Lionheart
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Please link me to another thread if this has been raised.
Yesterday the J3 c65 did 2hours flying ((prob 2.5 engine running) with 6 flights. It was windy, started at 15 plus gusting 20 plus and went up. The engine is now 30hrs old from a complete rebuild, only the casings and rods were untouched. Day started around freezing, stayed below 10 centigrade all day.
Two differences to previous flights, first Engine temp took a long time to show, 100F and only went to 120F, previous normal 140F in flight.
On two occasions the Engine stopped on roll out, so all good on approach, flare etc.. both at idle so not when throttle pushed. Idle is set at 700. Any thoughts?
In the middle of the day Engine decided to be unwilling to start, reckon it had been standing 45-50mins, so hard to decide if hot start or cold start... )Hot starts we just go for it, ususally starts in 2 to 3 swings, cold we pull through to suckling sound then 4 more, go live and starts next swing.) On this occasion decided just to go for it but no suckling sound and carb dry. Ok pull it through, lots, still no sound, carb bone dry. So lifted the tail and pulled through lots, still carb bone dry, guess an air lock in the fuel line ? . Pulled it back 20 times, pulled it through, alway dry. Lifted tail, tapped float housing, pulled through lots more. Left it for 30 mins, tired arms... went back lots more pull through and eventually the suckling noise and a wet carb (air box pipe), next pull live and bingo. All good for the next hour flying, though one more Engine quit on roll out.
Interested to hear thoughts on why and ways to sort if needed...
Thanks Richard
Ps no primer, duel impluse slicks, stromberg carb, wood prob
Had a good read through the Delayed Starting thread, start Cold with throttle off, hot with throttle 1/2”, both usually work a treat.
Yesterday the J3 c65 did 2hours flying ((prob 2.5 engine running) with 6 flights. It was windy, started at 15 plus gusting 20 plus and went up. The engine is now 30hrs old from a complete rebuild, only the casings and rods were untouched. Day started around freezing, stayed below 10 centigrade all day.
Two differences to previous flights, first Engine temp took a long time to show, 100F and only went to 120F, previous normal 140F in flight.
On two occasions the Engine stopped on roll out, so all good on approach, flare etc.. both at idle so not when throttle pushed. Idle is set at 700. Any thoughts?
In the middle of the day Engine decided to be unwilling to start, reckon it had been standing 45-50mins, so hard to decide if hot start or cold start... )Hot starts we just go for it, ususally starts in 2 to 3 swings, cold we pull through to suckling sound then 4 more, go live and starts next swing.) On this occasion decided just to go for it but no suckling sound and carb dry. Ok pull it through, lots, still no sound, carb bone dry. So lifted the tail and pulled through lots, still carb bone dry, guess an air lock in the fuel line ? . Pulled it back 20 times, pulled it through, alway dry. Lifted tail, tapped float housing, pulled through lots more. Left it for 30 mins, tired arms... went back lots more pull through and eventually the suckling noise and a wet carb (air box pipe), next pull live and bingo. All good for the next hour flying, though one more Engine quit on roll out.
Interested to hear thoughts on why and ways to sort if needed...
Thanks Richard
Ps no primer, duel impluse slicks, stromberg carb, wood prob
Had a good read through the Delayed Starting thread, start Cold with throttle off, hot with throttle 1/2”, both usually work a treat.
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