jstuntin
When in doubt Rol'm out
- Location
- Pittsfield, MA
I have a bob gen 2 setup with a kawi 750 motor,driveshaft and pump. since my driveshaft like the yamaha setup is not all one piece with the pump i cant really shim it. I have the engine in the hull non shimmed and the rear pump shimmed down in the rear. So now heres the problem. The first pump shaft spun the impeller off ruining the shaft and impeller againt pump walls. Rebuilt pump shaft and bearings, new impeller installed. Rode for about 1 hour, impeller was coming loose again and hitting pump walls. Took impeller out of the pump and put lock tight on it to stop from loosing up. Then rode yesterday for about 2 hours, sheared pump shaft right in half?? how do i shim this,solve this or has anyone else had this problem??? need help