Finally got the Ole Sea Ray launched with a new through hull cooling water pick up and true sea ****, and it seems all the previous demons are now gone and it is running smooth (minus an occasional miss lol) but when checking over the thru hull assembly I noticed that the entire 1-1/4 hose has a very high pitched constant vibration.
I have no idea if this is normal as I never had a reason to touch the hose before and I know that the pump itself is not the most precision part either, but it seems a bit odd to have those vibes leading to a fitting that is sealing water from entering the boat so I wanted to hear some thoughts on this.
Now there is also a small wine that sounds like or similar to that of a PS pump and it has been there since the last rebuild of the engine and was close enough that one mechanic thought that the PS pump could have been a part of my previous engine vibration problem that ended up being an a flywheel that was installed in the wrong position. Note that the noise was not present in the original engine or previous to a year ago etc.
Also though the new water pick up seems to work great and the gauge shows the temps lower than before etc it still climbs at planning speeds and even though the risers remain cool enough to hold your hand on them, and even the manifolds at lower engine speeds so I think it is getting enough cooling water supply.
Appreciate any thoughts and ideas and thanks in advance for your help.
The engine is a rebuilt 7.4l 454 orig 330hp w a bravo 1 drive.
I have no idea if this is normal as I never had a reason to touch the hose before and I know that the pump itself is not the most precision part either, but it seems a bit odd to have those vibes leading to a fitting that is sealing water from entering the boat so I wanted to hear some thoughts on this.
Now there is also a small wine that sounds like or similar to that of a PS pump and it has been there since the last rebuild of the engine and was close enough that one mechanic thought that the PS pump could have been a part of my previous engine vibration problem that ended up being an a flywheel that was installed in the wrong position. Note that the noise was not present in the original engine or previous to a year ago etc.
Also though the new water pick up seems to work great and the gauge shows the temps lower than before etc it still climbs at planning speeds and even though the risers remain cool enough to hold your hand on them, and even the manifolds at lower engine speeds so I think it is getting enough cooling water supply.
Appreciate any thoughts and ideas and thanks in advance for your help.
The engine is a rebuilt 7.4l 454 orig 330hp w a bravo 1 drive.