my engine had a cracked piston and broken crank ring, how the crank ring broke is still unknown, but i feel the key to longevity to this motor is once it is set don't play with the needle. but after the engine was rebuilt I had a e-clip break and I bent a push rod anything else that I have had to replace since was of my own stupidity!!!!!!!!!!! great motor looking forward to the release of the 170.


gary