I would not be very worried about it, gears were pressed on like that for years before everyone started to heat them. I think most people had problems at higher RPM not what we are running.

In the 60's I pressed the gears on never had any come loose, I still don't use a screw or retainer or anything. and I turn 7000 RPM at times.

But I do use heat now just makes sense to me.


Turbo-6