Getting ready to do injectors on the lb7 and was looking it over and found what I think is fuel on the fuel line that comes out of the valve cover at the back of the passenger side,Have always noticed a slight knock back there,not bad but its there.Im waiting on the sticks to come so not driving it much,Has anybody seen this before and does it sound like a cracked injector body?Also have a slight diesel odor from the oil.Think I might have a hg issue as well because of vanishing coolant and carbon on the overflow but no pressure in the upper rad hose in the morning.Its not the end of the world because im doing it anyways but its bugging me not knowing.Thanks in advance and sorry about the novel.