TOPIC:

Anybody experienced or have any suggestions about sticking brake calipers?
When I 1st got my Nordie here i found the bake brake could stick if you used the brakes, if you stopped and rolled the bike backwards a couple of feet it released.
I bought and fitted a new set of pistons and seals for front & rear from Uncle Bob and thinking all would be well went out for my Sunday ride thought I had some dirt in the carb as the bike slowed from about 140Km down to 100Km so with thought of if it keeps running head for home, after a couple of minutes it picked up again as nothing wrong, the next junction I slowed and thought the brake pedal had fallen off, it was sooooo long.
I cooked the new seals and my previously gold caliper is the colour of well done toast
John

Front or rear?
You have checked your brake pump too?
Some years ago i had some serious break troubble with a car. The hose was clocked.
But it was a simple rubber one, not such rocket technic like on Nordies.
I have never heard that braided brake lines will suck.

ciao joachim

Hi Joachim,
It was the rear caliper and I cooked the seals very well.
I have ordered new seals for the caliper and master cylinder.
I have braided brake lines so don't think they can collapse.
I had the calipers stick and replace the seals recently thinking that would cue the problem.
I have refitted the old seals to make it ride able, until I get the new seals
Regards
John

Not had that on a Nordie. The YZ250 front brake was awful, but new seals cured it. Did you clean out the seal grooves well? Though I suspect grannies and eggs might apply

Hi 72,
All was striped and cleaned the 1st time with new seals fitted and the 2nd time when the cooked new seals were replaced with the old seals.
Fortunately I don't use the back brake much, only for hill starts and we don't have many hills and for control in traffic and junctions, but 100 yards down the road I can feel it dragging, if I stop and leg it back half a turn of the wheel it cures it all a bit weird
John

I used to get some strange graunching noises at walking pace sometimes from the back brake on the hillclimb Nordwest. A bit like binding but very slight. I never ever used the back brake on that as a nice man with a chock used to do the honours for hill starts

The scrutineers used to comment on it occasionally. I suspected the 'floating' mounting plate might be perhaps not aligning perfectly sometimes as frequent changes to gearing meant the position along the slot got altered quite often. I found that slackening the rear spindle nut slightly with the bike on a paddock stand, then spinning the wheel, banging on the back brake hard then tightening the spindle nut with it held on sometimes helped.