I recently purchased a 1966 Plymouth Sport fury and the previous owner actually mounted a screen door spring to the brake pedal to pull the pedal upwards. Apparently without the spring, the pedal sags down just enough to turn the brake lights on. Of course after time the battery is dead.Has anyone experienced anything like this or know of a better solution?ThanksShawn
thats a normal type of fix...i have installed that on a lot of cars and trucks... there are a few things you can fix to help cure the situationyou might want to replace the stop light switch .. it might be hanging up... they go bad after decades of use.. replace the master cylinder with a new one.. the spring inside is probably a little tired and cannot push back as hard as it used to.. or the replacement springs in the master have gotten weaker because of unknown spring tension specs from original designs not being included ...replace the power brake booster ... one might want to talk to a power brake booster rebuilder.. i have one about 10 miles from my place.. but i rarely get that way.. i will quiz him next time i am down there..dismantle the brake and clutch pedals from their linkage and pivot shafts... inspect clean.. lube.. replace the bushings.. some are nylon/plastic.. some are sintered brass..if these get tight.. or worn it may not properly allow the pedal to come all the way back up to depress the brake light switch properly..
Unfortunatelty, the bracket that holds the brake light switch can easily be bent, and cause the switch to become mis-adjusted. You can try bending it back to where it belongs (where it works correctly). But it probably will go back to not working fairly soon. I solved the problem by adding some small gussets to the bracket where it is prone to bend. I had a friend weld them in, but I think if you designed it right you could rivet something on to it. Wish I had some photos. Just look at the weakl points and add some beef to the bracket.