<VV> Clutch Cable issues
kevin nash
wrokit at hotmail.com
Sun Apr 14 11:22:08 EDT 2013
Mark, Joel, and everyone else that has been following this- I just cut off the good end of my broken, N.O.S. cable
and counted the strands- it is 7X19 1/8 diameter cable, and the desirable minimum recommended diameter for that is 3 inches.The "critical minimum" is 2.25 diameter, and for aircraft control systems, the diameter would have to be 4.375"
I measured my pulley (1/4 turn pulley at the first bend leaving the clutch pedal)- it has a 1.25" radius or 2.5" diameter.
In other words, the stock set-up is pushing the lower limit of acceptability. The 7x19 stranding, however, is much, much finer than the repro cable that I broke many years ago. Here's a link to the table: http://www.loosco.com/index.php?page=pulley-diameter .For a "permanent" solution, either larger pulleys or finer strands or some combination of slightly larger pulley, and slightly finerstranding is needed. I'm curious though, are the late pulleys larger than the early's ?Kevin Nash
> Message: 4
> Date: Sat, 13 Apr 2013 20:39:03 -0700
> From: Mark Durham <62vair at gmail.com>
> Subject: Re: <VV> Broken Clutch cable history
> To: Joel McGregor <joel at joelsplace.com>, "virtualvairs at corvair.org"
> <virtualvairs at corvair.org>
> Message-ID: <-1867395292539953892 at unknownmsgid>
> Content-Type: text/plain; charset=ISO-8859-1
>
> guys, there is a good solution to this. Aircraft quality cable and
> swedge ends will fix this problem. use your chart and Google aircraft
> spruce and special co and order the proper cable and ends you need.
> Just about any A & P aircraft mechanic can swedge the ends at your
> local airport for you, too. Mark Durham
>
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