I was wondering today what I'd do if I suddenly had all the hours back that I've spent battling the initial bleeding of vw trike brakes. Pretty sure I'd be young again, so....
So I spent another frustrating day farting around trying to do what should be the simplest of jobs, bleeding brakes. I have a new 5/8 cnc mc and a vw type 3 rear end. The mc is lower than the wheel cylinders, so I have a residual valve also. I also lifted the front of the trike til the mc was higher than the brakes. I'm getting full travel of the plunger, full in to full out. I have run an ocean of clear brake fluid through the thing without a bubble, and still scratching my head. I've been through the process on a dozen trike builds, and still don't know how to do this job correctly? This is the sort of thing you don't even want to admit in public.