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Mercury: Where o where has my steering fin gone?

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Mercury: Where o where has my steering fin gone?

Old 01-30-2021, 06:32 AM
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Default Mercury: Where o where has my steering fin gone?

The new V6/V8 Mercury's show the engines without the small steering fin attached below the rear of the cavitation plate.

Is this how they come now?

Do their engines no longer want to steer to one side without them?

https://duckduckgo.com/?q=mercury+4+...ages&ia=images
Old 01-30-2021, 06:34 AM
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Cable steering is not authorized for use with the V6/V8 platforms. Hydraulic or electric only. Torque fin is not longer needed because of that.
Old 01-30-2021, 06:41 AM
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Steering does not eliminate side torque so is that really the official word from Mercury?

What keeps the hull running straight when you are not correcting?
Old 01-30-2021, 07:13 AM
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Hydraulic, electrical and power assist electric/hydraulic systems eliminate steering torque. You wouldn’t be able to let go of the wheel and have the vessel still track straight if they didn’t. No need for the torque tab anymore on engines that don’t support cable steering systems.
Old 01-30-2021, 07:19 AM
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Actually, the steering torque is still there, you just don’t feel it very much at the helm because of the no feedback qualities of hydraulic steering.

Additionally, motor mounting height is beginning to be considered by boat manufacturers, and elevated motor heights, which almost always improve performance, greatly diminish the influence of the trim tab as it rises out if the water’s surface.
Old 01-30-2021, 07:25 AM
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No fin on my 300's, or on any of the bravo drives I owned.
Old 01-30-2021, 07:34 AM
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Thank you for your responses.

It looks like Yamaha also eliminated them on their V6/V8 big blocks too, adding just a flat zinc anode in their place.

Suzuki eliminated them on their duo prop but still have them on their other models
Old 01-30-2021, 08:28 AM
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Mid range and up Mercs haven’t had that fin for years - wasn’t one on my 2011 150
Old 01-30-2021, 08:32 AM
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Agree with better steering systems, it’s not needed. Also, if you have twin engines, you really don’t need them as the engines are counter-rotating and there is NO steering torque.
Old 01-30-2021, 08:33 AM
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Originally Posted by Bullshipper View Post
Thank you for your responses.

It looks like Yamaha also eliminated them on their V6/V8 big blocks too, adding just a flat zinc anode in their place.

Suzuki eliminated them on their duo prop but still have them on their other models
Lost mine on my F300 underway last season..went to replace...only the flat zinc available. I had no clue.
Old 01-30-2021, 08:36 AM
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Boat Zincs still has them. I have probably a degree or two of bend on my skeg and I find the tab zinc helpful to counteract that.
Old 01-30-2021, 11:44 AM
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I don't think this is new.

My 2001 Mercury 200 Optimax never came with a fin. Came new with a flat plate.

Oh, and I still have cable steering. The boat drives just fine. At least it has for the last 4800 or so hours.
Old 01-30-2021, 02:37 PM
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theyve been gone for twenty years with no feedback systems...
Old 01-30-2021, 03:38 PM
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Seee , you're hearing from a poster that has always bought used, and new are new to me.

My 2009 DF175's still have them, and I was gonna give my dealer a hard time on Monday for forgetting to supply them on my 2021's.

So you guys get to laugh at me instead of him.

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