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TD 049 hard to flip start

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TD 049 hard to flip start

Post  dontrinko on Fri May 29, 2015 1:53 pm

I have a TD 049 . It runs fine once started but it will not flip start. When I try to flip start it it pops 3 or 4 times and does not start. It keeps doing this but does not start.
It start immediately with my starter.
I am using 20% nitro and the prop is a 5", 5x3 I think. Any ideas? Thanks; Don
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Re: TD 049 hard to flip start

Post  TDbandit on Fri May 29, 2015 2:04 pm

Possibly too much compression try adding an extra head shim this is especially an issue with the Merlin aftermarket heads which which are notorious for too much compression you have to start with a min of 3 shims with those. Another issue can be too much of a prime (Flooded TD's are pretty easy to flood) or not enough all it takes is a couple of drops in the exhaust and putting your finger over the venturi and turning the prop until you see fuel reach the NV and it should fire right up. (Bandit)
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Re: TD 049 hard to flip start

Post  dontrinko on Fri May 29, 2015 2:39 pm

Thanks. I probably am over priming. It is hard to control with my squirt bottle. Don
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Re: TD 049 hard to flip start

Post  RknRusty on Fri May 29, 2015 2:42 pm

Fuel tank as close as possible, and level with the venturi so it's neither drawing uphill against gravity or flooding downhill?

It's easier for me to rotate the prop until it stops at compression, then slap it backwards. It helps to have the prop installed so the blades are horizontal or even 2:00/8:00 to get a good whap at it.
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Re: TD 049 hard to flip start

Post  dontrinko on Fri May 29, 2015 3:10 pm

I do have the prop at 2 o'clock. I have discovered that fuel level is important. If I run a tank to 1/5th tank and shut it off it will not restart but if I start with 1/2 tank and let it run it will run the fuel all the way out. Don
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Re: TD 049 hard to flip start

Post  pkrankow on Fri May 29, 2015 3:20 pm

Over priming is easy, but there is a trick to prime the correct amount. With the piston up and the exhaust closed, hang a drop on the port and side of the piston. When the piston comes down the proper amount of fuel will drop into the cylinder.

Phil
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Re: TD 049 hard to flip start

Post  Cribbs74 on Fri May 29, 2015 6:52 pm

Make sure the pressure nipple is not drilled and the backplate is tight.
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Re: TD 049 hard to flip start

Post  dontrinko on Sat May 30, 2015 7:43 am

The back is tight and the nipple has not been drilled out.
It starts almost instantly with the starter. I get the impression that if I could turn it 2 or 3 quick turns by hand it would start. I may buy the spring. It's not really a big deal but it would be nice if I could flip start it. Don
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Re: TD 049 hard to flip start

Post  TDbandit on Sat May 30, 2015 9:15 am

Is it possible you could post a vid of your starting problem, as rusty stated it could be how you're doing it (flipping it)
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Re: TD 049 hard to flip start

Post  dontrinko on Sat May 30, 2015 9:21 am

A video would be difficult but I think it may be something about the way I flip it because I have other engines that I can not flip start but start fine with the starter. I do use a stick. ( many childhood memories of cuts and blisters!)
I have other 049's but most of them have the spring and start fine.
I'll search utube and see if i can find a video. Thanks; Don
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Re: TD 049 hard to flip start

Post  TDbandit on Sat May 30, 2015 10:48 am

Flip starting (Hand starting) does take technique everyone has a different style that works for them but ALL of them have one thing in common when hand starting "You must have a proper prime" also make sure your NV is properly set at start up 2 to 3 1/2 turns open from fully closed this will start rich I know that's been said before but doesn't hurt to say again. I have a video of me starting my Medallion .049, it shows the prime and a one flip start. This is how I do it now, others use different techniques hope this helps.
(Bandit)

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Re: TD 049 hard to flip start

Post  dontrinko on Sat May 30, 2015 11:46 am

Thanks, I have not always started as rich. I will try that. Don
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