Oil Pressure
 

I have a 2006 19x Mariah owned for 3 years, put in about 3 times ago on the way back to the dock the oil pressure dropped engine made a funny noise slowed down cruised back went away. Took out again this past weekend ran for all over the Rappahannock slowed down in the channel and oil pressure dropped again. Any ideas??? Have not had 1 single problem with this boat yet. Usually stays around 40 and went down to almost 0. Oil still clean and where its supposed to be.