Thank you Retroman.
I knew I would need that puller. I'll see if I can borow one quicker than it would arrive after the order.
Was more concerned how to take that base cover off without causing any damage to washer jet. If it's just simple pull off job, I'll give it a go.
Want to shorten the spring. Both ends are U shaped but one have longer arm. Thought to make the U at that end but closer to the spring, if that makes sence.
What I need to achive here is hreater pressure of the wiper on the glass.
At the moment, this is what my wiper being doing for the past year, or so
It is not wiping the glass in the middle since I bought it.
It is correct size and all that but doesn't do the job as it should.