No brakes. Help!

• Apr 5, 2016

• #1

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skag101

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My 63 Sport Fury is without brakes. It has disc on front from the previous owner. I had a caliper sticking so I replaced both calipers and hoses. This is when I ended up with no brakes, so I replaced the master cylinder, rear brakes and wheel cylinders because one of them was leaking. Nothing left to replace and I still have no brakes at all. Any ideas or suggestions?

Bill

 

• Apr 5, 2016

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furyus

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Did you bleed them? Is the bleeder valve at the top of the caliper?

 

• Apr 5, 2016

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Glenwood

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sounds like air in the lines. A vacuum pump works great if you are by yourself.

 

• Apr 5, 2016

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skag101

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Yep. Bled all four wheels. Valve is at the top.

 

• Apr 5, 2016

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Glenwood

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sorry for asking, but how did you bleed them? It can take a while to get the air out depending how you go about it.

I've also heard of new MCs having bad seals.

 

• Apr 5, 2016

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Trashdog67

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Did you bench bleed the M/C?

 

• Apr 12, 2016

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skag101

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Trashdog67 said:

Did you bench bleed the M/C?

Click to expand...

yes.

 

• Apr 20, 2016

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resq302

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I agree with the thought that you still have air in the system. When I was pressure bleeding out the completely dry system in my Dad's 69 GTX vert, it took forever to get all the air bled out. I thought I had the issue fixed and then the pedal was still low and would barely stop the car. I put the pressure bleeder on the car again and went through every bleeder starting with the furthest to the closest. I also filled a clear jar with some brake fluid and put a hose onto the bleeder with the other end into the fluid. While I would crack open the bleeder, I kept checking for bubbles coming out in the clear jar of brake fluid. Once the bubbles stopped, I let it go a little more and then closed it up and moved onto the next closest one to the master cylinder.

 

• Apr 22, 2016

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furyus

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I had an issue with no brakes after changing calipers. I'd you have the 73-76 A body discs, it is possible you got the 76 style calipers
They have a larger bore , and will not give you a pedal with a 15/16 bore MC. I ended up with a 1 1/32 bore MC , and got my pedal back. I don't remember the different bore sizes of the calipers.