leaking fr brake mastercylinder

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stevemack

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deferiet ny
i bought a king motor front brake setup and my mastercylinder leaks around the pushrod. and i noticed the pressure from the brakes will bleed off im assuming its because its bleeding fluid back through the mstrcyl is this common
 
mine don't leak, only time i have seen them leak was either the tubing was not pushed in all the way into the fittings which i would suggest you double check that,they should go in about 1/4-3/16" inch into the push lock fittings,you could be sucking in air,
as for the master leaking i would double check it make sure the seals are seated properly under plunger , you have to move the boot off to see the plunger set up,
also keep in mind while you where bleeding the system the master has to be bled also, and if you did that,you could be getting residual from the spilling of the oils
 
Yup, these things are bad about leaks. When I received mine the seals were completely wrong, so I had to go to lowes to pick up new seals. Since then no real problems other then the tubing coming off the calipers a few times. BTW make sure when your bleeding that the shaft is completely out and the servo is in the neutral position. Curious to see pics of how you guys have routed your brake lines,,, post some pics
 
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