Quote:
Originally Posted by ijasond
the purpose of bench bleeding is to ensure that there are no air pockets trapped in the master cylinder. There's no reason you can't "bench" bleed the system after it's installed in the car, just make sure that the cylinder is level when you do it. If it's not, air could get trapped in the corners of the ports, only to be fed into the system later. Level level level, it's crucial in a new system.
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You're absolutely correct. I'm waaay to lazy to bench bleed my M/C, so I usually just crack the flare nuts on the lines into the M/C and let the fluid dribble out of there first (with appropriate rags in place to catch the fluid).
Of course, that was before I got my pneumatically operated vacuum brake bleeder. This is perhaps the BEST tool I've ever purchased. It uses shop air (run through a venturi) to create a vacuum for bleeding the brakes - sort of a MityVac on steroids. Plus, there's no pumping, since that always seemed to allow air back into the system between pumps when the tube doesn't seal completely on the bleeder screw.
Oh, the best part is the brand name of the bleeder - Vacula (I'm not making this up).
http://www.vacula.com/
These things list for over $150, but I found mine at a swap meet for $15.