Hi all
Just posting this to help anyone else who suffers the miserable fate of needing to bleed their brakes without much prior experience on RV's. There is already a wealth of information on this forum on how to connect pumps etc so I won't repeat that. However, I understand the RV4 layout is different to other RV's and those tried and tested methods still left me with no brake pressure. There is a loop in the brake line just above the pucks, and the line from the master cylinder to the firewall also makes an arc above the unions, both places seem to be prime collection points for air bubbles.
After pumping fluid up from the bleed nipple to the reservoir, I disconnected the line going into the top of the master cylinder. I kept pumping to make sure fluid was getting to that union then closed the bleed nipple. I then attached the tubing to the top union of the master cylinder and pumped fluid through the master cylinder to the reservoir. After reattaching all the lines I had great brake pressure. Hope this helps someone else.
Gary
Just posting this to help anyone else who suffers the miserable fate of needing to bleed their brakes without much prior experience on RV's. There is already a wealth of information on this forum on how to connect pumps etc so I won't repeat that. However, I understand the RV4 layout is different to other RV's and those tried and tested methods still left me with no brake pressure. There is a loop in the brake line just above the pucks, and the line from the master cylinder to the firewall also makes an arc above the unions, both places seem to be prime collection points for air bubbles.
After pumping fluid up from the bleed nipple to the reservoir, I disconnected the line going into the top of the master cylinder. I kept pumping to make sure fluid was getting to that union then closed the bleed nipple. I then attached the tubing to the top union of the master cylinder and pumped fluid through the master cylinder to the reservoir. After reattaching all the lines I had great brake pressure. Hope this helps someone else.
Gary