[DeTomaso] Cable Shifter

[gow2 at rc-tech.net]

LOL, When I fail at this, that will be step 2!




> So I'm not the only one.  I let my son in law drive and when he got back
> we couldn't get reverse anymore and had to adjust again.   My view was the
> fore / aft adjustment is pretty robust,  but side to side is not so as the
> locking nut on the turnbuckle is the only thing keeping that in check.   I
> replaced the rubber bushing that holds the first long rod with a delrin
> bushing and liked the feel but still have trouble keeping it in
> adjustment.
>
> I believe the problem with cable is that your tension and compression play
> is a function of preload on the differential between the cable and the
> cable housing ( and how much the stretch or comments.press)  which makes
> it pretty hard to take all the play out,  especially under thermal
> cycling.
>
> On thought...  How about applying your talent to replacing the turnbuckle
> on the stock linkage with a finely adjustable left / right mechanism.
> I'd buy one. :-)
>
> David
>
> gow2 at rc-tech.net wrote:
>
>>In dissecting the Pantera shift assembly it really is a robust unit. I
>>have never been a fan of how it is adjusted. When I was adjusting mine, I
>>would get it perfect, tighten it up. After tightening it up it was again
>>off just enough to be cumbersome which is why so many people cut off
>> their
>>shift gates.
>>
>>I had the rod shift away from home a couple times and got in the habit of
>>keeping wrenches to re-tighten it on the road.
>>
>>I had considered making a better adjustable connection to replace the
>>turnbuckle but I am going down the cable shifter path right now.
>>
>>
>>
>>> I'm not sure why this is, but I suspect it just has to do with moving
>>> more
>>> "stuff". ( Cables in conduits, bellcranks, lever arms, etc ) With the
>>> traditional shift rod actuation, the fore-aft and rotational movement
>>> of
>>> the shifter results in a direct and immediate movement of the actuator
>>> at
>>> the selector box of the ZF.
>>>
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: gow2 <gow2 at rc-tech.net>
>>> To: Damaadams <damaadams at aol.com>
>>> Cc: kirby.schrader <kirby.schrader at gmail.com>; gow2 <gow2 at rc-tech.net>;
>>> detomaso <detomaso at realbig.com>
>>> Sent: Fri, Aug 31, 2012 3:28 pm
>>> Subject: Re: [DeTomaso] Cable Shifter
>>>
>>>
>>>
>>>
>>> Can you pinpoint why? IS it flex in the cable itself?
>>>
>>>> I'm with Kirby here. I have the cable shift in my Superformance GT40
>>>> as
>>>> well. It's an improved version engineered by Dennis Olthoff, but it's
>>>> still just a tad vague when compared to the more positive feel of the
>>>> shifting in my Mangusta. (Never thought I'd hear myself say that.)
>>>> ?
>>>> Daryl Adams
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: Kirby Schrader <kirby.schrader at gmail.com>
>>>> To: gow2 <gow2 at rc-tech.net>
>>>> Cc: detomaso <detomaso at realbig.com>
>>>> Sent: Thu, Aug 30, 2012 7:43 am
>>>> Subject: Re: [DeTomaso] Cable Shifter
>>>>
>>>>
>>>>
>>>>
>>>> Didn't we beat this horse up some time ago?  :-)
>>>>
>>>> I have a cable shifter in my GT40. It works OK, but I'd love to have
>>>> the
>>>> rod shifter that's in the Pantera in the GT40.
>>>>
>>>> Rod shifters are easier to adjust and must more positive when
>>>> shifting.
>>>> At least, that's true of my cars and, of course, that is my opinion.
>>>>
>>>> FWIW,
>>>> Kirby
>>>>
>>>> On Thu, Aug 30, 2012 at 7:38 AM, <gow2 at rc-tech.net> wrote:
>>>>
>>>>> I a playing with building a cable shifter. Anyone ever mess with it?
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