[DeTomaso] Aftermarket Master safety issue

Sean Korb spkorb at gmail.com
Tue Sep 2 13:13:37 EDT 2008


Hi Pantera land,

I've found a problem with my brake booster, and I'm considering sending it
off to the guy at brakeboosters.com but I discovered an issue while I was
doing a diagnosis.

My brakes were staying on and the pedal remained depressed after I lifted my
foot from the pedal, and would eventually return to the normal position.
This caused the brakes to drag and heat up my rotors a little though it
would generally only hold for 7 or 8 seconds.  I thought this could be
caused by the master or possibly a frozen caliper, but it could also be the
booster so I disconnected the vacuum source and took it for a test drive.

I have the aftermarket SVO Mustang aluminum master with the adapter on my
Pantera with the 1 1/8" bore and I could stop the car, but just barely
without the power assist.  It stopped straight and didn't exhibit the
problems I was seeing with the booster, so a replacement is called for.

I can bench 400 lbs with my right foot and I can't lock the brakes up front
or rear above 10MPH!

Since stock bore is 7/8" is it safe to assume that running with no booster
makes the car unsafe if you are using a 1 1/8" bore master?  Maybe it's
because my tires are too sticky or my new Porterfields aren't grippy, but
this would be very scarry at highway speeds.

sean

-- 
Sean Korb spkorb at spkorb.org http://www.spkorb.org
'65, '68 Mustangs, '68 Cougar, '78 R100/7, '59 Austin A35, '71 Pantera #1382
"The more you drive, the less intelligent you get" --Miller
"Computers are useless. They can only give you answers." -P. Picasso



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