new Viton O-rings

[tony 2]

is anybody selling new Viton O-rings please ,i got a autochoke not working on a new to me rover 820

[mgdavid]

try a PM to E_T_V

[E_T_V]

I stopped selling them years ago when the club started selling them so I don't think I have any left once my stocks ran low.
This is probably the easiest answer - http://www.ebay.co.uk/itm/VITON-O-RI...hPiz0L4wQaNP7Q (size is BS013)

[Mreasto]

I have just removed the hard O-rings from my choke stepper motor.
The inner diameters of the brass shaft for the O-rings seems to be different in that the inner one appears to be about 12mm whereas the outer one is about 10.5mm. Does this make any difference to the operation of the O-rings?
The suggested O-ring material is Viton and to BS013 as suggested by E_T_V. However Viton appears to be a trade name and there are a number of differing alternative materials inclduding FPM & FKM. Does the choice of mateial affect the performance of the O-ring or should I just buy the cheapest?
Thanks