[DeTomaso] master brake cylinder

[boyd casey]

The cost of a replacement master cylinder is low enough that it dosen't
warrant attempting a rebuild. I believe NAPA used to sell a rebuild kit. I
personally chose to use a master cylinder manufactured by CNC.:
This is a link to their web sight :http://www.cncbrakes.com/
After doing research on the available products I chose CNC for the following
reasons.
1.The replacement parts available from the vendors appear to no longer be
made in Italy but instead are made in China and the fit finish and
tolerances are not up to "Par"
2. CNC offers a variety of products that offers a variety of dimensions and
features that provide the ability to "fit the master cylinder to your
brakes. (These features include stainless steel lined cylinders" The
features and styles are to numerous to list here. I purchased a dual master
cylinder ( one for the front brakes and one for the rear) This set up
included a balance bar to adjust brake bias between front and rear and it is
adjustable from inside the car.
3. CNC offers a variety of cylinder diameters and you can get a set up
designed for you brakes.
Just my 2cents.
Boyd

On Sat, Mar 26, 2011 at 3:46 AM, <JDeRyke at aol.com> wrote:

> In a message dated 3/25/11 10:16:04 PM, cwhamm at frontier.com writes:
>
> > Is there a rebuild kit for the master brake cylinder on a stock 74
> > pantera
> >
> No- and that might be a good thing. The master cylinder is made of soft
> cast iron, so it often pits from owners not changing brake fluid often
> enough
> to keep from rusting from accumulated moisture in the fluid. The rust pits
> tear the seals. Adding new seals if you could find them only would tear the
> new seals just like the old ones. Honing the cylinder enough to eliminate
> the
> pits oversizes the bore so an OEM 'kit' wouldn't seal. The game is over for
> that cylinder. It could be sleeved back to stock bore at high cost, but I'm
> unaware of any kit that will fit. Worse, Bendix-Italia will not sell just a
> master cylinder: whats available is an entire new power brake assembly.
> It's
> reportedly the same unit as used in 308-series Ferraris, by the way...
> This is why you see myriad different master cylinders adapted to Panteras'
> OEM power brake assembly. When I lost a master cylinder a few years ago, my
> choice was a complete GM power brake assembly adapted by Precision
> Proformance to fit the Pantera. The booster diaphragm assembly is slightly
> larger
> while fitting the Pantera so you get more power assist, the (aluminum)
> master
> cylinder is larger bore (and rebuildable) so it accomodates larger bore
> aftermarket calipers, and its cheaper than an OEM assembly. Plumbing it for
> new
> lines may be a bit of an issue for some but IMHO the Pantera's stock brake
> plumbing can stand some redesign anyway. FWIW- J DeRyke
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