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06-08-2024, 03:28 PM | #1 |
Registered User
Join Date: Mar 2011
Location: Penn Yan, NY
Posts: 60
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Brake Bleeding Anomaly on my 66
I installed a power disc brake kit on a 66 C-10 that I am building, the entire brake system is new, front to back, every piece. I have bled the brakes three different ways, vacuum, gravity, and even had the Warden do the old "pump and hold" . In each case the results are the same, good solid pedal with about 1 1/2" of travel until I start the motor, at which time the pedal goes nearly to the floor. I have triple checked the entire system and there are no leaks. I do have the proportioning shuttle locked in place as I didn't want it to move during my bleeding attempts. I cannot explain it, never had this happen before. Any ideas as to what would cause this? Thanks. -Steveoreno-
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06-08-2024, 03:42 PM | #2 |
Senior Member
Join Date: Dec 2009
Location: TN.
Posts: 7,847
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Re: Brake Bleeding Anomaly on my 66
Did you bench bleed the master cylinder?
Maybe the new Master cylinder is defective?
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06-08-2024, 07:32 PM | #3 |
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Join Date: Oct 2014
Location: Brandon, Manitoba, Canada
Posts: 960
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Re: Brake Bleeding Anomaly on my 66
Did you move the attachment point on the pedal arm down 1" from the stock location?
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06-08-2024, 09:10 PM | #4 |
Registered User
Join Date: Mar 2011
Location: Penn Yan, NY
Posts: 60
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Re: Brake Bleeding Anomaly on my 66
Yes to both. I'm thinking that it may be a defective master cylinder and as much as I hate the idea of replacing it I am prepared to go that route just to eliminate a variable.
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Yesterday, 05:43 PM | #5 |
Registered User
Join Date: Oct 2014
Location: Brandon, Manitoba, Canada
Posts: 960
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Re: Brake Bleeding Anomaly on my 66
https://youtu.be/dMB4l-Q4zsA?si=URM98ClnLY2sSGpP
The next time I do a bench bleed I'm going to try the syringe method. |
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