Originally Posted by Whopity
Dude "Con Rods in the Vacumn pump as described above!
OK - I'll show my ignorance. I was under the impression that Vacuum Pumps were like this inside:
Where do con-rods come into it? I always thought they connected cranks to pistons - but there are no pistons here.
OC619
P.S. Yes I do realise this is a rather poorly example