1969 Z28 Camaro master cylinder

[wisemanz28]

I have my orginal master cylinder thats off my 1969 camaro Z28. What is the proper procedure for bench bleeding this master cylinder with bleeder screws?

[NoYenko]

The way I bench bleed the master is with 2 old cut off brake lines with hoses attached going back into a full master reservoir. You can see the air pumped out of the hoses as you depress the piston several times. Then you mount the master on the car and flush & bleed the system go back and open the master bleeder screws for any residual air.  George

[JohnZ]

Here's a photo of the bench-bleed setup I use on my '67 Corvette master cylinder. Forget the bleeders on the master cylinder - just use the setup as shown and stroke the piston until the fluid runs free of air bubbles.

[69Z28-RS]

Nice setup JohnZ!   

Where does one find those neat little hose adapters?   or did you have to make them yourself? 

[bertfam]

UNIVERSAL BLEEDER

Ed

[Stingr69]

I believe the bleeder screws on the original master cylinders were only used for production line purposes and never used in service.

-Mark.

[JohnZ]

I believe the bleeder screws on the original master cylinders were only used for production line purposes and never used in service.

-Mark.

We didn't use them in production, and we didn't use the bleeders at the calipers and wheel cylinders either; we evacuated and filled the brake system through the little compensating port in the bottom of the master cylinder reservoir. 

[Stingr69]

I believe the bleeder screws on the original master cylinders were only used for production line purposes and never used in service.

-Mark.

We didn't use them in production, and we didn't use the bleeders at the calipers and wheel cylinders either; we evacuated and filled the brake system through the little compensating port in the bottom of the master cylinder reservoir. 

I believe the bleeder screws on the original master cylinders were only used for production line purposes and never used in service.

-Mark.

We didn't use them in production, and we didn't use the bleeders at the calipers and wheel cylinders either; we evacuated and filled the brake system through the little compensating port in the bottom of the master cylinder reservoir. 

Thanks for the correction John.  I am sure you are right.