Which balancer?

yellow rose said
The ones that were too tight split at the key way. And then it would slowly continue to fracture until it exploded. I've seen other dampers have that issue.

There were some that were too loose. IIRC there were some small block Chevy cranks that were made with BBC snouts. They has little to no press, and they were being used with stud and bearing mount loctite. Those were the cranks that had the snout break off.

All of this was documented back in the very late 1980's. I think it's funny that FD is still in business and doing work for many elite motor sports companies. They are even making dampers for cam shafts in certain applications now.

OK, tnx. I would never have thought of it splitting along the keyway... Murphy at his finest LOL! As for being too loose and using a bearing/sleeve retainer compound...yeah, that problem makes sense... the compound becomes part of the connection transmission path.. not designed to do that at all!

As for warnings, always, always torque the snout bolt to spec.. that clamping pressure is the ONLY thing that literally 'joins' the damper to the crank; the damper has to essentially become part of the crank to do it's job of damping.