Hi, I am trying to rebuild the water pump on my 2QM15. This is probably a general question/issue that applies to any time one tries to put bearings on, but should I have such a hard time getting them on the pump shaft? Should I take them to a machine shop to have them pressed on?

Also, I'm not sure which rings are which in the rebuild kit. I can post photos/screenshots of the service manual if someone knows which are which: one goes between the bearings, one goes against the oil seal, and and one is a washer for the pulley.

Also, not sure how one gets the oil seal into the housings; there is a flange inside that keeps the bearings in place, but it's smaller than the oil seal. The one that's in there already seems fine.

Thanks so much, sorry if this is really vague.