i did a search already and i cant find something on my particular case....so well i start my car and idle it for about 5 minutes [1300 rpm] i have a 1991 crx hf..i know thats a high idle...then it starts to jump on the idle...so this time i decide to pop the hood and i happened to notice white smoke puffs coming from where the oil stick area[stick where you check oil]. Is this a serious problem because i am already in the process of buying a Dohc zc motor for replacement or is it an easy fix..thanks in advance..

 

sounds like a headgasket...not too bad a fix

or could be leaking exhaust from a cracked manifold?

 

bump any more thoughts