Aircrewman28
New Member
Gents,
I am relatively new to this forum! I have learned a lot reading hoping I would never have to find myself asking a maintenance question. Well, my luck has run out. I was hoping to get an opinion regarding my recent problem. Today while out on the St. Johns River in FL I was tooling right along around 3600 RPM when all of a sudden I started losing RPMs without touching the throttle. I cut the throttle back and tried to advance again to no avail, I could not get power; She would start to run sluggish and hesitant around 2000rpm. At that point I pulled over at the nearest dock to inspect a little further. Upon lifting the deck and listening to the motor I heard a knocking sound (I know that’s generally not good). The knocking got faster as I increased RPM. It did not sound like an old car knocking; it was more of a high pitch click/knock. When double-checking the oil, I noticed some smoke coming from under the carb. When opening the engine oil caps, there was some smoke coming out. My oil press was good, and temp was within limits. So the clicking/knocking, sluggish power inputs coupled with the smoke from the oil caps leaves me clueless? Could this be caused by a bad plug? A cylinder not firing? Being close to the marina and against better judgment I limped her home about 3 knots and pulled her out safely. I got some opinions from friends already, but, wanted a solid starting point from the Sea Ray experts. Next, call to the Mech. I have a 5.7L Merc 265hp w/BII. Any advice would be GREATLY appreciated!
I am relatively new to this forum! I have learned a lot reading hoping I would never have to find myself asking a maintenance question. Well, my luck has run out. I was hoping to get an opinion regarding my recent problem. Today while out on the St. Johns River in FL I was tooling right along around 3600 RPM when all of a sudden I started losing RPMs without touching the throttle. I cut the throttle back and tried to advance again to no avail, I could not get power; She would start to run sluggish and hesitant around 2000rpm. At that point I pulled over at the nearest dock to inspect a little further. Upon lifting the deck and listening to the motor I heard a knocking sound (I know that’s generally not good). The knocking got faster as I increased RPM. It did not sound like an old car knocking; it was more of a high pitch click/knock. When double-checking the oil, I noticed some smoke coming from under the carb. When opening the engine oil caps, there was some smoke coming out. My oil press was good, and temp was within limits. So the clicking/knocking, sluggish power inputs coupled with the smoke from the oil caps leaves me clueless? Could this be caused by a bad plug? A cylinder not firing? Being close to the marina and against better judgment I limped her home about 3 knots and pulled her out safely. I got some opinions from friends already, but, wanted a solid starting point from the Sea Ray experts. Next, call to the Mech. I have a 5.7L Merc 265hp w/BII. Any advice would be GREATLY appreciated!
