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Old 07-24-2021, 10:33 AM   #1
JayChicago
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Default 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)
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Old 07-24-2021, 10:42 AM   #2
rotorwrench
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Default Re: Brake Pressure Bleeding

Check the feed and equalizer ports out in the master cylinder for blockage.
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Old 07-24-2021, 09:11 PM   #3
aussie merc
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Default 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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Old 07-24-2021, 11:20 PM   #4
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Default Re: Brake Pressure Bleeding

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Thanks guys. I will check free play and the ports.
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