KA brakes binding, anyone heard of master cylinder sticking?

[FreezerWeasel]

enquiring for a mate whose KA i'm going to end up having to fix...

t reg, standard jobbie, other night car had slowed right down, pulled over to check and NSF arch had burning smell (no glowing disc tho). i've assumed the caliper is binding but haven't had time to actually get it in the air until tomorrow.

doing a bit of preparatory research this evening and i'm finding half-mentioned references to the master cylinder sticking on these, something to do with central rod binding?

has anyone heard of this or can they advise of common faults/likely solutions please? i won't have access to the internets when i'm working on the car so i'm trying to prepare myself beforehand!

cheers in advance

[klimakool]

we had one a year ago that had been diagnosed at an mot station, customer brought car and part to us to do repair, mot station had already changed discs pads and calipers to rectify with no luck, customer took hunch from net research and after we fitted it no more problems.

[FreezerWeasel]

klimakool said:

we had one a year ago that had been diagnosed at an mot station, customer brought car and part to us to do repair, mot station had already changed discs pads and calipers to rectify with no luck, customer took hunch from net research and after we fitted it no more problems.

cheers klimakool. sorry to sound thick, but did you replace the master cylinder and did it fix it, or did it just need freeing off somehow?

[klimakool]

replaced it, wasnt bad really, needed alot of bleeding though and took ages to proper belled hydraulic cluch release, get an eezibleeder from halfords and use the tyre pressure to bleed it, doing it by foot pumping pedal wouldnt work for us

[FreezerWeasel]

klimakool said:

replaced it, wasnt bad really, needed alot of bleeding though and took ages to proper belled hydraulic cluch release, get an eezibleeder from halfords and use the tyre pressure to bleed it, doing it by foot pumping pedal wouldnt work for us

cheers again

[330p4]

Surely if it is master cylinder both fronts would be locked on ? Have seen rubber flexi hose collapsed internal so when you brake puts them on but take your foot off & hose collapses locking caliper on worth a check!
Ian

[330p4]

Surely if it is master cylinder both fronts would be locked on ? Have seen rubber flexi hose collapsed internal so when you brake puts them on but take your foot off & hose collapses locking caliper on worth a check!
Ian

[FreezerWeasel]

they were both locked on. freed off and lubricated pistons/sliders on both sides at front, then gave master cylinder a bloody good couple of whacks and a good spraying.

they've been working fine for over a week now (fingers crossed)