Hey All -

About 3 weeks ago (OMG I haven't flown in 3 weeks) I was down at the field and about 6 minutes into flight with my avistar 40 size the engine would cut off in midair. I got about 2 more flights and between 6-10 minutes the plane would just cut off. One of the members checked all of my needles and we readjusted but nothing seemed to help. I did notice bubbles in the fuel lines. I decided to changed all of my fuel lines which I did. In between all this my OS46fx came in so I through that in. I fueled it up and the motor started but after about 1 minute in shut off and then when I tried to restart it wouldn't turn over. Now after reading countless posts the next thing to do would be to check the clunk or pad the fuel tank. What do you all think ? Below is what I did.

Replaced Glow Plug
Replaced Fuel Lines
Replaced Engine
Glow starter new battery

Thanks

Mark

If the new 46FX is doing the same thing, I guess when you said,
"wouldn't turn over" you meant wouldn't start?? Best bet is to pull
the tank.. Sounds like your problem may be there.. check the
tubing also maybe one got bent. I have yet to add foam/pad any
of my tanks and have had no problems to date.. But club
members said It's a good idea to do so.. Guess I'll add foam to
my next build.. Good luck!

Guy at my club pointed out something I'd done wrong on my tank... always make sure the vent tube into your tank is pointed to the top of your tank, that way you won't get a false reading on your fuel. Sounds like as you were flying, the engine was starving for fuel, like something wasn't right with your tank tube installations. I'd doublecheck that.

Thanks All -

I will pull out the fuel tank next. Its such a pain to do that. But I wanna fly.
Will let you guys know what happen.

Thanks Again

Mark