I was browsing the Chilton manual and ran across this. I have never heard this before. Has anyone ever did this? Does it need to be performed this way?
"On cars with front disc brakes, it will be necessary to hold in the metering valve pin during the bleeding procedure. The metering valve is located beneath the master cylinder and the pin is situated under the rubber boot on the end of the valve housing. This may be taped in or held by an assistant."
