I FOUND WHERE NISSION HAS UPDATED TIMMING COMPONENTS . IVE PULLED UPPER FRONT COVER TO SEE IF GUIDES WERE BROKE NO GUIDES BROKE,OIL PRESURE GOOD NOISE @IDLE WHAT HAS BEEN UPDATED,IS IT JUST A GUIDE THAT HAS A METAL BASE INSTEED OF PLASTIC WILL THE NEW KIT HELP... Login to read more.