What Is this Noise. Please Help!!

seehad79

Cadet
Joined
May 31, 2010
Messages
11
Ok i have a 96 wellcraft with a 4.3 mercruser and alpha one gen II outdrive. just got it last year and everything ran good. towards the end of the season i noticed when i would make sharp turns there seemed to be a bit of a knocking noise but nothing too bad. I just took it out for the first time this year last weekend. when I started with the hose it at my house everything sounded good. when i got to the river and started it I noticed a ruffness. I cant exactly explain it. kinda sounded like a bad bearing or gears with now oil but all the fluids were good. it made the noise in netural and in drive seemed to be more pronounced at low speeds but i think thats because the noise was getting drowned out at higher throtle. Im pretty confident its not coming from the motor. anyone got any ideas or advice?

oh, also the steering seemed to be the slightest bit stiff. when i turned the wheel its not perfectly smooth, it kinda pulses a very little bit from stiff to easy, stiff to easy. its not enough to make it hard to steer at all so i dont know if its supposed to be like this or not.

other than the noise though everything ran good
 

jtmarten

Master Chief Petty Officer
Joined
Aug 2, 2004
Messages
825
Re: What Is this Noise. Please Help!!

Sounds like bad gimbal bearing or bad u-joints.
 

seehad79

Cadet
Joined
May 31, 2010
Messages
11
Re: What Is this Noise. Please Help!!

thats what im getting from reading other post. Is there any actions that make them go bad or is it just normal wear and tear? are they hard to replace?
 

seehad79

Cadet
Joined
May 31, 2010
Messages
11
Re: What Is this Noise. Please Help!!

when I take it apart, its easy to tell if a bearing is bad. how do I tell if the u joint is bad, will it just be hard to move? any tell tale signs to look for?
 

bigdaddypt

Petty Officer 1st Class
Joined
Aug 10, 2009
Messages
233
Re: What Is this Noise. Please Help!!

it could be that water got in the bellows...that just happened on my boat. I needed a bellows job, gimbal bearing and my entire outdrive needed to be replaced.
 

fossill

Chief Petty Officer
Joined
Jun 20, 2009
Messages
427
Re: What Is this Noise. Please Help!!

how do I tell if the u joint is bad, will it just be hard to move? any tell tale signs to look for?

"Dry" rust marks around joint seals, sloppyness in u-joints....you need 2 large channnel lock pliers to check or a vice, binding and or roughness when moved through various positions.
 
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