I was getting my 87 GN put back together after replacing a bad coolant hose, and I noticed a slight drip from the silver turbo oil feed line. I turn the car off and look at where it might be coming from, exactly. I ran my finger around the bottom of the line and I can't feel any bolt heads and it's moving around. Problem found. Question is, what size are the bolts that hold that hold the line to the bottom of the turbo? I can't seem to locate them at all.