Re: Over Drive Installed! 53 Clipper
Posted by HH56 On 2017/9/10 20:54:36
Congratulations on getting the OD in --- and to have it work with what sounds like minimal issues is an accomplishment.
I don't remember if you have power or manual brakes but on either system first check the level of the fluid. If it is low it is possible air has entered and the brakes need to be bled.
If power, those have no height adjustment. The pedal height is entirely dependent upon a spring inside the vacuum portion pushing the power piston to the rear of the canister and raising the pedal. Brakes should fully engage at less than an inch of travel. If you are saying the pedal on a power brake is going almost to the floor there are serious issues. Low fluid is the thing that might cause the pedal to go low and yet still have some brakes but why it would suddenly be low is a serious matter. Fluid being sucked into the vacuum side is one possibility but the car needs to be parked until the issue is resolved. Old BTVs that have sat and then been put into service without a complete going thru have this little quirk of stopping at one corner and rolling thru the next.
On a manual brake system a spring keeps the pedal at normal height but there is a threaded pedal free play adjustment which is at the end of the rod just before the master cylinder. The rod has a threaded on end portion which goes inside the master to push against the piston. If that is seriously out of adjustment the pedal could move quite a distance before the piston moves. The adjustment should allow for approx 1/4 to 1/2" of pedal travel before the piston starts to move. If that adjustment fixes the problem and there is no obvious damage or mis positioning of the rod I would wonder why the mechanic messed with it.
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I don't remember if you have power or manual brakes but on either system first check the level of the fluid. If it is low it is possible air has entered and the brakes need to be bled.
If power, those have no height adjustment. The pedal height is entirely dependent upon a spring inside the vacuum portion pushing the power piston to the rear of the canister and raising the pedal. Brakes should fully engage at less than an inch of travel. If you are saying the pedal on a power brake is going almost to the floor there are serious issues. Low fluid is the thing that might cause the pedal to go low and yet still have some brakes but why it would suddenly be low is a serious matter. Fluid being sucked into the vacuum side is one possibility but the car needs to be parked until the issue is resolved. Old BTVs that have sat and then been put into service without a complete going thru have this little quirk of stopping at one corner and rolling thru the next.
On a manual brake system a spring keeps the pedal at normal height but there is a threaded pedal free play adjustment which is at the end of the rod just before the master cylinder. The rod has a threaded on end portion which goes inside the master to push against the piston. If that is seriously out of adjustment the pedal could move quite a distance before the piston moves. The adjustment should allow for approx 1/4 to 1/2" of pedal travel before the piston starts to move. If that adjustment fixes the problem and there is no obvious damage or mis positioning of the rod I would wonder why the mechanic messed with it.
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