On Thu, 4 Mar 2004, Daniel L. Katz wrote:

> in fact, wouldn't it always be prudent to subsequently crack that bleeder
> screw to make sure all air was purged - something like checking for leaks
> and proper oil level after an oil change?

I do this sometimes.  Usually the first drive after I bleed the system a
tiny bit of air comes out.  I've never seen any air come out after that.
Not even the time I accidentally drove 30 miles with the expansion tank
cap loose. ;)

David Brodbeck, N8SRE
'82 Volkswagen Diesel Westfalia
'86 Volvo 240DL wagon