3.0L Mercruiser noise vibration

[Quinnfloor]

I have a 2000 Larson 176 sei bowrider with a 3.0 mercruiser. I seems to have a vibration like a motor mount worn or something. It has different vibrations at different RPM's. When driving at low rpm and I turn the wheel which puts pressure on the drive train in seems to go away. The warmer and smoother the engine runs the less I hear it. HELP !!!

 

[Don S]

Re: 3.0L Mercruiser noise vibration

Pull the drive and check the ujoints and gimbal bearing, also make sure there is no water in the bellows and check the engine alignment.

 

[Quinnfloor]

Re: 3.0L Mercruiser noise vibration

I don't suppose it could be something simplier?

 

[Haut Medoc]

Re: 3.0L Mercruiser noise vibration

No, that is pretty simple.....
If you have not had your drive off in awhile, you need to lube the ujoints anyway......​

 

[tommays]

Re: 3.0L Mercruiser noise vibration

It is as simple as DIY on a boat gets 6 nuts and some c-clips

Now if you find water when you pull the drive then simple is all used up


Tommays

 

[180Diablo]

Re: 3.0L Mercruiser noise vibration

Now if you find water when you pull the drive then simple is all used up

I had to comment that how you worded that, it was pretty funny .... lol