Rear wiper issue

[Tetracat]

Hi. Looking for advice on fixing the rear wiper situation I have. The original had broken, so I bought a cheap replacement. However the metal ring is completely stuck on the motor thread pole thing. See pic. I can't get a new wiper on. Any advice? Thanks (MOT next week!!)

[Maarten]

Use a dremel to remove the nut.
Make a cut, be careful not to destroy the washernozzle

[RUM4MO]

The washer nozzle should just pull off/out allowing you to cover that area with sticky tape to protect it while you work on getting that alloy part up/off the wiper motor tapered spindle.

Also scrub the grooved/splined section with something - an old tooth brush would work, then apply some grease sort of stuff to hold back the next wiper arm seizing on.

One thing not to do is, to use a puller to ease that alloy part up and off, doing that will certainly start to destroy the hollow tubes in the drive shaft for the wiper, the washer pipe/tube resides inside the the motor drive tube but is fixed so that it does not rotate with the wiper arm.

I have needed to replace one of these washer tube and shafts in the past by buying a repair kit - so using a puller to remove the intact wiper arm was okay for me as the washer tube had started to rotate with the arm, so everything required replacing anyway.

[Maarten]

Sometimes they won't budge.
My old 9N3 2008 removed without issue,
My wife's old 9N3 2007 I had to pull out the old dremel.

[Tetracat]

Thanks everyone, got it sorted.

Unfortunately the car failed it's MOT which isn't great