If your tapes tend to consistently rub on either the inner edge of the reel, or on the outer edge, you should adjust the reel tables.
Get the service manual from Hifiengine, and look there for how to adjust.
On most machines, it's pretty straight forward. The reel tables are the assemblies that fit on the reel motor shaft on one side(rear), and on the other side(front), where you mount the reels.
There are often holes in the chassis to see the set screws and insert a driver to loosen and tighten them. Rotate the reel tables to move the set screw(s) into position.
There will be 1 or 2 set screws on the rear of the table, and they can be loosened. It's a simple matter of moving the tables out or in, to result in centering of the tape between the flanges as they turn. It might take 2-3 attempts to get thing where you want them to be.(tape centered). Then tighten firmly and you are done.
Of course, if you have warped reels, where the reel sides wander back and forth-there is no solution other than spooling the tape onto a good reel.