I need to know what to expect when bench bleeding clutch or brake cylinders. Obviously this could take a lot of space, but hopefully I can narrow it down:
some details: The car is an '87 Porsche 944, and I have all new clutch/brake cylinders (FTE brand) to bench bleed. If you know about this car, then it had an original Girling brake master cylinder with Girling booster. I read the NAPA instruction sheet (see below), Haynes, as well as many other things.
I can see how the cylinder should be held in a vise and positioned to let bubbles rise to the top and out the holes, but I am particularly wondering about what happens when the rod starts to be pushed. I have read that the rod should not be pushed in all the way. I also imagine (from testing my old one) that the fluid gets pushed out - with a lot of force - every hole on the cylinder. I see that NAPA makes some fittings and such to help bench bleeding, and it appears that there should be some sort of flow-through collection bin to catch this fluid. I guess when fluid flows without bubbles, the unit is transferred to the vehicle in a condition that prevents air from getting back in - or perhaps it is more forgiving?
link to NAPA instructions: