I have a blaster that i bought about 3 weeks ago. I noticed a small amount of oily residue coming from the head gasket area. After some help from members on the forum I figured the head bolts needed to be retightened as the the top end was just rebuilt before i bought it. Im interested to know if i should pull the head and clean the gasket and the oily gunk that has built up around the area before retorquing the bolts. Thanks alot for any help guys.