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'55 F750 brake bleed procedure

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Old Apr 22, 2020 | 10:13 PM
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'55 F750 brake bleed procedure

So, what is the correct procedure to bleed the brakes in my old beast? I had the booster rebuilt and just finished installing it. There are 2 bleed screws on the booster - one on top and one down near the out line. Then I have dual cylinders on the rear drums - one on top and one on the bottom of each wheel. What order do I do those? The line goes to the top one first then continues to the bottom.
Thanks for help!
 
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Old Apr 22, 2020 | 11:42 PM
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Do you have the Bendix Hydra-Vac booster like this? Start with the one closest to the diaphragm (input), then the one on the end next to the output. Next, right rear lower, then upper, then left rear lower, then upper. Next, right front lower then upper, then left front lower, then upper.

Note: Both booster bleed screws are supposed to be facing up.



 
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Old Apr 23, 2020 | 03:24 AM
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JimG1098
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From: Eastern shore,Salisbur,MD
Not as good a picture as Mixer Man, but here is a pic of mine. 54 F-750, Q model, I had it rebuilt.



 
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Old Apr 23, 2020 | 04:41 AM
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Originally Posted by Mixer man
Do you have the Bendix Hydra-Vac booster like this? Start with the one closest to the diaphragm (input), then the one on the end next to the output. Next, right rear lower, then upper, then left rear lower, then upper. Next, right front lower then upper, then left front lower, then upper.

Note: Both booster bleed screws are supposed to be facing up.



Thanks! Yes, my booster looks pretty much like that - vacuum ports look a little different but the rest looks the same. Bleed screws in the same spot, both facing up when mounted.
 
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Old Apr 23, 2020 | 04:43 AM
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Originally Posted by JimG1098
Not as good a picture as Mixer Man, but here is a pic of mine. 54 F-750, Q model, I had it rebuilt.


Mine looks way different than that but I guess they all do the same job.
 
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Old Apr 23, 2020 | 11:33 AM
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From: Bothell & Silverdale, WA
Several excellent brake booster videos on YouTube.

 
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Old Apr 23, 2020 | 11:46 AM
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Mixer man
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From: Bothell & Silverdale, WA
Originally Posted by Snowturtle
................... but I guess they all do the same job.
Yes and no. They serve the same purpose but the capacities vary. A F-6 booster is different than a FT-800 booster.
 
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