hyd clutch slow to return , experts please

[hermetic]

length of the master cylinder connecting rod could be critical! if it is not allowing the recuperating hole in the piston to open to the fluid reservoir thats the problem! set up on the bench you wouldnt see it!

 

[steveo3002]

length of the master cylinder connecting rod could be critical! if it is not allowing the recuperating hole in the piston to open to the fluid reservoir thats the problem! set up on the bench you wouldnt see it!

its fixed /nothing adjustable although i have pondered if i can make it adjustable

any suggestions how to see if its allowing this hole to work properly?

 

[hermetic]

disconnect it from the pedal and see if it returns more? Can you swap the rods over and fit the shorter one to the new master cylinder?
when the Mcylinder is in the rest position the hole is open to the reservoir, the first few mm of travel close it off, and the piston must return fully to open it again or it will be trying to draw a vacuum in the fluid.
Phil

 

[steveo3002]

the pedal has it pulled to max travel once its popped back

the different length rods are with the slave

 

[hermetic]

ok that shouldnt make a difference..........................or would it? there is a possiblity that the slave is returning to its minimum rest position and the fluid is holding the M Cylinder piston back, try swapping the slave cylinder rods, it might work! I am running out of ideas, but it is a simple thing which shouldn't give a problem yet something is causing it!

 

[hermetic]

is there a return spring on the slave cylinder? faulty new flexy pipe?, does the pedal pop up if you apply pressure to the slave cylinderif you can?

 

[steveo3002]

i have in the past swapped the slave rods over , it made little difference or if it did made the bite point lower

slave does not have a spring

tried several pipe combos all same , others are running this brand with no comments

cannot touch the slave in situ

 

[hermetic]

Buggr!