Front disc brakes will not release on 72 Europa Twin Cam

[marks]

I removed the pads; and they all seem to be tight; both sides.

[4129R]

They should move along the two pins freely, but not too freely. .

[jbcollier]

Pads removed, are the wheels now free?

You can sand excess pad thickness off with sandpaper and a flat surface.

[4129R]

Pads removed, are the wheels now free?

You can sand excess pad thickness off with sandpaper and a flat surface.

My problem was the metal backing plates were rough and didn't slide in the calipers properly, not the thickness of the brake pad material.

[marks]

I solved one of the problems on my brake issue as the pads were too thick for the rotors.  Second problem:  I have rebuilt the brake master cylinder and there is pressure coming out of the rear port (closest to the firewall) but no pressure coming out of the front port.  Suggestions?

[Roger]

I solved one of the problems on my brake issue as the pads were too thick for the rotors.  Second problem:  I have rebuilt the brake master cylinder and there is pressure coming out of the rear port (closest to the firewall) but no pressure coming out of the front port.  Suggestions?

Air! Are you trying bench bleeding?

[marks]

Yes, I am trying bench bleeding.

[jbcollier]

35 year as a mechanic and I don't rebuild brake masters anymore.  I only fit new.  When I'm screaming down a mountain pass, I want them to work.  If you are restoring a trailer queen then originality comes into play.  Driver?  Just fit new.

[MRN I J]

35 year as a mechanic and I don't rebuild brake masters anymore.  I only fit new.  When I'm screaming down a mountain pass, I want them to work.  If you are restoring a trailer queen then originality comes into play.  Driver?  Just fit new.

46 years as a mechanic - ditto

[marks]

I appreciate the feedback buying a new brake master cylinder.  It seems like originals are not out there.  Is there one that I can use with the same port line set up, that will work as an original?  Thanks for the help!

[jbcollier]

What is the bore size of your original master cylinder?

Do you have twin brake boosters?

[Roger]

He says it's a 72 TC, so the unobtainable MC. There are on this forum several alternatives. I have  a Triumph Spitfire MC with remote reservoirs. I think there's a Grumblebuns post listing alternatives people have tried.
I had fitted the Datsun MC, lovely light bit of kit, but eventually it failed and can no longer be found. Shame!

[jbcollier]

Still want to know exactly what "Marks" has before making a recommendation.

[marks]

I do have the 2 brake servos.

[jbcollier]

Do you know the bore of the master cylinder?

Are the boosters still hooked up?

Myself, heretic that I am, I would remove the boosters and "miles" extra piping.