When drilling on cranks for balancing, install a simple jackscrew between the counterweights to eliminate flex at the rod journal. I use the same ones for drilling in line with the crank for heavy metal install, if the counterweight is unsupported on the drill...
If you find yourself having to fill a counterweight hole when balancing, here’s a tip. Once your piece of metal is installed, drill and tap for a tapered crack repair plug, as a secondary retention procedure. This, along with the press fit, gives you absolute...
I hone the I.D. of an old harmonic balancer to slide on the crank, so it works as a stabilizer when removing and installing tone wheels. Arus Kinney AK's Engine and Machining Covington, GA
A guy can't buy everything so when a new type of tapered bushing connecting rod comes in, I make my own installer. It's easy enough to remove the old bushing with an appropriate size bushing driver or turn one out. Remove the taper from one side of an old bushing and...
When you're balancing a crank and you go to make a smaller hole larger, the drill always wants to walk around the perimeter of the hole. I find that if I pre-drill to the correct size with a step drill, it eliminates this issue. Adney Brown Performance Crankshaft inc....
When I’m balancing a crank and need to add Mallory-metal, I chuck a marker or paint pen into the drill and peck a mark on the counterweight. Once I remove the crank to go to the mill to drill through the side, I have a nice reference for where to center the hole. Big...