iflyvfr
Pattern Altitude
The center electrode takes an oval shape as it wears.What is "footballing?"
The center electrode takes an oval shape as it wears.What is "footballing?"
The center electrode takes an oval shape as it wears.
Those go square when they erode. I had them in a couple of A-65s years ago.Doesn't happen here.
Never cleaned. The center electrode had a faulty weld.Were they cleaned with small sand or glass blasting media? Tempest says it is a NO-NO and will cause early failure. Lots of good info in the linked PDF.
EDIT: Tempest allows glass beads, per the aforementioned PDF, but require a minimum size to avoid erosion of the enamel that holds the center electrode.