The oil does not need to be pressurized, there are many old style engines around that simply have small chambers of oil that use gravity to feed the...
One of my personal saxes is a grassi, the question arises does the pad close at all, is it touching in any spots at the moment or is it staying open...
Unlike gordon, I dont take offence to your remark, speed is very important, I make a living from repairing instruments, sometimes its not easy and is...