My guess is some guys never look at SB’s. Others think it’s too much trouble and would rather wait until something shows up as a symptom. The reason...
Long shot, but you could have an exhaust valve hanging intermittently. Has the Lycoming valve guide SB been done ever? I think it’s recommended every...
Flying since 1968. CFI-A, CFI-I SEL. Have owned C172TD, T-Craft, Fleet 16B, Great Lakes, Comanche 250, J-3. Have flown extensively PA18A, CC 180, PT17 Stearman, WACO UBA. also instructed in C 152
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