[DeTomaso] clutch effort - hydrovac

[Thomas Tornblom]

Tomas Gunnarsson skrev:
> Are those units designed to displace the amount of fluid that one has to move in one stroke in a clutch application?

No idea. The master cylinder of these cars was visually the same as the 
one without this booster. I guess they could have different bores.

I had a 1968 amazon with one of these, and I never liked it. The pedal 
felt as if there was a restriction somewhere, making quick pedal 
operation impossible. I replaced it and the master cylinder with a 
booster and cylinder from a chevy.

> 
> Tomas

Thomas

> 
> ----- Original Message ----- 
> From: "Thomas Tornblom" <Thomas.Tornblom at hax.se>
> To: "Barry Seib" <oldwheel at mts.net>
> Cc: "DetomasoList" <detomaso at realbig.com>
> Sent: Friday, January 01, 2010 6:57 PM
> Subject: Re: [DeTomaso] clutch effort - hydrovac
> 
> 
>> Some mid 60:s, pre B20, Volvo Amazon and P1800 had these. Likely donors 
>> would be 1967-1968,
>>
>> They appear to be Girling Mk2B units, also available on some British 
>> cars of similar age.
>>
>> Thomas
>>
>>
>> Barry Seib skrev:
>>> Slow on this list lately anyway ...
>>>
>>> Been nosing around on the net and dreaming about ways to reduce the clutch
>>> effort in a Pantera. I know Ron has applied the Mitsubishi 3000GT unit
>>> successfully, but it involves some heavy mods on the pedal assembly. I
>>> remember my old Studebaker Hawk used a remote vaccuum booster that was not
>>> linked to the pedal mechanically, but used a remote vacuum diaphragm unit to
>>> multiply pressure as fed to it from the standard master cyl. I gather it was
>>> also used in some trucks and 50s chevys. I think the term is hydrovac and
>>> I'm wondering if any intrepid Pantera owner has used a setup like this to
>>> ease the clutch? It would only require mounting and hose connections and
>>> wouldn't need to be linked to the clutch pedal.
>>>
>>> http://vehiclesofvictory.com/wp-content/uploads/2009/04/chevy-hydrovac1.jpg
>>>
>>>
>>> Happy New Year to you all from Canada ! ( -31C here tonight)
>>>
>>> Barry
>>>
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>>
>> -- 
>> Real life:   Thomas Törnblom             Email:  Thomas.Tornblom at Hax.SE
>> Snail mail:  Banvallsvägen 14            Phone:    +46 18 444 33 21
>>              S - 754 40 Uppsala, Sweden  Cellular: +46 70 261 1372
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-- 
Real life:   Thomas Törnblom             Email:  Thomas.Tornblom at Hax.SE
Snail mail:  Banvallsvägen 14            Phone:    +46 18 444 33 21
              S - 754 40 Uppsala, Sweden  Cellular: +46 70 261 1372