I should have rechecked what I just said. I now do believe that the boosters with brake fluid also incorporate a return valve mounted on the inlet manifold.
That said, there are several areas on these boosters that frequently cause problems which doesn't apply to the pendulum pedal type booster. Biba -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
