On Tuesday 06 January 2004 10:10 pm, David Beierl wrote:
> I think that would almost have to be determined by experiment over a range
> of conditions, it's related to too many different things.  If it's on the
> input side of the radiator, for example (I think it is), a clogged radiator
> would cause less flow through the system but more out the bleed opening.

On my diesel, at least, it's on the output side.  Gas engines may have
different hose routings, but on my diesel coolant enters the rad through the
bottom hose, makes a pass through the bottom half of the radiator, turns
around and makes a pass through the top half, then exits via the upper hose.
This is actually a nice bit of engineering, since it means that the flow as
well as buoyancy pushes bubbles towards the bleeder.