Hendrixwannnabe1
Member
Hi there all,
I have just installed a new rotor on front and put new seals in the calipers. After reinstalling components i have been unable to get proper pressure in front brake lever even after bleeding and cycling the abs many times. I have some pressure but need to pull lever right back and its not road safe.
I made the mistake of not plugging the lower banjo bolts somehow and the whole system drained and obviously filled with air.
I just did a standard bleed to prime up the system.
Procedures i have tried since....
*cracking the right bleeder and allowing it to slowly gravity bleed over 30-40mins
*took calipers back off, secured the pistons and suspended them up right from a rope off ceiling, attempted to bleed while they up high.
*compressing lever overnight, both with resevoir open and closed, makes no difference.
*massaged the abs unit and as many pipes and hoses as i could get to with a massage gun, silly i know.
*attempted to reverse bleed, no air comes out of top, only fluid.
*used air compressor pump
* cracked all the banjos i can get to easy
All these techniques simply produce nice clear fluid from bleeders, no air. So its gotta be trapped somewhere.
Im completely out of ideas so willing to attempt anything suggested.
Is it possible to completely remove all braking components and bench prime whole system before reinstalling??
Would attempting to burp and prime the abs module while still under the seat effectivly remove trapped air?? ie. Detach the in and out lines for the front brakes at the module and force fluid into module and hopefully burping out any air?
Rear brakes seem fine and everything else worked fine before i installed new parts.
Thanks, any help much appreciated.
I have just installed a new rotor on front and put new seals in the calipers. After reinstalling components i have been unable to get proper pressure in front brake lever even after bleeding and cycling the abs many times. I have some pressure but need to pull lever right back and its not road safe.
I made the mistake of not plugging the lower banjo bolts somehow and the whole system drained and obviously filled with air.
I just did a standard bleed to prime up the system.
Procedures i have tried since....
*cracking the right bleeder and allowing it to slowly gravity bleed over 30-40mins
*took calipers back off, secured the pistons and suspended them up right from a rope off ceiling, attempted to bleed while they up high.
*compressing lever overnight, both with resevoir open and closed, makes no difference.
*massaged the abs unit and as many pipes and hoses as i could get to with a massage gun, silly i know.
*attempted to reverse bleed, no air comes out of top, only fluid.
*used air compressor pump
* cracked all the banjos i can get to easy
All these techniques simply produce nice clear fluid from bleeders, no air. So its gotta be trapped somewhere.
Im completely out of ideas so willing to attempt anything suggested.
Is it possible to completely remove all braking components and bench prime whole system before reinstalling??
Would attempting to burp and prime the abs module while still under the seat effectivly remove trapped air?? ie. Detach the in and out lines for the front brakes at the module and force fluid into module and hopefully burping out any air?
Rear brakes seem fine and everything else worked fine before i installed new parts.
Thanks, any help much appreciated.