While I am new to this list serve (gaining info prior to my first purchase of a
spitfire project), I can speak to the subject of cable stretch. The answer is
yes.....actually two forms of stretch. First, there is constructional stretch,
which amounts to the outer strands seating themselves about the core when placed
into service or under load. This usually amounts to approximately 1/2 of 1%.
This is followed by elastic stretch, over time, of an additional 3/10 of a % or
so. In other words, total stretch would amount to a little over 1" per 10' of
cable. Not having crawled under one as of yet, I don't know the total length of
cable involved and/or the D/d ratios of any deflection sheave(s) that the cable
may pass over
Hope this is of some help.
Ed Hamilton
'?? Spite - not yet in my garage
Zempel David wrote:
> In finishing up the installation of my new brakes I attempted to adjust the
> parking brake. It's never been adjusted correctly and only appears to be an
> ornament attached to my TR4. It's impossible to adjust the cables that run to
> the drums in that they are screwed as far as they can go into the "T" thingy
> that connects them to the main parking brake cable. I imagine that once I add
> brake fluid and bleed the brakes that this might take some of the slack out of
> the cables. However, since the available adjustment (number of turns before
> bottoming out) was almost non-existant, I'm not convinced bleeding the brakes
> will solve my problem.
> Do these 3/16" cables stretch? (I think that's unlikely)
> Does anybody have a similiar experiance and solved it?
>
> thanks, Dave Zempel.
> '63 TR4 Surreytop
> Sunnyvale, CA.
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