News:


  • April 26, 2024, 10:07:54 PM

Login with username, password and session length

« previous next »
Pages: [1]   Go Down

Author Topic: edle valve spring  (Read 1503 times)

Offline Bootlegger

  • 22 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2710
edle valve spring
« on: September 25, 2016, 07:26:52 AM »

   Guy's I need a needle valve spring for a Cox Medallion .049 engine. Where can I get one?   Thanks
Logged
8th Air Force Veteran
Gil Causey
AMA# 6964

Offline Tim Wescott

  • 2016 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 12808
Re: edle valve spring
« Reply #1 on: September 25, 2016, 10:43:32 AM »
A length of silicone fuel tubing works well for me.  Pick a diameter (medium) and length (around 1/2 inch) so that it's compressed a bit at the right setting, but not riding over the shoulder on the needle valve.

Or, Cox International.

Edit: I only just now noticed that yours is a Medallion, not a reedie.  The fuel tube should still work but I don't have personal experience with that one.  If not, Cox International has needle stuff for Medallions, too.
« Last Edit: September 25, 2016, 11:48:59 AM by Tim Wescott »
Logged
AMA 64232

The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.

Offline Fredvon4

  • 23 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2099
  • Central Texas
Re: edle valve spring
« Reply #2 on: September 25, 2016, 11:12:30 AM »
What Tim said I my method also... if you find the Needle step is to small a diameter and is sliding into the fuel line, use a small #2 washer it fits over the threads but wont pass the first step before the knob

Trick is finding the running needle setting and then cut the fuel line just barely a tad longer but not too much

seals out air, stops vibration changes of the needle
Logged
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline david beazley

  • 2017
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 441
Re: edle valve spring
« Reply #3 on: September 25, 2016, 05:28:00 PM »
How about a spring out of a ball point pen?
Logged
It's only paranoia if they aren't really after you.
Analog man trapped in a digital world
AMA # 2817

Offline Tim Wescott

  • 2016 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 12808
Re: edle valve spring
« Reply #4 on: September 25, 2016, 06:02:53 PM »
Quote from: david beazley on September 25, 2016, 05:28:00 PM
How about a spring out of a ball point pen?

They're too wimpy.  If anything, fuel tubing works better than stock if you're willing to fuss with it a bit.
Logged
AMA 64232

The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.

Advertise Here
Pages: [1]   Go Up
« previous next »
Tags:
 


Advertise Here