I'm still in the process of building my engine, but i notice that there is already an oil leak from somewhere and I have not started the engine yet I just put oil from time to time to make sure nothing rusts... the oil leak is from the apexi hg i got... where the badge is if i was to squize it there is oil on it... can it be that I did not put gasket maker around there? Or those 2 bolts on the sinde of the head are not tight enough?