Piper J3
Well Known Member
I notice a slight decline in coolant level in the overflow tank – maybe 1/16” to 1/8” change in level over 20 hours operation. I have removed cowling and looked for leak and found none. At end of flight coolant level is at fill line and when engine cools level is 1/16” to 1/8” lower.
I’d like to know if this is common and if other planes ae experiencing the same coolant loss.
I’d like to know if this is common and if other planes ae experiencing the same coolant loss.