Brake pedal height

[Print Dad 58]

Hello all,,, once again I am looking for thoughts, opinions, ideas etc,

so here is the car specs… our 70 Mach 1 351c drum brakes all around. Man steering

today I picked up our car after having a new master cylinder installed by a very reputable shop.

the brakes are amazing but the pedal is a little too high for me.

I would say the pedal is about and inch and a half higher than what is was before.

 

I purchased the master with a new rod no adjustment onthe rod.

 

so whAt should I do… get used to new pedal height or is there a way to adjust it?
I don’t think there is an adjustment unless it was on the pedal to mater rod which there isn’t.

I appreciate you thoughts and opinions

 

thanks.   Sam.  

[Mach1 Driver 588]

From what I've read, swapping brake parts around can lead to just this kind of incompatibility problem. Many knowledgeable people prefer to only rebuild the original master cylinder- Booster Dewey (now Booster Steve) being one of the two shops I've heard of that can do so. There is so much misinformation about what replacement booster will fit and operate properly, that you really should watch the two videos that follow. Perhaps you can get the original back, or if not maybe you can purchase one that has already been rebuilt. 

 

[Print Dad 58]

Mach1Driver 

Thanks for the videos - - I should have been more clear on my original post

This car has no booster - just manual drum brakes all around.

 

Thanks - Sam

[aslanefe 342]

What is the bore size on the old master cylinder and what is the bore size of the master that is installed currently?

[Print Dad 58]

I think both are 1MM.  

I had installed the last master about 10 years ago - and I THINK I got the same one

 

Thanks - Sam

[aslanefe 342]

There is a lot of "I thinks" in your answer. Usually, if master cylinder is the only thing replaced and it is installed/adjusted correct, higher pedal means the bore of the master cylinder is increased. 

[Print Dad 58]

Hello,

I will look up my old records to check the size of the previous master.

I have had this car 46 years and over the years have replaced a lot items

thanks sam

 

[aslanefe 342]

I hear you, it is not easy to remember/keep track of everything when you had the car a long time. As far as I know, there is no adjustment at the brake pedal. May be the push rod of the old master was a little shorter which would have put the pedal lower.

[RPM 1,232]

Those push rods come in many lengths. I had several, but none the length I wanted. So I made an adjustable push rod, and put it at the location I wanted. 

Some master cylinders clip onto the push rod so it won't fall out, some don't. While I've never experienced it, the ww web says an unsecured push rod can fall out of the brake pedal is pulled towards the driver fully. Mine won't. But checking for this is not a bad idea. 

 

[Print Dad 58]

Quote

 

Seems to me that the push rod is not seated correct or it is the wrong master and the rod is too long.

as a point of info..l the brake pedal is now about 2 inches higher than the clutch pedal

this is unacceptable..gonna talk to the shop on Monday.   Maybe I need a different master and rod