MG
The Classic Marque

Maybe post on Midget general, MGA, T-type etc. as well.

Photos finally arrived.

PS A note to the unwary: with an older secondary seal put back onto the piston for comparison just now, I did manage to get strong expulsion of fluid - including, scarily, out of the filler hole in a veritable spout. Straight towards my eyes! Something wrong somewhere.

Righto - couple of pics of the piston sans rubbers; and some measurements (doing the best I can with digital vernier gauge).
Separate lower indent: 0.760 ins
Middle indent: 0.720 ins
Top indent : 0.590 ins.
As said earlier, the o/d of this piston at its 3 widest points is (controversial, I know!) anything from 1.000 to 1.002 ins depending on whether I squeeze the gauge or just let ...

JP

Sorry, no pictures and none for sale. They are hen's teeth.

Sadly (for you at least) the only thing I can offer you by way of assistance is again to recommend you contact C&C and send them (insured and tracked for at least $250US) yours for repair and return (via insured and tracked). It will not be cheap, but it will be done correctly and other than final pedal adjustment ...

Hell - sorry, forgot that pic, so I'm off to the shed to organise that - plus I'll update what transpired yesterday. Back soon.

That piston(11) in the pic looks more like how i remember YA cylinders to have---i put a pic up earlier in this thread and asked John to take his seal off so we could have a look-----------

Probably just wet rotors Flip. specially if you happen to have the dust shields removed.
Quite normal with motorbikes to have crap/viabratey brakes in the wet first aplication
And bicycles--very dodgey brakes until the water gets dispersed.

hi all- is this the right place to advertise my collection of enjoying mg mags- I've had trouble posting so any tips would be welcome- thanks

Further to my post yesterday, been doing more research on the NJ2 master cylinder fitted to the Y. I cannot understand why my piston has 400 emboss on it, when it is part number 427. The secondary cup has the part number 400, so is this indicating what cup should be used with that piston?