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1967 250S: Replaced master cylinder new slave cylendar...clutch petal.

Customer Question
<p>Proper way to bleed a...
<p>Proper way to bleed a master and slave clutch cylindar on 1967 250S 4 speed. Replaced master cylinder new slave cylendar. We have no clutch petal. It just flops.</p><p>We installed a Beck/Arnley clutch master cylinder. This one did not have a bleed valve like to old one.</p>
Submitted: 8 years ago.Category: Mercedes
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Answered in 29 minutes by:
6/23/2010
Mercedes Mechanic: Marty, Mercedes Technician replied 8 years ago
Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 55,289
Experience: Bosch Certified Master Tech. Over 35 years experience.
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eurotec :

Hi, the simplest way to bleed it might be to crack open the bleeder on the slave and connect a hose from the bleeder and drop it onto a clear bottle of brake fluid and just pump the pedal by hand until you get little or no air bubbles then close the bleeder. Once you get a pedal you can hold it down and quickly crack open and then close the bleeder on the slave to expel any remaining air.

eurotec :

Make sure the brake fluid remains full at all times.

Customer:

we did this

eurotec :

What happened? Did you get air bubbles in the fluid when you pumped it?

eurotec :

Another method is to fill a clean oil can full of brake fluid and fill the system backwards by pumping the fluid in from below.

eurotec :

Are you sure you have clearance at the clutch pedal so that your cylinder is coming all the way back when you release the pedal?

Customer:

yes we believe so

eurotec :

Ok, you need to make sure of that or the master won't draw and fluid.

eurotec :

If you open the bleeder at the slave will it gravity bleed?

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Mercedes Mechanic: Marty, Mercedes Technician replied 8 years ago

It looks like your replies were not coming through in the chat. Try posting them here if you need more help.



Edited by eurotec on 6/23/2010 at 10:03 AM EST
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