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 Post Posted: Sun Jan 02, 2011 2:33 pm 
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While i had my car on the lift,i notice that my front wheel are tight,hard to turn,when i was changing the gears in my my 9 inch,i went ahead and changed the rear brakes and bleed,and i did notice it was hard to push ,anyway,i can crack the line at the caliper and the wheel will release,i do have a 2 lb residual valve up front,could this valve be bad?i have bradied brake lines that are only 3 years old,was told the willwood are famouse for this and i should install new o-rings in the pistons ,any ideas,going testing next weekend and need to fix them,steve [-(


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 Post Posted: Sun Jan 02, 2011 4:33 pm 
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If BOTH front wheels are hard to turn then the valve might be a problem although with those valves there will always be some brake tension on the fronts. 2 psig doesn't sound like much but when you multiply that times the area of the pistons it likely winds up being more than 2 pounds at the rotor.

I've got those on my Studebaker because the master cylinder is way below the calipers but never had what I would call a problem with them and they were installed on the car when it was built way back in 1991.

FYI, my Camaro has Wilwood brakes front, rear and inbetween (MC) with SS braided lines front and rear and I haven't had any problems at all with them that I know of in the 5 years I've had the car. In fact, I've never even replaced the brake pads yet? Of course I'm not stopping 3250 lbs at a gazillion MPH either though. =; There aren't any residual valves on that car.

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 Post Posted: Sun Jan 02, 2011 4:44 pm 
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shicks wrote:
While i had my car on the lift,i notice that my front wheel are tight,hard to turn,when i was changing the gears in my my 9 inch,i went ahead and changed the rear brakes and bleed,and i did notice it was hard to push ,anyway,i can crack the line at the caliper and the wheel will release,i do have a 2 lb residual valve up front,could this valve be bad?i have bradied brake lines that are only 3 years old,was told the willwood are famouse for this and i should install new o-rings in the pistons ,any ideas,going testing next weekend and need to fix them,steve [-(


On several cars over the years I've had to take the calipers apart and clean up the pistons & cylinders and sometimes replace the o-ring or seal. They get gunked up and do not release all the way causing them to drag a little. It can cause some inconsistency when bracket racing too when they don't release the same every time. After cleaning and replacing the seals you might notice the pedal is a little softer on the first press each pass than before. When the pressure is applied it kind of rolls the seal over a little and the seals will actually pull them back. When they are clean and new they seem to retract a little more than when they are old and grimey.

Rick


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 Post Posted: Sun Jan 02, 2011 6:26 pm 
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well after checking alittle more,i decided to pull back on the brake pedal, i felt it pull out,wheels turn,so i kept pumping and checking,im wondering if the master cylinder is going bad,just a freak 1 time deal, or mybe just got a littl rust enough ti hold it back,havent ran it in a few months..will c...


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 Post Posted: Sun Feb 13, 2011 9:37 am 
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When's the last time you changed your brake fluid? or flush the whole system? just thinking...

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