Well guys, I fixed my leak, it was thermostat gasket. It has new "design" and suppose to slide on the edges of thermostat, I just put it on the top, just like o ring.
My engine still shakes on idle and only start running smooth after 30mh. Also oil pressure very low when idling on traffic light. Any ideas what that could be? Bad distrubiter?
Thanks an advance.

 

rasputinlv, please start a new thread of your own concerning the new problems.