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07-24-2021, 10:33 AM | #1 |
Senior Member
Join Date: Jan 2019
Location: Chicago
Posts: 732
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Brake Pressure Bleeding
On my stock '40, when I pressure bleed the brakes I get one good long squirt out of the bleeder, then flow stops. Air pressure in the MC reservoir at +/- 9 psi goes down only a hair. If I pump the pedal once, then can get one more squirt.
So what am I doing wrong? With air pressure in the reservoir, pedal fully retracted, why does it not pressurize the lines and produce a continuous flow? (I believe the MC plunger does fully retract, brakes always fully release) |
07-24-2021, 10:42 AM | #2 |
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Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,436
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Re: Brake Pressure Bleeding
Check the feed and equalizer ports out in the master cylinder for blockage.
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07-24-2021, 09:11 PM | #3 |
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Join Date: Sep 2016
Location: sydney australia
Posts: 1,034
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Re: Brake Pressure Bleeding
ether a blocked port or over adjusted master pushrod [no free play] if you have free play and the port is clear a rebuild may be required as the internal spring may be damaged or weak /the piston maybe getting caught on a ridge and not fully returning
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07-24-2021, 11:20 PM | #4 |
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Location: Chicago
Posts: 732
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Re: Brake Pressure Bleeding
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