Note that EACH end of the shuttle valve has a shallow groove. Should one brake "circuit" fail, the valve moves to the failed (low pressure) side and RESTRICTS fluid flow to that "circuit".
Repeated applications of the brake pedal will eventually empty ONE of the master cylinder's reservoirs, but the dam within the master cylinder's reservoir will retain sufficient fluid to operate the non-failed circuit.
John
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.