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PostPosted: Mon Aug 18, 2014 6:13 am 
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Dolphin

Joined: Tue Jun 10, 2014 7:01 am
Posts: 80
Hello,
at the moment I'm planing to build a Trim Tab for my 1995 Cobra SX Drive.
I like to use aluminium.

In order to recreate the original, I need the dimensions.
Does anybody has a drawing with the dimensions included?


Thanks a lot, in advance...


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PostPosted: Mon Aug 18, 2014 11:17 am 
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email admin your custom rank

Joined: Thu Jun 29, 2006 10:26 pm
Posts: 5688
Location: Long Island NY
I looked in the parts catalog for the joint venture years (1994-1998) and the Cobras made then, do not have a trim tab at all. The older pure OMC models like mine do though, you can see it in this pic....On these you can adjust the angle of the tab, like an outboard....

http://www.crowleymarine.com/johnson-ev ... /56437.cfm

The Volvo SX did not have one either...some have an exhaust flap in that area....

http://www.volvopentastore.com/Lower-Ge ... _id.792041

So the question is, why do you want to do this?

_________________
88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II


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PostPosted: Tue Aug 19, 2014 5:45 am 
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Dolphin

Joined: Tue Jun 10, 2014 7:01 am
Posts: 80
LouC wrote:
I looked in the parts catalog for the joint venture years (1994-1998) and the Cobras made then, do not have a trim tab at all. The older pure OMC models like mine do though, you can see it in this pic....On these you can adjust the angle of the tab, like an outboard....

http://www.crowleymarine.com/johnson-ev ... /56437.cfm

The Volvo SX did not have one either...some have an exhaust flap in that area....

http://www.volvopentastore.com/Lower-Ge ... _id.792041

So the question is, why do you want to do this?




Hi, thank you for your answer.
I like to do that, because at higher speeds, I have a light left spin and I have to counter-steer.
I think with a additional trim tab I can compensate this spin. I do not dare to adjust the steering, because I have'nt done this before.

In my drive is a hole for mounting a trim tab. That is the reason why I am searching for.


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PostPosted: Tue Aug 19, 2014 8:14 am 
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email admin your custom rank

Joined: Thu Jun 29, 2006 10:26 pm
Posts: 5688
Location: Long Island NY
Interesting it does not appear in the parts diagrams but maybe it was an option. Why not put adjustable trim tabs on your boat? They ate designed to do what you want.

_________________
88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II


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