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11/21/2023 4:14 PM  #1


Brakes not working very well

Hey guys,

Im helping my son get his 68 Mustang on the road.  He has Granada brakes on the front and ford explorer disc brakes on the rear.   We figured out he must of had some bad front Granada Calipers.  We got another set and now the rotor does spin freely and seems to work how it should.  Seems like the first hit of the brake pedal and it goes down to far.  The second and third hit and pedal is more where it should be at.   I think there might still be air in the system.  We do a have a disc/disc 2000 mustang master cylinder.   Another thing I was going to check is the rod going to the master cylinder to make sure its long enough and making contact right away.   Any other things to be looking for?  

Thanks
Steve69

 

11/21/2023 6:10 PM  #2


Re: Brakes not working very well

Make sure the calipers are on the correct side - i.e. the bleed port on top. Having to pump the pedal seems to me that  there is air in the system. Did you properly bench bleed the master cylinder before installation? Do the brake bleed procedure again.  Right rear, left rear, front right, front left.
I have Granada (Monarch) front brakes on my 68 and 2003 V6 Mustang master cylinder with 1996 V6 Mustang rear disc brakes. I also have a 1995 Mustang GT brake distribution valve. The brake booster is a stock 67-68 Bendix booster. What booster do you have installed?
 


68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
 

11/21/2023 7:16 PM  #3


Re: Brakes not working very well

Do you have the correct brake pedal? I made that mistake way back when.
 


67 Coupe, 5.0 EEC IV Fuel injected. T5, 3:70 rear
 

11/21/2023 7:57 PM  #4


Re: Brakes not working very well

What vacuum booster is he using?

 

11/21/2023 10:38 PM  #5


Re: Brakes not working very well

Ron68 wrote:

Make sure the calipers are on the correct side - i.e. the bleed port on top. Having to pump the pedal seems to me that  there is air in the system. Did you properly bench bleed the master cylinder before installation? Do the brake bleed procedure again.  Right rear, left rear, front right, front left.
I have Granada (Monarch) front brakes on my 68 and 2003 V6 Mustang master cylinder with 1996 V6 Mustang rear disc brakes. I also have a 1995 Mustang GT brake distribution valve. The brake booster is a stock 67-68 Bendix booster. What booster do you have installed?
 

 
ACTUALLY… If you put the bleeders on the top, pointing up, when installing Granada brakes, you will never get the air out of them. The bleeders must point to the rear.  If they point up, they are on the wrong side of the car.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

11/22/2023 12:17 AM  #6


Re: Brakes not working very well

Doh! Thanks MS for clearing that up. Your picture is correct of course. I was trying to say that there is a right way and a wrong way to mount the calipers, and I had a brain fart and got it backwards.

And thanks for that ACTUALLY.........:-)

Last edited by Ron68 (11/22/2023 12:18 AM)


68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
 

11/27/2023 11:03 AM  #7


Re: Brakes not working very well

Thanks Guys, 

Ill check this out and make sure the calipers are the right direction.  Try bleeding again.  We have a MS booster and pedal. Along with a MS cable clutch. 

     Thread Starter
 

11/27/2023 3:13 PM  #8


Re: Brakes not working very well

Steve69 wrote:

Thanks Guys, 

Ill check this out and make sure the calipers are the right direction.  Try bleeding again.  We have a MS booster and pedal. Along with a MS cable clutch. 

 
You sponsored by him? I didn't see any decals on your car.


Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
 

11/27/2023 3:49 PM  #9


Re: Brakes not working very well

Wow I don’t recall that about those calipers and I had them on my old 65 fastback.  I either got lucky or knew what I was doing and just forgot about it.

 

11/28/2023 2:52 PM  #10


Re: Brakes not working very well

RTM wrote:

Wow I don’t recall that about those calipers and I had them on my old 65 fastback.  I either got lucky or knew what I was doing and just forgot about it.

Only those of us who have screwed it up and put them on the wrong side are aware of the problem it creates.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

11/28/2023 5:22 PM  #11


Re: Brakes not working very well

Here, a picture is definitely worth a thousand words.


1968 T-code Coupe with a 302.  Nice car, no show stopper for sure, but I like it.
 

11/29/2023 3:00 PM  #12


Re: Brakes not working very well

Rufus68 wrote:

Here, a picture is definitely worth a thousand words.

 
See post #5 above.


Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
 

Board footera


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