Does anyone know the amount of preasure the standard Sierra master cylinder and servo produce? I'm trying to find a dual bore master cylinder that wil suit the Sierra calipers, but without the servo. I've heard tell that a cylinder with a 19mm bore will do the job. If anyone know's of such a master clylinder and supplier, that information would be invaluable.


Cheers,

Chris.

Early 80s base model VW Golf or Polo without servo

Euro parts sell new cylinders for pennies (well almost) but they come without a resevior so a trip to the scrappies is required -- some Ford resevoirs also fit.

Good stuff, there's a branch near where I work. do you happen to know if they have a push rod or if i'd need to make one?

You need to make one, the details of the cylinders end will become apparent when you get hold of one -- I just ground a round head on long 5/16" UNF HT bolt. Only thing to watch is that the piston in the cylinder comes back far enough to clear the recuperating port.

Thanks muchly. Will have a look in on the weekend.