TT50 Pro starting problems

[SimonN]

Hi all

I went to the field after work today to have a quick fly of my Sceadu but had real problems getting the engine to start. It probably took a good minute or so of cranking over before it eventually fired into life, only to die again when I removed the glow start. I know the TT50 doesn't have a great reputation and I have an OS in my Knight, so the Sceadu is stuck with it! When I eventually got it going it ran fine, although it drank a tank a fuel pretty quickly! When I started it again after refueling I had the same problems. It was dripping fuel out of the exhaust when I was cranking it over, but that could just be because it was taking so long. I didn't have another glow plug with me to try but the panel showed that it was drawing plenty of current. Would a weak glow plug cause difficult starting or would I normally notice other problems? The plug has only been used for about an hours flying. Compression should be good because the engine is very new and has only had half a gallon of fuel through it. Can anybody else think of any other possible causes of my starting problems?

Thanks in advance !!

Simon

[ChrisB]

poor plug,or too rich and plug is snuffing out

[SimonN]

It's certainly rich, but the engine runs sweetly when it is running. I presume if it was rich enough to cause starting problems I would notice other running problems?

[MartinM]

You could tru turning the idle screw in a half a turn? I run two of these engines and once set they are Ok, I laso run 3 Hypers and I find setting is easy on these engines....

Martin

[colin n]

Pinch the fuel line while starting.

Turn it over with the starter to get fuel in, then pinch the line untill it fires up.

if u are happy with the way it runs when its started that is.

[SimonN]

Thanks to all who replied. I'll have a play tomorrow, starting with a new plug then trying Colin's trick. I'm happy with the way it runs so I'm a little loathed to play with the mixture too much.

Cheers guys
Simon