So the last race the pulley bolts sheared on crank. The locating pin on the crank hat/button came out so i was in a mad rush to pull the button off and put a new hat on with a locating pin, and install the pulley and timing disc on before the race. Swap was accomplished but i later realized that pulley i salvaged off another 1.8 engine is a bit different to my original. So the question is, is there a major difference (diameter / offset) from a NA 1.8 and NB 1.8 crank pulley? Just run it or find another 99 NB pulley and swap? if i have to swap do I have swap the hat again?