Join Date: Mar 2014
Location: Cobble Hill, BC, Canada
G valve is on the rat trap directly above the master cylinder. Yes you should adjust the master pushrod to have some free play. While you're in there, make sure both of the distribution valves have clearance too and that one is not hanging up. That could be the cause of rear brakes staying on as could collapsed rear flex hoses. They collapse inside and act as one way valves.