You can do it on the ground provided you can reach the fittings with a wrench.
Get a buddy in the car, and have him pump the pedal until its as firm as it will get, then have him hold it. While he's pumping, you're under the car. Once he gives you the OK that he's holding the pedal down, crack the fitting, and watch the fluid come out. As it trickles down and slows, close the fitting right before the fluid stops (he's got the pedal on the floor and the last bit of fluid is leaving.)
Have him repeat (pump and hold) and crack the fitting again and close it at the same time. Do this until you don't see any more air exiting with the fluid.
Check your resevoir, add more fluid as needed, and move to the other side. Repeat the process. Check the fluid, other wheels, checking the fluid between each. You can just leave the top off the MC while you're bleeding so you can just glance at it to see if its still got fluid. I've never done bleeding by length of the line first, but it certainly won't hurt anything.
It is important to pump the pedal because if you just push it once you won't build up much pressure if you're just compressing air in the lines. Pumping it ensures that you've got decent line pressure and that the air will be forced out when you bleed each cylinder or caliper.
<font size=-1>[ This Message was edited by: thekingofazle on 4/10/06 1:20pm ]</font>
