On Sat, 6 Sep 2003 12:52:52 +0000 (UTC), Woodspoiler wrote:

Blockages can't do the vac motor much good either - it chucks out
tons of heat when working.

True enough but when blocked it's not working so hard, if you notice
the RPM will increase when blocked. Admitedly it could probably do
with some cooling air flow but prehaps not as much as you think.

--
Cheers
Dave. pam is missing e-mail