Gimbal bearing

[team38]

I had a gimbal bearing replaced on my mercruiser I/O and now the boat shakes at about 5mph but goes away under full throttle any ideas??

 

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[lost a lure]

Alignment? Did the u joint get replaced?

 

 

[team38]

Just gimbal replaced

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[team38]

The local marine shop just replaced gimbal is my understanding

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[lakebound88]

Was the prop slightly bent during the service?

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[team38]

Prop looks normal nothing noticeably different from when it was dropped off....

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[Bozeman Bob]

Why was the gimbal bearing replaced ? Cracked bellows and water intrusion ? If so I would agree with the U- joint being wiped out as well. Most marinas would of caught that ,I would take it back if the vibration wasn't there to begin with. Or pull the outdrive and do it yourself or a local auto repair shop can handle it if the marina isn't  fair with there pricing.

[team38]

It was replaced because it was making noise no water intrusion or cracked bellows. I just dropped it off was wondering if there was an easy explanation for the vibration guess not.....

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[lakebound88]

Could be engine misfire for that rpm range..

Making your stories, Reel Stories, since 2011!!

[Bozeman Bob]

And the marina diagnosed the problem or you just told them to change the gimbal bearing ? What kind of noise was it making ?

[team38]

The boat was making the sound of a bad wheel bearing for last week or so it was suggested by several people it was the gimbal so I told them to replace it.

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[Todd in NY]

I hope the marina actually confirmed it was a bad gimbal bearing and not something else. It very well might have been a bad gimbal bearing, AND something else.

 

I use Spicer's in Clayton, and they are real good about diagnosing the problem, then calling and/or emailing me with a detailed diagnosis and the recommended repair before they start working on it.

[Zinger11]

When they replaced your bearing did they check your engine alignment ? It's easy to do and shoud be done every 3 years. If it comes out of alignment you could lose your gimbal bearing or even worse your coupling

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