Quote:

---

to the original poster:

did you have any balancers breaking before this crank broke?

asking since i have observed a crazy behavior from a friends cast eagle crank and im afriad his crank is about to do what yours already did, at about the same powerlevel.

---

I wonder how many of these failed cranks are due to other problems as Scat points out with their units.
First, have these units been balanced externally? Or balanced at all.
If so have they been balanced properly by a pro?
Second, assembly? Were the balancers installed correctly? Or pounded on with a hammer.
Bottom line is these engines are often assembled by backyard mechanics with backyard practices. Often leading to mechanical failures.
People suggesting they broke a crank in the burn out box is just silly. Simply that was the hair that broke the camels back. So what really lead to the crank failure? Over revving? Who knows, I am sure there are many reasons for the failures, however my experience has been if built properly, within the limits outlined by the manufacters both Scat and Eagle make good products.
Why more eagle failures? They probably out sell Scat two to one.