Harmonic balancer install

Instead of using the balancer bolt to pull it in and maybe screwing up the threads, go to a fastener supply store and get a piece of high quality threaded rod, a quality nut to go with it and some heavy washers. If you really want to splurge on it, get a thrust bearing as well.

By doing that you have basically created your own homemade version of a store bought installing tool that you can reuse again and again.