Mailing List flyrotary@lancaironline.net Message #5217
From: Richard <unicorn@gdsys.net>
Subject: Re: [FlyRotary] Re: Series vs parralel rads
Date: Sat, 10 Jan 2004 11:19:50 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I used on my SOOB a taper to widen the end of the AL tubing by appr. .080" . I have not losst one drop of water in 2Years and 90hrs of flying. Had to open some of the hose connections during that time and everything is still just as dry as on day one.
 
----- Original Message -----
Sent: Saturday, January 10, 2004 10:59 AM
Subject: [FlyRotary] Re: Series vs parralel rads

The EZ-Beader (did a Google search  to get pricing) is quite expensive too at $25 per size. Of course I'm considering going from 5/8" to 3/4" tubing for inlets too, so would only need one of these tools.
(Using 3/4" tubing for both in- and outlets would make it possible to easily try series versus parallel config.)

I like the concept or the EZ-Beader! Looks like one could easily make one oneself:
Find a fitting with hex end and smooth outer surface (or weld a nut to a piece of tubing or rod); drill 4 holes (for the balls; tap inside thread in the fitting/rod/tube; grind (or turn) the tip of a bolt to conical shape.
Could probably even make a few punch marks to prevent balls from falling out.
Where does one find balls? :)

Finn

Russell Duffy wrote:
 
If you're using aluminum tubing as hose fittings, take a look at the attached picture.  This is a neat little gizmo from Earl's that forms a bead on the end of the pipe.  I just stumbled across these online yesterday, so I haven't ever tried one. 
 
Cheers,
Rusty (soon to be severed)
 
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