I’ve read several threads on the topic of M/C’s and what to do when doing a disk conversion and it’s not working for me. I’m in the last stage of a total Dana 44 rebuild and Ford disk conversion using 79 bronco parts. I'm back on teh road if I can get this sorted out.
I removed the residual pressure valve or what I think is the residual pressure valve (rubber stopper and spring no ball found) from the rear reservoir on my drum/drum M/C and now the peddle goes to the floor. There are no leaks in the system. I’m doing this in my shop and there is noting on the floor and all fitting are dry.
Steps in the process
I took the drum/drum M/C off, removed the RPV and bench bleed the M/C. Install M/C back on the truck, gravity bleed the new front calipers then moved to the rear and pressure bleed them both. Then came back to the front and pressure bleed them (thanks to the wife for pumping the peddle all afternoon). Result, was no peddle. Re-bleed the system again starting at right rear, then left rear, right front, left front, still peddle goes to the floor.
Had a buddy come over to try and sort this out and we found you can pump the living hell out of the brakes and you will get peddle and it will hold. Jacked up the front and verified the calipers are moving and that once pumped up, the wheels can’t be turned.
When you even lightly let off the peddle after pumping it up, fluid gushes back to the M/C (due to the removal of residual pressure valve ?).
I know it sounds like air in the system but I’ve bleed brakes many many times and have never had this problem.
I was thinking about buying a new M/C but I need the line connections on the drive side and after reading several posts, I’m still confused as to which one to get. What's the deal with the camper special M/C? Is that my golden ticket?
Suggestions please
Tim
I removed the residual pressure valve or what I think is the residual pressure valve (rubber stopper and spring no ball found) from the rear reservoir on my drum/drum M/C and now the peddle goes to the floor. There are no leaks in the system. I’m doing this in my shop and there is noting on the floor and all fitting are dry.
Steps in the process
I took the drum/drum M/C off, removed the RPV and bench bleed the M/C. Install M/C back on the truck, gravity bleed the new front calipers then moved to the rear and pressure bleed them both. Then came back to the front and pressure bleed them (thanks to the wife for pumping the peddle all afternoon). Result, was no peddle. Re-bleed the system again starting at right rear, then left rear, right front, left front, still peddle goes to the floor.
Had a buddy come over to try and sort this out and we found you can pump the living hell out of the brakes and you will get peddle and it will hold. Jacked up the front and verified the calipers are moving and that once pumped up, the wheels can’t be turned.
When you even lightly let off the peddle after pumping it up, fluid gushes back to the M/C (due to the removal of residual pressure valve ?).
I know it sounds like air in the system but I’ve bleed brakes many many times and have never had this problem.
I was thinking about buying a new M/C but I need the line connections on the drive side and after reading several posts, I’m still confused as to which one to get. What's the deal with the camper special M/C? Is that my golden ticket?
Suggestions please
Tim