1963 brake problems
after rebuilding the front wheel cylinders installing new brake shoes and a restored master cylinder my brake pedal will not return
-
-
Re: 1963 brake problems
Dennis, Power Brake car?
-
Re: 1963 brake problems
not a power brake carComment
-
Re: 1963 brake problems
The non-P/B cars had a spring installed at the pedal. Usually, that spring is strong enough to return the pedal. Did that spring break? I can't think of anything that would hold the pedal down, unless it's jammed into the master cylinder and is bound. Did you change the rubber hoses in the front?
Comment
-
Re: 1963 brake problems
master cylinder was bench bled as was all four wheels beginning with the rt rear wheel as should be done . i also purchased a new master cylinder from napa with the same results.brake petal works fine without master cylinder installed . I have owned this car over 30 years with no problems with the brake petal.Comment
-
Re: 1963 brake problems
Disconnect the push rod at the brake pedal - then check the action of the pedal - with no hydraulic system attached to it. The pedal should have resistance (from the spring) when you push down on it - and it should come back up to its normal up position. If it doesn't depress smoothly or rebound quickly either the spring is broken or there is some interference up in the pedal area - you say you had the MC out - it may be that you installed the push rod incorrectly or there is something interfering with its function. Keep in mind that the two shoes in each drum have some pretty strong springs at the top - those springs pull the shoes back from the drum and when they do that they also apply inward pressure on rods that go into the wheel cylinders - and these push the plungers back in - pushing fluid back through the lines - that action is the mechanism that returns the plunger in the MC back into its retracted / rest position. And the pedal spring pulls the pedal back - so when there is no force on the pedal the entire system is ready to move fluid, expand the shoes and stop the car the next time you press on the pedal. Let us know what you find.EdComment
-
Comment
-
Re: 1963 brake problems
[QUOTE=Dennis Worthen (21911);930149]master cylinder was bench bled as was all four wheels beginning with the rt rear wheel as should be done . i also purchased a new master cylinder from napa with the same results.brake petal works fine without master cylinder installed . I have owned this car over 30 years with no problems with the brake petal.[/QU
So if the pedal comes back and forth without the Master cylinder , open ALL bleeders and gravity bleed the brakes system.Comment
-
Re: 1963 brake problems
I loosened the bolts on the master cylinder and the brake petal works just fine and the petal is solid.Im not sure if I need to rebleed the system. Do i need to adjust the clevis on the brake petal so it doesnt travel so far into the master cylinder?Comment
-
Comment
-
Re: 1963 brake problems
Rebleed the system then tighten the bolts from the master cylinder to the fire wall. Adjust the clevis if necessary. A small adjustment goes a long way.Comment
-
Re: 1963 brake problems
That doesn't sound right. If the MC is properly secured the brake pedal mechanism binds and does not function - if it is loose the brake pedal functions normally...... REALLY! Does that sound right to anyone? Something is misaligned or manufactured incorrectly - defective.EdComment
-
Re: 1963 brake problems
clevis was mounted in the wrong hole on the brake petal.. guess who did thatComment
Comment