Master cylinder upgrade - Input requested
Originally written by Hack'n on 3/9/2009 12:35 PM
You might check with Motorvation or others and see if they will sell you one of their sidecar brake pedal/master cylinder assemblies. Some are bolt on accessory items.
Lonnie
Cool. I will do just that.
a couple of things to remember here,when bleeding brakes always start with the longest line furthest away from master cylinder.you can also reverse bleed them with a fluid pump with the master cylinder cap off you attach the hand pump hose to the open bleed nipple and fill the system from the bottom to top this displaces the air out through the brake resovoir and fills the resovoir with brake fluid close bleeder and repeat on other line.secondly check you brake pads if they are worn and having to travel quite far you could be stretching the limits of the fluid on brake application ie emptying the resovoir not normal but where you have tee'd into a line and now wanting to operate 2 brakes instead of one,if you have all the air out and the resovoir full...this should be ok.once the system is full and free of air it takes little to displace the piston providing you have enough resovoir capacity.pumps (which is all a master cylinder is)displace volume not pressure,pressure is created by resistance to flow,so with no air and no leaks your brake lever/pedal should be hard.dont know whats on a rocket 3 for braking i am guessing it doesnt have abs if it did this opens another can of worms.
jota
Originally written by jota on 3/10/2009 9:44 AM
a couple of things to remember here,when bleeding brakes always start with the longest line furthest away from master cylinder.you can also reverse bleed them with a fluid pump with the master cylinder cap off you attach the hand pump hose to the open bleed nipple and fill the system from the bottom to top this displaces the air out through the brake resovoir and fills the resovoir with brake fluid close bleeder and repeat on other line.secondly check you brake pads if they are worn and having to travel quite far you could be stretching the limits of the fluid on brake application ie emptying the resovoir not normal but where you have tee'd into a line and now wanting to operate 2 brakes instead of one,if you have all the air out and the resovoir full...this should be ok.once the system is full and free of air it takes little to displace the piston providing you have enough resovoir capacity.pumps (which is all a master cylinder is)displace volume not pressure,pressure is created by resistance to flow,so with no air and no leaks your brake lever/pedal should be hard.dont know whats on a rocket 3 for braking i am guessing it doesnt have abs if it did this opens another can of worms.
jota
Thanks for the tips Jota. No abs, so no problems with cans of worms.
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