Besides the disintegrating OEM hose problem (black colored fluid is usually from carbon black out of the rubber), I've seen calipers that could not be bled due to hard varnish plugging up ports. It had been so long between servicings, I had to DRILL one guys bleeder screw to bleed a rear caliper! The owner had never noticed a problem....
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.