every now and then my brakes lock up and you have to tap the peddal to relses them but sometimes you have to do it a few times adn it gets scarry when backing off......


i have cnc 7/8 master then 2lbs residule valve then singht handle 3/4 cnc cutter, then nisan frount calipers of a 4x4 truck


any help
thanks tanner

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new to the buggy world so any help would be great

bleed them ,bleed them, then bleed them some more

there bleed trust me ive put probly 2 qurts through them and i have a valve stem in the cap to preasure bleed them

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new to the buggy world so any help would be great

don't know then ,it is always air in the line that make them lock up .it took GAhillclimber a year to get his bleed all the way out.air will hide in a small spot.

for some reason i thought someone had talked about a single hadndle cutter being the caouse of it .... something about adjusting it or somethieng

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new to the buggy world so any help would be great

Make sure you have a little bit of slack in the rods that go into your cutting brake plungers. I had mine adjusted all the way out to get the least amount of slop possible in the cutter handle, and my brakes would lock up like that sometimes. I put just a hair of slack in the rods and it quit doing it.

mine was the same way check the cutter rod and the m/c rod has to have slack after the fluid gets warm

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i dont always ride my buggy but when i do im glad it has a bad ass bow tie makin the horsepower

Jesus loves me, but everyone else thinks im an asshole.

Our Lady of Blessed Acceleration, don't fail us now!

I agree, your cutting brake is adjusted too tight. You are getting a little drag on your brakes and after running for a while the brake fluid will heat up, expand, and lock your brakes. Sometimes it gets so bad that you may have to open a bleeder valve to release the pressure. Also, I know that on dual handle cutting brakes, if you hold the pedal while pulling on the cutting brake handles, they act like a parking brake and hold pressure. If you tap the brake pedal it will release them.

thats what one of my buggies does but the other one dont they both have cnc pedals and cnc dual handle cutters one is laydown handles between the seats the other is upright handles on left side of the driver both also have vw calipers and one piece rotors any ideas?????????????

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Just Stand On It!!!!

Chris

The master cylinder has a bypass that should be open. I had one that closed up one time and I got a small bit and cleaned it out.

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If your clutch ain't slippin,, you probably got it adjusted right!!!!!

One thing i learned after years of poor braking in my rail is to bench bleed the steering brake. Most people bench bleed the M/C but overlook the cutter. Never had a problem since.

Dam it!!! I wish I would have read this before I rebuilt my cutters. Now I have to pull my seat out again to loosen it up. Thanks for the info though, it stopped me from rebuilding my master cylinder.

BTW
Is there any other way to unscrew the plunger screw cap besides jamming a screwdriver in-between the push rod and the cap?

Dont know, I've never took the plunger out of one. I was told there is little success rate in rebuilding cutters, so I never tried. Once the cylinders get scratched or worn, new o-rings dont really help them that much from what Tim told me. Yankee tried to do a set and we never could get a satisfactory brake out of 'em.

I have heard the same from several people. Buy new don't rebuild.

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2332cc Air Cooled Screaming Meanie. Predator Singleseat.

"Lets go get stupid"

In order for a cylinder rebuild to work the cylinder must be slightly honed for the new "O" rings, cups and cylinder bore to find a new home and mate. Not much different when you put new rings in a motor piston cylinder. Just replacing the internals is usally a waste of time. Some times it works most times it don't.

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Water cooled Dry Sumped Subaru Powered Turbo Charged Fuel Injected 2500CC Tank. Oh Rah! He who dies with the most Toys not only wins, He also wears them out!

I honed them. I rebuilt a set of jammers 5 years ago and they still work. Tha jammers had a snap ring holding the piston in but these cnc's have a threaded cap and a set screw. Using a screw driver works its just a PITA because the set screw marrs up one spot in the threads. I have a set of Neal’s I used 3 times and started leaking I still need to rebuild them so I don't know how there held together.

Really???? Wow. No kiddin?? DANGIT!


Yankee honed the cutters too, a little.
I know we aint got no eddicashun in KY, but I thought honing was a "given".