Re: Aftermarket Front Master Cylinder Replacement Kit Guide

[Martin]

Now that the exorbitant cost of rear brake master cylinders has been solved by the Young Engineer and The Mighty Gryphon we now need a cheap kit for the front master cylinder. I have looked at Ducati and Moto Guzzi kits and I believe that one or the other should have one to suit.


Both local dealers were non cooperative when I approached them on the subject of the rear master cylinder, so I don't think I will get any further cooperation. I was hoping that one of the inmates with a line into one of the above, and possessing a front master cylinder or kit would approach a more cooperative US ,UK  or OZ dealer and see if he could come up with an cheaper alternative.


I am sure some of our poorer brethren (me included) would greatly appreciate their effort, and send forth much praise and adoration in return for their efforts.
Regards an anticipative Martin.

[Martin]

Just got back from chasing up a cup and boot supplier. I a good talk to Glen the guy that owns the business, he seems to be one of two places in OZ the other is in Adelaide SA. He is a really nice guy and was very helpful. He sleeves the old cylinders in imperial stainless and the OEM pistons do not fit, so he makes new pistons out of brass. He does not like doing the rear OEM cylinders as the plastic piece for the reservoir is extremely hard to get out and it invariably breaks he then has to make a new one out of brass with an "O" ring   seal. He was reluctant to give a price on doing these and when I told him about the Chinese ones he said good. Cylinder sleeving costs $200.00 and under a two week turn around he gets cylinders from all over and will ship. He does guarantee and test them, but you need to tell him if they are not going to be used. Because if left sitting the brake fluid dries out and forms crystals which will cause the cylinder to leak. Replacement cups for his cylinders are $10.00 replacement boots are $4.00 picture attached. I asked him about the special tool to get the cups back on to the pistons. What he uses is a couple of well linished screw drivers with no sharp edges and plenty of rubber grease. I also dropped in on a mate and he is willing to make up a special tool out of stainless if needs be, if I can supply the measurements. I also got a bit more aluminium stock but I am concerned about the wall thickness required when placed over the piston. Before I can proceed I need someone to supply accurate measurements of the front master cylinder piston.
Regards Martin.