engine noise?

[steelhead#1]

well i just fired up my starcraft for the first time and is running great.I did notice a small noise and vibration when running.I don't think is motor but what else could it be?The noise does not change when in gear.Out of ideas need help nick

EDIT: mercruiser 120 4cylinder engine#2224737 year 1969

 

[Justin Kennedy]

Re: engine noise?

Gimbal bearing or u-joint possibly

 

[Don S]

Re: engine noise?

Read this thread.
http://forums.iboats.com/showthread.php?t=220416

 

[steelhead#1]

Re: engine noise?

mercruiser 120 4cylinder engine#2224737 hull#6725642 year 1969

 

[mkast]

Re: engine noise?

notice a small noise and vibration

I can't hear the noise yet!
More information.

 

[Bondo]

Re: engine noise?

I can't hear the noise yet!
More information.

Ayuh,... It sounds danm near Perfect, from up here in Jeff. county Ny....

 

[Don S]

Re: engine noise?

I can't hear the noise yet!
More information.

In other words, describe "small noise". Growl, knock, click, ticking, etc. Where is it coming from, front of the motor, top, bottom back of the engine.
We can't hear it, and trust me, they can make all kinds of noises. We are not mind readers here, we can only go by the information you furnish in what you tell us, pictures, and videos.

 

[mkast]

Re: engine noise?

they can make all kinds of noises.

First thing I thought, "Like a chicken caught in the tractor's nuts!."
No, not Samuel Clemens, Blazing Saddles.

 

[Bondo]

Re: engine noise?

First thing I thought, "Like a chicken caught in the tractor's nuts!."
No, not Samuel Clemens, Blazing Saddles.

Ayuh,... That would be a Big noise, atleast for awhile...

OP said small noise....

 

[mkast]

Re: engine noise?

OP said small noise....

It was a small chicken.

 

[fossill]

Re: engine noise?

First thing I thought, "Like a chicken caught in the tractor's nuts!."
No, not Samuel Clemens, Blazing Saddles.

That would be a really
high pitched squawk type noise

 

[steelhead#1]

Re: engine noise?

it is a growl sound that is coming from back of boat.I did contact the guy i got the boat from and he said he installed all new gimbel bearing and housing.I'm starting to think gimbel bearing because not sure if this dude even knew what he was doing but i'm just a forklift tech and boats dont have forks.

 

[Don S]

Re: engine noise?

A growl from the back of the engine is most likely the gimbal bearing. Remove the outdrive and turn the bearing by hand, that will tell you.
Is there water in the bellows?