Greetings all, after my recent MOT, the p/s is a lot stiffer, which I put down to the tester palming the wheel lock to lock whilst getting the car in and out of the tight test bay. It's been stiff on a handful of occasions in the past but it's permanent now.

I have a spare pump kindly provided by charlie. I don't know what car this came off but is there any way to check it before fitting this? The pulley moves freely enough and there's no noises or wobble.

Thanks.