caliper 351.425/426 file pins or reposition

[orsum]

I am about to overhaul my recently acquired 996.351.425/6 calipers but before I do I will be fitting them to the car to ensure no further work will be required once overhauled and powder coated.

I am told there is a need to remove about 2mm from each pin with a grinder.

Looking at the calipers there appears to be a grub screw that is holding these pins in place.

Has anybody ever tried to move the pins rather than grinding them down?

orsum

S2 ABY Coupe

[A1QSHIP]

I am about to overhaul my recently acquired 996.351.425/6 calipers but before I do I will be fitting them to the car to ensure no further work will be required once overhauled and powder coated.

I am told there is a need to remove about 2mm from each pin with a grinder.

Looking at the calipers there appears to be a grub screw that is holding these pins in place.

Has anybody ever tried to move the pins rather than grinding them down?

orsum

S2 ABY Coupe

I was going to drive out the pins on mine but decided to grind them off instead when I saw that they were pinned in place. I used a small metal hose clamp as an end stop so as not to grind too much off.
HTH, Chris

[UrS4boy]

Looking at the calipers there appears to be a grub screw that is holding these pins in place. Has anybody ever tried to (re?)move the pins rather than grinding them down?

Those pins have purpose related to keeping the pads in place/limiting twisting due to torque during braking and probably should NOT be removed.

Just sayin'. Brembo engineers put them there for a good and valid reason and therefore they should remain, albeit shorter to provide rotor clearance as needed.

[orsum]

I was not going to remove them, I was thinking of backing them off and not grinding the pin.

Certainly looks like a dowel locking the pin in place, hoping it was a grub screw.

Looks like grinding is the way to go.

orsum

[quattrodave]

Split dowel, easy enough to knock out and back in again, I did this on mine as some idiot who owned them previously had not ground the ends square so I took them out and did them on the bench to ensure they all matched in length and were square.

The pins have a recess for the split dowel to ensure they locate correctly, easy enough to file a new one in a slightly different place after I ground them square (otherwise they would have been slightly too short) before refitting.