Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


TD 049 hard to flip start Cox_ba12




TD 049 hard to flip start Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» my attempt at making an exhaust throttle for Cox .049
by roddie Today at 7:00 pm

» Anderson Baby Spitfire - looking for the aft tank and gasket
by dan vincent Today at 6:15 pm

» Another of C.T. engines cleaned ---- Cox Tee Dee .09 --- Just today (3/26/2024) more Cox parts
by sosam117 Today at 5:55 pm

» Cox powered boat litle shrimp hidroplane
by davidll1984 Today at 2:52 pm

» Introducing the new - "QZ" RR-1
by roddie Today at 1:08 pm

» STUKA bomb dimentions needed
by latole Today at 9:36 am

» Indexing COX cylinders
by davidll1984 Today at 7:56 am

» Introducing our Cox .049 TD Engines
by Yabby Today at 6:33 am

» 1/2a Skyray plans?
by 944_Jim Yesterday at 10:14 pm

» Postage stamp backplates
by JPvelo Yesterday at 8:52 pm

» Cosmic Winds, - Big Guy, Little Guys, Silver Guy and Wounded Guy.
by rsv1cox Yesterday at 5:18 pm

» My friend Ramón, his Cox .09 & Cox .010
by MauricioB Yesterday at 12:31 pm

Cox Engine of The Month
March-2024
balogh's

"COX Budapest" .049 engine



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


TD 049 hard to flip start Empty
Live on Patrol


TD 049 hard to flip start

Go down

TD 049 hard to flip start Empty TD 049 hard to flip start

Post  dontrinko 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
dontrinko
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  TDbandit 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)
TDbandit
TDbandit
Platinum Member
Platinum Member

Posts : 897
Join date : 2014-12-01
Age : 52
Location : Riverdale Georgia

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  dontrinko Fri May 29, 2015 2:39 pm

Thanks. I probably am over priming. It is hard to control with my squirt bottle. Don
dontrinko
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  RknRusty 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.
Rusty

_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!


My Hot Rock & Blues Playlist
RknRusty
RknRusty
Rest In Peace
Rest In Peace

Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  dontrinko 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
dontrinko
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  pkrankow 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
pkrankow
pkrankow
Top Poster
Top Poster

Posts : 3025
Join date : 2012-10-02
Location : Ohio

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  Cribbs74 Fri May 29, 2015 6:52 pm

Make sure the pressure nipple is not drilled and the backplate is tight.
Cribbs74
Cribbs74
Moderator

2022 Supporter

2023 Supporter

2024 Supporter

Posts : 11892
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  dontrinko 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
dontrinko
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  TDbandit 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)
(Bandit)
TDbandit
TDbandit
Platinum Member
Platinum Member

Posts : 897
Join date : 2014-12-01
Age : 52
Location : Riverdale Georgia

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  dontrinko 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
dontrinko
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  TDbandit 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)

TDbandit
TDbandit
Platinum Member
Platinum Member

Posts : 897
Join date : 2014-12-01
Age : 52
Location : Riverdale Georgia

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  dontrinko Sat May 30, 2015 11:46 am

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

Posts : 29
Join date : 2015-05-15

Back to top Go down

TD 049 hard to flip start Empty Re: TD 049 hard to flip start

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum