alright ive had this jdm h22 for only 600 miles now and have been real gentle so i can break her in. i swaped it into my SH prelude so as most no i took things from my old motor that were crank related. well the reason i decided to do the swap was because my old motor was shooting crank pulleys off. weard i no but i decided to jus say screw it after the 4th pulley and buy wat i was already looking into buying. so ya 600 miles later this jdm h22 is beginning to do the same sequence as my old motor jus before it started eating crank pulleys. i was wondering if the crank bolt loosining up could have to do with vibration somewere? if so were? could the fact that i have the balancer pulley and timing pulley from the old motor on this one, do to the needs of the crank sensors have anything to do with it? thanks in advance!

 

I dont know what is causing your problems, but why are you breaking in a JDM engine? did you rebuild it or something? if its just your typical h22a, the previous owner broke it in during that 30k-60k miles it was in the car in japan

 

Are you tightening the crank pulley up to the correct torque each time (220Nm)?

 

So you took crank parts out of a h22a4 that was spitting pulleys and put them in your h22a?And now your h22a is spitting pulleys?