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

Logged in members see NO ADVERTISEMENTS!


Olympic/Sportsman Venturi Nut Cox_ba12




Olympic/Sportsman Venturi Nut 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 balogh Today at 12:07 am

» Testers Sprite engine swap
by Greenman38633 Yesterday at 9:32 pm

» Elfin 0.5cc (Arnie Hende replica)
by dan vincent Yesterday at 9:18 pm

» Introducing our Cox .049 TD Engines
by layback209 Yesterday at 9:10 pm

» Anderson Baby Spitfire - looking for the aft tank and gasket
by Boats13 Yesterday at 8:18 pm

» Fuel residue stain clening help
by akjgardner Yesterday at 7:53 pm

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

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

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

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

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

» 1/2a Skyray plans?
by 944_Jim Wed Mar 27, 2024 10:14 pm

Cox Engine of The Month
March-2024
balogh's

"COX Budapest" .049 engine



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


Olympic/Sportsman Venturi Nut Empty
Live on Patrol


Olympic/Sportsman Venturi Nut

Go down

LOL Olympic/Sportsman Venturi Nut

Post  tuckered Wed Feb 03, 2016 4:29 am

Has anyone ever successfully removed/replaced the wire mesh screen on the .15 Olympic/Sportsman venturi nuts? I ask because I'm considering anodising an otherwise perfect uncoloured Sportsman item for an Olympic restoration. I'd need to remove the screen before anodising the nut, then replace it - not an easy task without problems by the looks of it. The end where the screen sits looks like it's folded in and I assume the screen was placed originally from the other (female threaded) end. Due to the taper on this part, and assuming I'm correct, then the mesh would need to be folded (but not creased) a bit to move it in or out, then hopefully tapped back into shape to retain. I think this sounds a pretty tricky proposition but all advice appreciated.
tuckered
tuckered
Moderate Poster
Moderate Poster

Posts : 17
Join date : 2015-10-31
Age : 70
Location : Berkshire, UK

Back to top Go down

LOL Re: Olympic/Sportsman Venturi Nut

Post  ian1954 Wed Feb 03, 2016 7:47 am

I took the rubber(eraser) out of the end of a propelling pencil a skewered it with a piece of piano wire. The tip off the rubber had worn into a dome shape and I used this from inside to gently press out the mesh.

Refitting the mesh was more difficult. In the end I gradually eased it back using my fingers around the edges starting at one place and working my way around. It looked a little out of shape but I reinserted the rubber inside as a support and remolded the screen to shape.
ian1954
ian1954
Diamond Member
Diamond Member

Posts : 2688
Join date : 2011-11-16
Age : 69
Location : England

Back to top Go down

LOL Re: Olympic/Sportsman Venturi Nut

Post  tuckered Wed Feb 03, 2016 8:19 am

Hmm - interesting,  so you did it from the outside rather than the inside. Not what I'd have guessed - if only that doing it that way in production would presumably result in visible scratching of the red anodised finish by the relatively hard edge of the wire screen. Did the finished job look like the screen had been replaced? Thanks for replying.
tuckered
tuckered
Moderate Poster
Moderate Poster

Posts : 17
Join date : 2015-10-31
Age : 70
Location : Berkshire, UK

Back to top Go down

LOL Re: Olympic/Sportsman Venturi Nut

Post  ian1954 Wed Feb 03, 2016 9:14 am

tuckered wrote:Hmm - interesting,  so you did it from the outside rather than the inside. Not what I'd have guessed - if only that doing it that way in production would presumably result in visible scratching of the red anodised finish by the relatively hard edge of the wire screen. Did the finished job look like the screen had been replaced? Thanks for replying.

No the adonised aluminium is quite tough. However, I adonised all the red parts together. Trying to match one part to another is quite difficult. I was restoring all Olympic parts and redoing the adonising. Not far off but doesn't quite match a totally original. Red is a difficult colour to match.
ian1954
ian1954
Diamond Member
Diamond Member

Posts : 2688
Join date : 2011-11-16
Age : 69
Location : England

Back to top Go down

LOL Re: Olympic/Sportsman Venturi Nut

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