Balancing question!

[FC Zach]

Originally Posted by t_g_farrell

Also if your mix/matching some rotating assembly parts you may need it
rebalanced as well.

So true, cause no matter how sure you are, shit does happen. My first rebuild I did back in 2003/04 I was almost positive I was using the correct counter weights, I was wrong (i had a S5 front weight). Throughout the years of driving the piss out of it and going to unheard of RPMs eventually lead to this disaster.

As you can see here the bearing toasted, eventually causing the rotor to smack the irons from excess play, not one part or this motor was reusable.


Because of this I made sure I had my new motor balanced and even though I did have matching weights and rotors there was a noticeable amount of material removed from each part.



On my new motor I had the side faces clearanced as well and if you look closely you can see a small drilling on the lower right end of the rotor. Very precise, I believe Racing Beat uses a dynamic balancing machine.