I am battling with a Ford bantam 2011 1300xl.
Above the back axel there's a pump or cylinder
thing. It is leaking I have a photo is done one could
help. To me it looks like a pin is missing
That is the rear brake load valve. It vearies the brake fluid pressure on braking to the rear brakes depending on the weight of the rear body. The lighter the load, the less fluid pressure at the rear brakes. The heavier the load the more brake fluid pressure to the rear brakes.
Thank you I have come right and know my problem a friend mechanic got back to me thank you very much.