OK, here's a picture of a random 1.9 water pump opened up. The arrow shows which way this impeller should rotate.

You could get a Haynes manual for one of those models. Make sure it includes the diesel variants though.
You shouldn't re-use them on the same side, but if you swap the hub nuts over to the other side, you can [E D I T]usually[/E D I T] re-use them as the peening should be in a different place.NathanW wrote: ↑27 Sep 2020, 19:00jamesakers wrote: ↑27 Sep 2020, 18:23 Get two new front hub nuts as they shouldn't be reused. Part number 251407671.
Thank you, will do