Posted by Robert Kosusnik [209.112.209.159] on Saturday, September 22, 2012 at 03:35:02 :
In Reply to: Spare cap for master cylinder? posted by wayneh [68.55.55.71] on Friday, September 21, 2012 at 19:57:14 :
You can use a pipe plug. I think it's 3/4 NPT. Center punch, drill, and tap it for the adapter that you want to use. I use an M37 master cylinder on my WDX and it has an 1/8th inch pipe vent on the side. When I needed to bleed the brakes I just removed the vent and screwed in the fitting for my pressure bleeder.
Good Luck
Robert