Thanks for all the replies on this.  For the archives, the two jets were
getting weaker and weaker, then the switch (on the steering column) started
smoking.

In the spirit of "try the easy answer first", I removed the steering wheel
and wiper switch.  I held the brass contacts apart and used 600 grit
sandpaper on all four surfaces (two for rear, two for front).  Put it all
back together, and the jets now shoot over the top of the westy.  So after
readjusting them, they're very happy....

tx,
bmc  :)
"Faith will move mountains, but you'd better bring a shovel...."