16-10-2019, 10:05 AM
I'm assuming the tube is not only to make it easier to get at, but to hold a charge of oil to feed that area? The clutch pedal needs to be depressed to access the threaded hole to drop oil in without the tube, making it difficult to oil. Also it would make it difficult to screw a tube in without risk of dropping it into the housing. I wouldn't mind betting there is already one in there rattling around.
1935 AAK Tourer