i did the quick methord and my con rod snapped on my sh 28 but after doing some reserch i found out sh 28 have a problem with the con rod snapping i rebult it and and broke it in the slow way but i never replaced piston and sleeve but my engine is running fine now and serpsingly qucker than befor but i will admit i no abit about nitro engines i only no what i no thoug going on forums and taking my engine apart can u plz tell me if i have done some things wrong in rebluding my engine thanks