"Hi, new member great website,
"Hi, new member great website, I have a mercruiser GM 4-cylinder 3.0L 40 hours on new engine, I’m hearing a chirping kind of like a cricket noise not really a squealing, this noise only starts up at 1800 rpm and above anything under this the noise will stop and can be run with out noise for hours, checked out the alternator bearing and belt, greased the gimbel bearing and coupler, boat runs great other than this noise that comes up, 40 psi oil pressure running about 75 –80 degrees but soon as you crank her up sure enough the noise is back when run at 1800 and below it will stop. Boat out of water with muffs I can’t get noise even taking up to 1800-rpm hate to top 2000 rpm out of water. I worry if I take it in to the shop then they will thrash the hell out of it to try and get the noise up, I wonder if anybody else has had this problem ..Thanks Ray"
"Hi, new member great website, I have a mercruiser GM 4-cylinder 3.0L 40 hours on new engine, I’m hearing a chirping kind of like a cricket noise not really a squealing, this noise only starts up at 1800 rpm and above anything under this the noise will stop and can be run with out noise for hours, checked out the alternator bearing and belt, greased the gimbel bearing and coupler, boat runs great other than this noise that comes up, 40 psi oil pressure running about 75 –80 degrees but soon as you crank her up sure enough the noise is back when run at 1800 and below it will stop. Boat out of water with muffs I can’t get noise even taking up to 1800-rpm hate to top 2000 rpm out of water. I worry if I take it in to the shop then they will thrash the hell out of it to try and get the noise up, I wonder if anybody else has had this problem ..Thanks Ray"