Lack of lubrication

Friends I have a problem, I tell you that I have a great Voyager 3.3 but it seems that the oil does not reach the aim of the back cover so it makes a noise from Takataka the typical aterm that puts the engine for 5 min. Bought in Autozone and then a thinner oil was put 10W 40, and at first I stop sounding but I return the noise and I do not know if I really have another alternative before lowering the Machine I hope they give me another alternative that I can do in addition to lowering the engine since as you know that it is a $$$$ I will thank them for a lot to guide me that they have a happy day bye.
Pd the engine takes off perfectly and its speed is very good it would be a shame to adjust it, some had told me that it was the camshaft that has a pressure leak but if fura in the physical oil pressure meter would it be observed not ???? Please help me please.

That will depend on where the coupling for the oil precion meter is, check the oil shock you want the problem is broken or obstructed.