My 85 Elite 150 blew it's head gasket and I am having trouble with locating the "T' mark the service manual says to locate on the flywheel while looking thru the peephole on the engine case. What I have found are two parallel straight indentations on the flywheel about 1/8' apart. Is this what i 'm looking for and do i put the mark on the case between them or on one of the other? I'm using the online pdf manual and the image is kinda fuzzy so it's no help. Also, did you know the head gaskets are NLA? I happened to have an old one that looked good, so i sprayed it with copper gasket maker and used it. I did find a guy on ebay who sells copper gaskets for $22. Hope someone can help me out on the timing marks. Thanks.