[DeTomaso] question about adjusting power brake booster

[B. Seib]

I believe Roland and Steve are correct.

The factory original pushrods were nicely made little adjustable devices.
The aftermarket shlop that has replaced most of them are NOT adjustable.
Ford TSB #83 is the best instructions for how to adjust the factory pushrods
and clearances (if you still have yours).

The same goes for the black plastic pushrods. They aren't original parts
either.

Jack's comments about sticking pushrods when hot are also related to
aftermarket bodges as there is no such sleeve in an original factory part.

We shouldn't blame problems on original parts when a lot of the troubles are
actually with parts that aren't original at all. There's so many adaptations
on Panteras, people are starting to think it's all original stuff!
We also have some pretty questionable repro parts parading as "original
DeTomaso parts". Very confusing. The safest stuff is in the blue and white
FORD boxes, but it's very hard to find. Getting real original quality parts
has been the most frustrating part of the Pantera experience for me.

Barry

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I have never seen any non adjustable rod.

Roland

--------------------------------------------------
From: "Steve Hawkins" <shawkins777 at comcast.net>
Sent: Tuesday, April 03, 2012 8:08 PM
To: <JDeRyke at aol.com>; <boyd411 at gmail.com>; <detomaso at realbig.com>
Subject: Re: [DeTomaso] question about adjusting power brake booster

> My outer rod is adjustable, it has a screw on the end that can be adjusted
> longer or shorter.
>
> Steve
>
> -----Original Message-----
> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at
realbig.com]
> On
> Behalf Of JDeRyke at aol.com
> Sent: Tuesday, April 03, 2012 12:58 PM
> To: boyd411 at gmail.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] question about adjusting power brake booster
>
>
> In a message dated 4/2/12 7:18:52 PM, boyd411 at gmail.com writes:
>
>> Can someone tell me how do you adjust the pushrod in the power brake
>> booster?
>>
>
> Which one? The short outer rod that causes trouble in adapting other
> brands
> of master cylinders is non-adjustable except with grinders, hacksaws or
> welders. The inner one that goes between the diaphragm & foot pedal
> threads
> in &
> out once you remove the connecting bolt at the pedal. There is no direct
> connection between the two.
> In case its the short outer rod giving trouble, the idea is to slack off
> the master cylinder nuts and closely observe the joint between MC and
> boster:
> if the MC pops out a little, you will need to shim the MC by that much
> plus
> a 'little' or shorten the rod by the same amount. A second problem
> associated with the outer rod is when the adapter plate has a tight
> fitting
> plastic
> guide-bushing in it. When the front trunk gets hot, everything expands but
> the bushing is constrained so it squeezes inward, grips the rod and the
> brakes
> stay on. The fix is to hand-ream the hole in the plastic a little larger.
> I've done this to cars during club outings using a jacknife. Good luck- J
> Deryke
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