Hello all,
Im back again with more 120 mercruiser problem solving. About a month ago I was on the lake cruising around 4000 RPM when I heard a change in exaust note. The engine exaust noise seemed to increase so I stopped the boat wondering if a hole had developed in the exaust manifold. When I slowed down and came to a stop the engine was making what sounded like a ticking noise so I immediately turned off the engine and checked the oil. No oil on the dip stick luckily I was right next to a gas station and was able to puts over and get some oil to put in the motor. It took almost 2 quarts to get to the full line...Oil filled up it fired right up no noise and we enjoyed the rest of the day on the water and thought I was off the hook. Next time I take the boat out I notice a little tick/ squeaking down following the engine tone at idle. Its not there when you first start it it only develops after a period of half/full throtle then back to idle. Then after about 2 minuets at idle again it goes away. Somttimes its worse then others it just seems strange to me. Ive tried to track it down, sounds like its coming from the manifold side of the engine basically sounds like its coming from the manifold but it sounds like a tick. I tried to feel for a leak around the manifold but it gets hot as hell quick. I have in my head its somthing to do with the manifold becuase of the change in exaust sound when it first happened or am I just telling myself that dening the inevitible. Any help would be great thanks.
Side note: Boat fires right up, good oil pressure (40psi), It gets up and goes no problem, Ive probably put about 5 hours on it since this happened (probably not the best idea lol)
Im back again with more 120 mercruiser problem solving. About a month ago I was on the lake cruising around 4000 RPM when I heard a change in exaust note. The engine exaust noise seemed to increase so I stopped the boat wondering if a hole had developed in the exaust manifold. When I slowed down and came to a stop the engine was making what sounded like a ticking noise so I immediately turned off the engine and checked the oil. No oil on the dip stick luckily I was right next to a gas station and was able to puts over and get some oil to put in the motor. It took almost 2 quarts to get to the full line...Oil filled up it fired right up no noise and we enjoyed the rest of the day on the water and thought I was off the hook. Next time I take the boat out I notice a little tick/ squeaking down following the engine tone at idle. Its not there when you first start it it only develops after a period of half/full throtle then back to idle. Then after about 2 minuets at idle again it goes away. Somttimes its worse then others it just seems strange to me. Ive tried to track it down, sounds like its coming from the manifold side of the engine basically sounds like its coming from the manifold but it sounds like a tick. I tried to feel for a leak around the manifold but it gets hot as hell quick. I have in my head its somthing to do with the manifold becuase of the change in exaust sound when it first happened or am I just telling myself that dening the inevitible. Any help would be great thanks.
Side note: Boat fires right up, good oil pressure (40psi), It gets up and goes no problem, Ive probably put about 5 hours on it since this happened (probably not the best idea lol)
