>A couple of things that you may like to check: >Are the calliper bleed screws at the uppermost position? I feel stupid >asking this from a veteran like yourself but I've seen strange things in the >pits like callipers installed upside down on a formula car.
The calipers are oriented correctly, yes. >What is the condition of the hoses? They can swell on pressurising and they >also sometimes fail internally so a flap of rubber forms like a one-way >valve giving a firm pedal sometimes and soft the next. I don't expect you to >be using hoses that are more than 2 seasons old on a race car though. This is a LeMons car, after all. The hoses look fine. If the proportioning valve doesn't solve the problem, I will replace them. That said, I'm not sure how bad hoses would cause the problem we're seeing. If swelling hoses were causing the pedal to drop, then I would think we would not be able to pump up the system and get any pressure. The fact is, we can pump up the pedal and get great pressure, release the pedal, then 10 seconds later the pedal will sink to the floor on one pump. bs -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
