Jeremygavin
Well-Known Member
- Mar 6, 2012
- 2,054
- Boat Info
- 2011 520 Sedan Bridge
2016 Sea Ray 19 SPX OB
2019 Walker Bay Generation 340
- Engines
- Cummins QSM11s
Mercury 150 Fourstroke
Honda 40hp
Boat is a 2011 520DB with QSM11s and 2 1/2" shafts. I did a shake down run yesterday as it went back in the water last week and I still have a harmonic sound on the port shaft from around 700-1300rpms. The boat did not make this noise at sea trial last Oct when I bought the boat. I first heard the sound when I was leaving Port Washington NY to bring the boat back to MA after purchase and I traced it down to coming from the port strut/prop area. In person at the survey and in his report surveyor had said the cutlass bearing looked good visually and had not play in the port side with very little play in the starboard side. He did note that the struts had looked like they had been re-bedded at some point. I spoke with the surveyor about the issue I got back to MA and he had said he thought it might be prop sing. I thought I was going to solve the issue when I had the props off this winter to have them tuned and little pitch taken out of them it would take care of the noise but it hasn’t.
Here is the like to a video I took of the noise last fall.
https://www.dropbox.com/s/q67zhtyo7zeiv07/IMG_2023.MOV?dl=0
It only makes the noise in fwd. between around 700-1200rpms, it does not do it in reverse. I have no vibration at all at any time. I went back down in the bilge yesterday to make sure the noise is not coming from transmission area but is defiantly coming from the strut area. So it must be an issue with the cutlass bearing. The issue is the yard can’t pull me back out of the water till June do to all the spring commissioning they are doing currently.
My question for everyone is do you think it is OK to run the boat for a month the way it is? I don’t want to do more damage but the boat is in RI for the winter and I need to get it back to MA and I would like to not lose a month while waiting for them to have time in June to get it back out of the water and look at it.
Also, what do you think could cause the cutlass bearing to whine like this? Could it be out of alignment? When I was working on it this spring I can turn the port prop by hand easily and hear no noises in the cutlass bearing when turning it by hand.
Thanks for your time.
Here is the like to a video I took of the noise last fall.
https://www.dropbox.com/s/q67zhtyo7zeiv07/IMG_2023.MOV?dl=0
It only makes the noise in fwd. between around 700-1200rpms, it does not do it in reverse. I have no vibration at all at any time. I went back down in the bilge yesterday to make sure the noise is not coming from transmission area but is defiantly coming from the strut area. So it must be an issue with the cutlass bearing. The issue is the yard can’t pull me back out of the water till June do to all the spring commissioning they are doing currently.
My question for everyone is do you think it is OK to run the boat for a month the way it is? I don’t want to do more damage but the boat is in RI for the winter and I need to get it back to MA and I would like to not lose a month while waiting for them to have time in June to get it back out of the water and look at it.
Also, what do you think could cause the cutlass bearing to whine like this? Could it be out of alignment? When I was working on it this spring I can turn the port prop by hand easily and hear no noises in the cutlass bearing when turning it by hand.
Thanks for your time.