[T3] seats & adjustment cams

[Jim Adney]

On 25 Oct 2014 at 10:09, Phil Hof wrote:

> I actually located a pair of NOS cams.  I have plans (still
> unfulfilled) to have them precision measured (perhaps with a CMM
> machine) so that we can build a solid model, which can then be shopped
> around to machine shops to have them made on a CNC machine, perhaps
> using a stronger material. 

I doubt that there is anything so precise about those cams that you'd 
need a CMM to make workable copies. I checked the parts list and 
there are only 2 versions: left and right, one of each per seat. Even 
if you got the cam levels wrong, they would still work perfectly as 
long as you got both versions slightly "wrong" in exactly the same 
way and replaced them in pairs.  

Frankly, I don't think I've ever seen those cams fail, other than 
have the roll pins fall out. The parts list shows those pins as 3 x 
18, which could probably be replaced by 1/8 x 3/4, unless you find 
the old pin still lying on the floor.

My guess is that those parts work just fine until they run into 
someone who tries to adjust the seat and doesn't realize that it 
works much better if they take their weight off the seat back first.


-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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