2003 Corsa.....wipers not working.

[Matchless]

"I'm tempted to persuade the linkage to move with a large impacting implement"

Not a good move, the wiper spindles are steel, the housing they are supposed to turn in are made of the very finest monkey metal. Heat and gentle persuasion usually works best.
Once dismantled and de-rusted you can try to fit new O rings but in my experience there was no where left for them to locate...lots of grease was applied and was still working 5 years later, out lasted terminal corrosion to the bulkhead.

[Sir Tigger KC]

You could buy Lady Opti a decent car you tight bugger!   

[tigers_gonads]

"I'm tempted to persuade the linkage to move with a large impacting implement"

Not a good move, the wiper spindles are steel, the housing they are supposed to turn in are made of the very finest monkey metal. Heat and gentle persuasion usually works best.
Once dismantled and de-rusted you can try to fit new O rings but in my experience there was no where left for them to locate...lots of grease was applied and was still working 5 years later, out lasted terminal corrosion to the bulkhead.

Eh yes