OK I've been driving my car for a while now and although the brakes work good, I still think the pedal go's to low for my taste... Here's the history: I swapped to manual disc front and rebuilt rear drums... The M/C is new disc drum, Has the original prop valve and all new rubber lines... The pedal is in a good height when the brakes are not in use... I read in in another thread about using a bigger boar M/C is there anything else I should do ? They have been bleed several times and stop straight as an arrow... Thanks....
I'm sure you did this, but you adjusted up the rear brakes so that the shoes slightly dragged on the drum?
The drums are not new but looked very good, and I used a scotch brite pad and cleaned them up really well....
Ok if you haven't checked the drums for diameter you may find that they have been turned several times and are out of specs I had this problem on a Chevy truck and even with in proper adjustment the shoes were new but adjuster turned out so far causing shows to be off center and wheel cylinder traveling to far to compensate for it causeing pedal to be low like an out of adjustment
Mine with that setup was lower tha nI thought it should be but it never failed to work well and never touched the floor. It may be the nature of the beast.
I have a parts car that had a complete brake job before they gave up on the project, it's four wheel drum and has an awesome feel to the brake pedal and is by far firmer than my mav... only go's down about an inch or so...
would it be different on a drum brake car ? I have a parts car with a recent brake job that has an awesome feel on the pedal only go's down about an inch....
In that case....you may have a problem/issue. Rubber hose bulging or something. Really hard to say without driving it myself.
The only real difference in feel should be maybe a slightly lower pedal due to the caliper piston retracting slightly after the brakes are released. Rotor warpage or runout or loose wheel bearings will make this effect much worse. Also of note is the arc of the shoes vs the drum. If the drums are slightly oversized compared to what the shoes are arced for, the shoe will flex somewhat until pushed hard enough to fully seat against the drum and reduce the braking effect due to the smaller patch of material doing the braking. If you just can't find anything else, you could install a plug in one circuit of the master cylinder at a time, bleed it then push the pedal and see if it gets better with one circuit or another. That would at least give you an idea where the problem might be.
I think so too. You cannot compare pedal feel between a manual brake setup and a modern power setup. Two completely different animals. The type of brake linings also comes into play here too, the cheap organic linings will give a softer pedal feel than those with a good semi-metalic lining
