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Hopping Up a Stock Medallion .049 - Page 3 Babe_b10
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"Traded an electric charger for this "Complete" (original) Cox Thimble Drome Olympic .15 engine. Right corner is photo as received."



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Hopping Up a Stock Medallion .049 - Page 3 Empty Re: Hopping Up a Stock Medallion .049

Post  RknRusty on Sat Oct 26, 2019 6:59 pm

Two tips are most enlightening - the fine needle valve requirement and the quick action with the hemostat.
Hmmm, yes, I forgot to mention that NV detail. For the "through-the-venturi" valves, the old Cox product engines with the red postage stamp type backplates, and sometimes the white ones, have the 128 tpi needle valve. As Ken said, there are several ways to use them. We'll help you out with that whenever you get to it. I mayn be a loner on the plastic hemostats, I love 'em, but you don't have to. I can send you some, but at the moment I'm very slow at fulfilling promises... due to my lack of clearance by the doctors to drive my car as yet. When I can get out again, I may have an NV for you too.

Here is how Ken taught me to retrofit one for a Norvel, but the fitment concept works for any engine:
http://www.rcgroups.com/forums/showthread.php?t=1863251

As for the mesh containers, a fabric store might have something. Maybe your Babe has some fishnet stockings you can cut up, Lol.
Rusty

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Post  Dave P. on Sat Oct 26, 2019 8:51 pm

Hopping Up a Stock Medallion .049 - Page 3 Img_2061

A surprising source for mesh tubes is your local florist.  I scored these last time I bought flowers for the Missis.  The one on the right is a bladder all set up for 1 ounce.

I got two yards of black mesh that is enough for several lifetimes if anyone needs some.  I'd be happy to share.

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Post  fredvon4 on Sun Oct 27, 2019 9:41 am

also every auto parts store has fuel line, water hose, spark plug lead ====SLEEVES...in various sizes and colors...dirt cheap
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Post  aspeed on Sun Oct 27, 2019 9:51 am

I had a syringe of a suitable diameter with the tip removed and drilled out. The tabs on the back were trimmed off and it was screwed on to the profile fuselage. There are always different ways to skin a cat. Aluminum cigar tubes were popular for a while for a skinnier bladder. Best thing is to pump up a bladder and measure it and see what you can find for a housing. The mesh is a good variable option. Some F2D housings are the clear lexan? flourescent tube guards with a balsa end cap.
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