Brake Fluid Leak- Bottom of Master Cylinder Reservoir -- 2010 Polaris

[maximumpsi]

This weekend I noticed a small amount of brake fluid drips from the master cylinder reservoir on the handlebars. The fluid is leaking from a very small hole in the bottom (front left side) of the reservoir. I bought this sled new 1 year ago and it has 2229 miles on it. I haven't touched the brake fluid reservoir since then. Does anyone know why oil is leaking from that spot? Is it just a set screw in that hole that needs to be tightened? The sled is a 2010 Polaris Dragon Switchback. Thank you. John

 

[skeeter2010]

Is the hole in line with the plunger? If so I would say you need to rebuild the master cyclinder if not I would say you need to rebuild the master cyclinder. It should be pretty cheap to do and not all that difficut

 

[snoeatr]

I think there is an o-ring on the bottom that leaks. Not sure on that new of a sled but older chasis had an issue. Its an easy fix and cheap part if u no longer have a warranty.

 

[skeeter2010]

Is the hole in line with the plunger? If so I would say you need to rebuild the master cyclinder if not, I would say you need to rebuild the master cyclinder. It should be pretty cheap to do and not all that difficut

I take it back the rebuild kit cartridge is $166 which is crazy for that, you can buy a whole new control the whole left side for $207

 

[maximumpsi]

Thank you, skeeter2010 and snoeatr. I'll start taking things apart until I find a defective 0-ring or part.