Bench Bleeding Master Cylinder

[Dustedu2]

This might sound stupid but, can I bench bleed my MC while it's in the car.
I installed it and after getting no pedal, I remebered reading something about bench bleeding and here I am. Can I Just disconnect the lines and have someone pump for me while I hold the tubes????

 

[pozest]

Sure can, do it nice and slow til all the bubbles are gone. Good luck!

 

[Dustedu2]

I thought the principal was the same, just not in a vise and 2 people required....Thanks

 

[BlackBrick]

I did mine on the car - the master came with this plastic screw in nipples, 2 plastic hoses and a clip to hold the lines under the fluid. I filled it up with fluid, pumped the pedal 3 times, and then checked the fluid for bubbles. Took about 20 minutes of nice slow pedal movement to ensure all the air was out. I used vice grips on the plastic lines and popped the mc cover on.

 

[Wheel Chock]

Just make sure that the person operating the pedal understands nice slow gradual depression and release, not the sort of pumping motion that you would use while bleeding the system, otherwise you'l have fluid all over you and the car.

 

[Dustedu2]

Thanks all, Got it done.