any one running a 23/ 25 cat with same rotating motors

[MercNuts]

No your the one acting stupid , original post did NOT mention any brand so stop trying to be pedantic.

Numbnuts it wont werc with a Merc. That means that with a majority of outboards that someone would run on a twin engine tunnel it won't work. If anyone is being pedantic it's you. The chances of this question being asked by someone planning on running a pair of Suzukis on a high perf tunnel is less than one in a million. Learn what you're talking about before you pick a fight and maybe you won't look like the idiot you've shown yourself to be now. Does it strike you that nobody else has chimed in and said hey thats a good idea.

[phillnjack]

well mercnuts
i will not get into a fight with someone from Alabama.
i was bought up never to pick on or to even attempt to argue with someone who is not the full shilling.
i know you would love to sit and make silly noises and have a hysterical giggle with all your kin folk folk round
a fire singing ol Susanna and playing the banjo's etc
so i will not go upsetting you and will not even bite, it just don't work this time Jethro.


now i am out of here as its too hard trying to get through,
i will leave you all to get on with your way of thinking on this subject.

im off to watch Ghanna win their game tonight .


phill

[MercNuts]

well mercnuts
i will not get into a fight with someone from Alabama.
i was bought up never to pick on or to even attempt to argue with someone who is not the full shilling.
i know you would love to sit and make silly noises and have a hysterical giggle with all your kin folk folk round
a fire singing ol Susanna and playing the banjo's etc
so i will not go upsetting you and will not even bite, it just don't work this time Jethro.


now i am out of here as its too hard trying to get through,
i will leave you all to get on with your way of thinking on this subject.

im off to watch Ghanna win their game tonight .


phill

Yeah, yeah weve heard it all. The governors mansion here burned all the way to the axles, the way you know that the toothbrush was invented in Alabama was because anywhere else and it wouldve been called a teeth brush and many more. But the truth is, youve labeled yourself as a moron to anybody that has ever been inside a Mercury gearcase of either the old inline or later V6 variety and instead of saying, oh I see, you continue hang onto your ignorance and argue. And we wish the best of luck to whoever Ghanna is playing at whatever sport that is.

[powerabout]

Yep alabama, the worlds largest market for outboard motors yet nobody knows anything about them, hard to believe really...
Well at least in the uk you have all the seagul outboard specialists to help you.the Seagul of course is about the technology level your mechanical skills would be comfortable with it seems?

[Euroski]

Only one way to settle this... do it and let us know the results

[cave man]

right now both motors are turning the same way. I am going to a least take it for a blast an see what dose ill let you guys know how I make out

[perfmarine1]

It will run ok. I will crab at higher speeds,and won't be as efficient as counter rotating. But it will work just fine as a pleasure boat. Been running mine like that for years.

[powerabout]

if you haven't had the pleasure of a lefty on a twin rig you dont know what your missing is one way to describe it...

PS What type of cat is that Perfmarine1?

[perfmarine1]

Eliminator Daytona 23' And I know what I will be missing.$$$$$$$$$$$$ Gearcase= $800-$4000 and hard to find for my motors. Prop= $600-$1200 Or merc motors $20,000-$40,000 Just not worth it for a boat I only use 3 times a year. Have 4 other boats to run and take care of.

[powerabout]

Yep
One day we will have a reliable omc lh box

[NZ Sidewinder]

When you run a right hand gearbox in reverse to act as counter rotating the consideration often overlooked is the load on the reverse gear caused by the pinion.
The more load that is applied to the pinion / reverse gear mesh, the more they try and push apart.
In forward gear this load is resisted by the pinion bearing on the drive shaft and the forward gear bearing.
When running hard in reverse, this load is resisted by the pinion bearing and the single row deep groove reverse bearing.
That revers gear setup isn't designed to take massive loads.

[powerabout]

When you run a right hand gearbox in reverse to act as counter rotating the consideration often overlooked is the load on the reverse gear caused by the pinion.
The more load that is applied to the pinion / reverse gear mesh, the more they try and push apart.
In forward gear this load is resisted by the pinion bearing on the drive shaft and the forward gear bearing.
When running hard in reverse, this load is resisted by the pinion bearing and the single row deep groove reverse bearing.
That revers gear setup isn't designed to take massive loads.

Dont forget you could have straight cut gears, Merc spiral bevel or OMC ones cut in the reverse direction..

[NZ Sidewinder]

I'm thinking that no matter what the tooth form is, when the reverse gear is loaded, the gear is trying g to move away from the pinion.
The reverse bearing isn't designed to tolerate that.
That reverse gear is being point loaded in that the gear is trying to tip over.
I know a bloke who purchaced a boat that was running a right hand box in reverse with a lefty prop and it was going but I wouldnt run it like that

[powerabout]

I'm thinking that no matter what the tooth form is, when the reverse gear is loaded, the gear is trying g to move away from the pinion.
The reverse bearing isn't designed to tolerate that.
That reverse gear is being point loaded in that the gear is trying to tip over.
I know a bloke who purchaced a boat that was running a right hand box in reverse with a lefty prop and it was going but I wouldnt run it like that

You would think but look at the tooth cut and the pinion thrust bearings, old Merc pulling in, old omc pushing out
Merc then changed to pushing out then said ok why dont we just hold it still..finally.

[NICE PAIR]

Running your Sportmaster units in reverse with the wrong props will cost you some $$ If you run it long enough, it'll cost you lots of $$$$ (I know a guy that did just that)