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Old 10-24-2020, 11:41 AM   #2
Kube
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Join Date: May 2010
Location: Wisconsin, USA
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Default Re: 1940 Brake Bleeding

Quote:
Originally Posted by mike42 View Post
Got everything reassembled and I have filled the new master about 20 times and still no hard pedal. Using speed bleeders. Does it normally take this long to get a firm pedal ? Am I doing something wrong ?

I only replaced the front cylinders and shoes.

Thx....Mike
Not certain if you are doing anything wrong or not.

Did you have a good pedal prior to replacing the shoes and cylinders? If so, we can pretty much eliminate a defective master.

You must start at the right - rear cylinder. Bleed that and move to the left - rear. Then the right - front and finally the left - front.

Be 100% certain the master NEVER runs low. If it does, you will instantly introduce air in to the system.

Speed bleeders? If the method I'd just described does not work, I'd suggest you remove the speed bleeders and get a helper to manipulate the brake pedal.

Pump the pedal at a "normal" pace about five or six times and HOLD it down until you have opened and subsequently closed the bleeder. Check fluid in master and top off as necessary.
Repeat.
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