had just installed new NGK BR8ES plugs not 3 hours runtime previous to this flight doing my airworthiness inspection. I aggressively lean engine on the ground and it has 330 hours since new over 5 years. I had been using the BR8EIX (tungsten) tip plug and change every 2 years-never had this happen to me with these plugs. Thought I would give the BR8ES plug a try and change them every year. Now I am wondering if these plugs are prone to this or what I can expect.
Comments, experiences, advice?
Jim
RV9a
Howell, Mi
Performing a mag check for flight today I discovered rough running on my Emag side. Upon further check of the gauges it showed a cool No 3 cylinder so off with the cowl. I pulled that cyl spark plug and sure enough the electrode was shorted out. It looked like a piece of carbon had welded the electrode tip gap shut. I cleaned it off, regapped, put it back on a vroom everything good now.
I had just installed new NGK BR8ES plugs not 3 hours runtime previous to this flight doing my airworthiness inspection. I aggressively lean engine on the ground and it has 330 hours since new over 5 years. I had been using the BR8EIX (tungsten) tip plug and change every 2 years-never had this happen to me with these plugs. Thought I would give the BR8ES plug a try and change them every year. Now I am wondering if these plugs are prone to this or what I can expect.
Comments, experiences, advice?
Jim
RV9a
Howell, Mi