| Re: NEED TIPS FOR BLEEDING ZF HYDRAULICS. |
Subject: Re: NEED TIPS FOR BLEEDING ZF HYDRAULICS. by Josh on 2010/6/23 23:31:35 If you have a mighty vac, you can do it yourself. I've done 25 or more ZF hydraulic systems in this manner and never had an issue: One hose on the mighty vac sucks, the other blows. Open the bleeder on the slave and attach the blowing hose to the bleeder. Stick the sucker end of the mighty vac in your brake/clutch fluid. Slowly pump the mighty vac. You'll fill the system through the bleeder screw from the bottom up. The air wants to go to the top, trying to bleed it out the bottom makes no sense, why GM designed it that way is beyond me. It would be almost impossible to force an air bubble out the bottom of the slave. If necessary, you can unbolt the slave and hold it in such a manner as to make the steel inlet tube the highest point. That way, as you pump fluid in the bleeder valve, all the air goes up and out the line. Have someone watch the master so you don't over fill it and dump fluid all over everything. There's no need to pump the clutch to move the master or anything, the system will fill properly with no movement of the master cylinder. Hopefully, that makes sense. If not, let me know and I'll try again. |
