So I just had a 200hr service done. I drop the boat in the water and immediately after I start it I can hear something is wrong. It is making almost a deep whining sound almost thinking the belt tension pulley. I pull it out hook up to the hose so I can look around better starts peeing at a normal pressure. I shut it off so i can remove the flywheel cover. Restart and it wont pressurize again. I tool around scratching my head for a bit. And decide to drop it back in the water to see if the noise stops if I cycle through gears. Drop it in, it pees immediately, I shift in to reverse and the noise stops, and it sounds normal, neutral noisy, forward no noise, neutral noisy Fuck it shop opens at 8, back to hemet I go. At the shop mechanic is going through everything,listening with the stethoscope can't find anything. He drops the lower unit to inspect the water pump. The upper pump housing comes off and above the metal cup, inside the housing, the housing has started to get get chewed up, from what, we don't know. Also a notch has started to get worn around the drive shaft rite at the top of the upper pump housing. Mechanic replaced the upper housing reassembled the pump and installed the lower still no results. The mechanic and owner of the shop say go run it, you are under warranty, we need to know if anything changes under load. To skinner I go nothing changed. Forward is perfectly fine reverse is perfectly fine neutral is CONCERNING. Any thoughts? Boat goes back to the shop on monday so they can figure out what in the hell is going on. As of saturday they had no idea off hand what could be making the noise. Soooo frustrating, I only have 237 hours on my engine. I spent $13,700 on a repower and $640 on annual /100hr services to avoid situations like this. I played the used motor blues for way too long. And frankly it just sucks.