Xantia Caliper drag

[lexi]

I`ve got a very slight drag on the 1.9td estate. Rear N/S.

I have had a go with die grinder to remove ridge at inside circumference of disc. I thought the pads may be sticking on it. The squeak is intermittent. Never get it when raining or roads are wet.

IME N/S rear calipers get more of the grunge and seem to give trouble as a result. I have already renewed a front O/S but that was deffo seizing.

Anyone had issues with the slide before I go back in again. The discs and pads are within spec I think.

[Peter.N.]

If its only squeaking and not getting hot, I wouldn't worry about it. The only thing you can do is take the piston out and clean it. You might get away with squirting some fluid in under the dust seal and levering the piston in and out to free it up.

[citronut]

sounds like the imfamous corosion build up between the calliper and susp arm, remove calliper clean/remove corosion them follow steve's (myglaren) sudgestion of placeing a thin plastic membrain and grease between calliper and arm, to try and prevent further build up

regards malcolm

[dieseldoggy]

on mine when it did that i zipp wheeled it all clean and copperslipped it so nothing gets behind it.or you could try that black?grease they use on marine or such like that is imper to water

[citronut]

i think it was AndersDK said alloy and copperslip react against each other, so maybe its not good to use it at this point

regards malcolm

[lolingram]

sounds like the imfamous corosion build up between the calliper and susp arm, remove calliper clean/remove corosion them follow steve's (myglaren) sudgestion of placeing a thin plastic membrain and grease between calliper and arm, to try and prevent further build up

This is the way to go, since the problem is essentially electrolytic in nature. Isolation is needed between anode and cathode, and the electrolyte, which in this case is the contaminated water and salt over the years.