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

Logged in members see NO ADVERTISEMENTS!


OS .40fp spraybar Cox_ba12




OS .40fp spraybar Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Cox powered boat litle shrimp hidroplane
by getback Today at 6:54 am

» Homemade tool to check/set .049/.051 Cox cylinder deck-height
by getback Today at 6:44 am

» Testors Silver Wind...........
by rdw777 Today at 6:37 am

» Tee Dee .010 Needle valve setting
by getback Today at 6:28 am

» Flow control
by GallopingGhostler Today at 6:25 am

» Found a posible rc plane for cox powered convertion
by getback Today at 6:07 am

» Automobiles you don't see everyday...
by OVERLORD Today at 4:35 am

» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (April 2024)
by akjgardner Today at 4:06 am

» What Medallion is this?
by GallopingGhostler Yesterday at 9:19 pm

» Introducing our Cox .049 TD Engines
by Cox International Yesterday at 4:32 pm

» Philly Fliers 1/2A day
by Ken Cook Yesterday at 3:11 pm

» Five Cox .049 carburetors for sale
by sosam117 Yesterday at 1:51 pm

Cox Engine of The Month
March-2024
balogh's

"COX Budapest" .049 engine



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


OS .40fp spraybar Empty
Live on Patrol


OS .40fp spraybar

Go down

OS .40fp spraybar Empty OS .40fp spraybar

Post  RknRusty Sat Jun 07, 2014 8:22 pm

Anyone know for sure if the .25fp through the .40fp all take the same NVand spraybar? Not necessarily the venturi, just wondering about the NVA. I have a bent spraybar on my .40 which I'll be needing for the Oriental.
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

OS .40fp spraybar Empty Re: OS .40fp spraybar

Post  Ken Cook Sat Jun 07, 2014 8:39 pm

Yes, it fits for sure. The FP.20-.46 is the same needle valve assembly and venturi. The venturi though is smaller on the smaller mills. All will fit though. Pay careful attention to the rubber o-ring under the venturi, it might be compressed. If the spraybar slips through will little to no pressure, replace the o-ring. Ken
Ken Cook
Ken Cook
Top Poster
Top Poster

Posts : 5433
Join date : 2012-03-27
Location : pennsylvania

Back to top Go down

OS .40fp spraybar Empty Re: OS .40fp spraybar

Post  OVERLORD Sun Jun 08, 2014 3:52 am

This is the one I have, with label and OS serial nr

OS .40fp spraybar Imgp9317

Lieven
OVERLORD
OVERLORD
Diamond Member
Diamond Member

Posts : 1783
Join date : 2013-03-19
Age : 57
Location : Normandy, France

Back to top Go down

OS .40fp spraybar Empty Re: OS .40fp spraybar

Post  Ken Cook Sun Jun 08, 2014 6:07 am

If you have the needle valve out of the plane and in front of you, I highly recommend removing the spring from the needle itself. Cut or grind the spring and make it as short as possible. The knob can work like a pendulum hanging out there in the air which will make your run all over the map and it can wear out the threads in the needle valve itself due to vibrations which can destroy the plating on the interior of the needle and or spraybar. The knob or the spring will come loose and it will do this for you typically and most inconveniently on the day your raising your hand for your official flight. The spring where it contacts the needle needs to be scarified and soldered. The aluminum however needs to be JB welded to the spring. Roughing up the spring and a thorough cleaning of lacquer thinner or acetone works. Place the JB weld and heat with a heat gun and let it run into the coils of the spring. I like to let it form a filet to the backside of the knob. I have some good information for you in regards to tank size, prop size, etc. All of what I suggest could be used as a guideline to know what to shoot for. The FP can be a difficult one in regards of engine run. While the engine might be working currently for you as a side winder, once you cowl it in and start dragging a much larger plane around the table quickly turn and things may not work so well. Let me know and I can assist you in the learning curve. Ken

Ken Cook
Ken Cook
Top Poster
Top Poster

Posts : 5433
Join date : 2012-03-27
Location : pennsylvania

Back to top Go down

OS .40fp spraybar Empty Re: OS .40fp spraybar

Post  RknRusty Sun Jun 08, 2014 7:28 am

Thanks, Ken. The .35 is what I've been using primarily on the old 38 oz. Skyray and It's so consistent I haven't had to touch the needle since the weather was cold. I've read on SH that the .40 isn't nearly the sweetheart the .35 is either. I flew it a few times one weekend and it seemed fine as a sidewinder, and was then shelved as it's plane was a hunk of junk. So far I've had some limited experience with inverted engines, and none of it was encouraging. So I'll probably be tapping you for advice when the time comes. Thanks.
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

OS .40fp spraybar Empty Re: OS .40fp spraybar

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