Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» My plane for the Travelling Engine III
by Jason_WI Today at 5:40 pm

» Torches and Pitchforks Hero.......
by batjac Today at 5:10 pm

» Bag of parts Thimble Drome
by Oldenginerod Today at 2:50 pm

» Mini Devil Ressurection
by getback Today at 2:44 pm

» Pee wee 020
by getback Today at 2:39 pm

» Old Babe Bee acquisition -need some help
by getback Today at 2:18 pm

» P-38 Lightning-Roddie style..
by rsv1cox Today at 12:54 pm

» Need help finding
by mandiares Today at 11:00 am

» Custom 1963 Cox PT-19 and HELLO!
by ikuraprime Today at 8:57 am

» Arden .099 and .19
by Ken Cook Today at 8:52 am

Cox Engine of The Month
February-2018
coxaddict's

"Another Twin Born 2-2-2018 weight 4 oz."



PAST WINNERS
Speed Contest 2018
CEF Traveling Engine

Win This Engine!
The Traveling Prop
Gallery


World of Aviation

TD 049 hard to flip start

Go down

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
avatar
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

View user profile

Back to top Go down

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)
avatar
TDbandit
Platinum Member
Platinum Member

Posts : 863
Join date : 2014-12-01
Age : 46
Location : Fort Valley Georgia

View user profile

Back to top Go down

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
avatar
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

View user profile

Back to top Go down

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.
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
avatar
RknRusty
Moderator

Posts : 10474
Join date : 2011-08-10
Age : 61
Location : South Carolina, USA

View user profile

Back to top Go down

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
avatar
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

View user profile

Back to top Go down

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
avatar
pkrankow
Diamond Member
Diamond Member

Posts : 2931
Join date : 2012-10-02
Location : Ohio

View user profile

Back to top Go down

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.
avatar
Cribbs74
Moderator

Trusted Seller
Posts : 9619
Join date : 2011-10-24
Age : 43
Location : Tuttle, OK

View user profile

Back to top Go down

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
avatar
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

View user profile

Back to top Go down

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)
(Bandit)
avatar
TDbandit
Platinum Member
Platinum Member

Posts : 863
Join date : 2014-12-01
Age : 46
Location : Fort Valley Georgia

View user profile

Back to top Go down

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
avatar
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

View user profile

Back to top Go down

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)

avatar
TDbandit
Platinum Member
Platinum Member

Posts : 863
Join date : 2014-12-01
Age : 46
Location : Fort Valley Georgia

View user profile

Back to top Go down

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
avatar
dontrinko
Moderate Poster
Moderate Poster

Posts : 29
Join date : 2015-05-15

View user profile

Back to top Go down

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