Merc 225 EFI 1997 Counter rotation?

[boatdemon]

Does anyone know if you can take a standard rotation 1997 Merc. 225 EFI outboard and operate it with a left hand rotation prop by switching the cables at the helm? If so, Will this cause problems with the lower unit over time if done?

 

[WillyBWright]

Re: Merc 225 EFI 1997 Counter rotation?

Welcome to iboats.<br /><br />Counter Rotating gearcases are available and internally different to withstand the different load. Now if you were to use a Counter Rotation as Normal Rotation, I believe that's okay.

 

[marinegrh]

Re: Merc 225 EFI 1997 Counter rotation?

only if you want forward to be reverse and vise versa, the insides are different like the ltcmdr sais

 

[rodbolt]

Re: Merc 225 EFI 1997 Counter rotation?

it will work for a few minutes<br /> then you will get to see the insides of a gearcase. the thrust area that absorbs the propshft thrust are differentso one that particular case the answer unfortunatly is no.<br /> why would you wish to do that anyway? I have to many twins running about that have no issues with twins of the same rotation. they lose some efficiency and the handling,while not unsafe, is different .in fact I have a 23ft one here now with a pair of 3.0 mercruisers and it exhibits no handling problems.

 

[Kenny Bush]

Re: Merc 225 EFI 1997 Counter rotation?

Rodbolts correcto... If you are using a heavier offshore boat, you may not ever be able to tell the difference. I have only seen counter rotaters really make a difference on lighter tailriding boats... If you have a hull with a lot of deadrise, it may torque up to one side when turning heavy...

 

[boatdemon]

Re: Merc 225 EFI 1997 Counter rotation?

Thanks for your help, yes I am repowering a 30 ft center console scarab with twin 225's. Both are std rotation, was not sure if I needed to have one counter rotation or not.