Sorry to be late with this, but Ken, I do bleed my own
van's coolant system and when I get ALL of the air out of
the system, I do NOT get a variation in the level of
coolant (in the reservoir) with engine RPMs.  The reservoir
is ALWAYS full.  so I'm a bit mystified by your
comments.  Malcolm

On 15 Dec 2001, at 8:43, Kenneth D Lewis wrote:

>  If you have ever bled the system you should have noticed
> how the coolant level in the reservoir falls with higher
> RPMs and overflows at idle.