c85

  1. T

    IS OIL ANALYSIS A GOOD DETECTIVE?

    Recently my Ercoupe's C-85 lost oil prime which resulted in no oil pressure on start-up. Unfortunately, it ran for around 15-minutes - including a run-up, before being noticed. Long story, it was a "friend" warming up plane for oil change and did not notice. I know, I know, the engine is...
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