Belt tensioner

I need a tensioner for the belt that runs the water pump so I picked
up these pieces from Mid-Canada Bearing. The blue piece uses an
elastomer centre to allow the arm to move and put constant tension
on a belt or chain.



The hole in the middle of the pulley is too big so I took a brass
bushing, stuck it on a drill and spun it against a bench grinder-
poor man's lathe!

Here's the pulley with bushing

Installed on the car. There is some movement forward and back
of the tensioner so I may have to modify this later.