Technical

Does anyone have any idea how I can repair the cylinder / valve block on my Mallard ?. I have spent much time getting a very used Mallard to the point of running (including replacing the boiler thermostat, new lights pcb, repairing the electric motor, etc, etc) only to have the right hand cylinder come away from the valve block (see attached photo). Should anyone have a spare assembly of this item, I am more than happy to purchase.

Thanks,

Keith