400 ssn rear caliper

[Fred]

One of the piston seals on my rear caliper is leaking
Does anyone know where i can get replacement seals or even the pistons as well.Its a 92 model,don't know if that makes a difference

[Katman]

Baz, the parts book CD should be with you any day, I posted it yesterday

[Fred]

I've just ordered a complete piston kit for the rear caliper from Robinsons foundry for £56.64
Thats with club discount (cheap plug).
I went for the full kit as it was only about £15 quid more than the seals on their own

Just need to find out how to bleed brakes now

[Fred]

Cheers Jez, I need to get the bike back on the road sharpish to save petrol money over the car.That was the excuse i used on the mrs to get the bike in the first place

[Fred]

The piston kit arrived today

With each piston there is one thick seal and one thin seal,ok so far.Then at the bottom i found a very small round seal ,if stretched you cound maybe just get a biro through it.
Does anyone know what this one is for


Whats the best way to get the old pistons out Pump one out with the pedal then grab the other one with a pair of swan neck pliers I have'nt got an air line so is there a manual way of doing it

[Katgeezer]

Baz,the small 'o'ring goes inside the caliper which you probably won't need to worry about unless you want to split it. If it's left un-disturbed then it'll probably be fine.

Take the pads out and pump the pedal to get the pistons as far out as possible then hopefully they'll drop out. If one pumps out sooner/further then use a G-clamp to hold the freer one which will force the other to move.

If you get any problems you know my number and I'm R/D this w/end

[Fred]

Cheers Geezer.

I don't think i'm going to have a chance to have a go at it till monday.Got alot on this weekend and i'm r/d monday tuesday.

So at least the neighbours won't hear me shouting and chucking my spanners out of the pram

[Fred]

The Grim northern weather has arrived down south so due to not wanting to get any rain in side the caliper looks like the bike will have to wait a bit longer

But i suppose its perfect weather to get under the car and change the oil,should be dry under there

[Fred]

The grim northern weather stopped just long enough for me to get the new caliper pistons and new seals fitted and knacker the rear brake fluid reservoir
I resently had to change the two srews holding the lid on because one was the wrong thread and the other was nearly rounded off when i did this i was stupid enough to forget to put some greese on the threads
So when i tried to take the top off today i ended up with one snapped screw and the other one properly rounded off what makes it feel worse is it's my fault



One step forward two steps back

[callyboy]

Can you drill em out Baza ? those screws are little buggers aint they ! I replaced all my ones with allen key ones. Got a few if you want em. Whats the reservoir like ? i got a couple spare ones. got a pic ?

Cheers

Pete