Thread: Fitting a tenob auxiliary bracket

Any tips on how to attach one to a 4.6m fyran,which bolt material,do I need to glue as well as bolt,left or right side of main motor? Thanks

Use 316 stainless bolts and seal under bracket with bostik seal n flex poly urethane sealant , silicone will fail either side , up to you may opp fuel tank for balance .

Make sure the aux cannot restrict full lock of main.
Consider extra bearing plates inside and outside transom both of which are larger than the area of the tenob mounting bolts. I use heavy marine ply or 5+mn alum plate.
Stainless bolts and locknuts.

Will be running a 9.8 tohatsu as auxiliary,nice and light at 27kg,extra plates sounds like a good idea.

Depending on how your boat is set up you may be able to mount the auxiliary in such a position that you can fit an 'arm' linking it to your main outboard. This means that if you need to use the auxiliary motor, you lower the bracket to use the auxiliary, then connect it to the main motor, start it and set the throttle at the speed you want then steer it from the helm with the steering connected to the main motor. Driving even a small boat from the back using the auxiliary is quite difficult, especially with visibility of whats directly in front of the boat........

Mauser has it. Starboard side etc, do you want to link it to the big outboard to be able to steer from helm? Like Allgood mentioned . Running a seperate earth wire to smooth out dissimilar currents running through the plate is a solid help. Again, yep sika 291 is great, use plenty between the dissimilar metals this will help reduce the chances/ slow down any electrolysis. 316 stainless bolts and hardware is ideal. But personally from seeing dozens of second hand ali boats come in with corrosion issues, fresh water could have saved it. Fresh water fresh water fresh water, and abit of soapy carwash thrown in a bucket and brushed over the boat goes an extra step further and is worth it imo. And people leaving shit like pliers, hooks, sinkers, crescents etc on the floors or in pockets to sit while the boat is in storage or getting 'lost' under the marine carpet and sitting there slowly but surely plotting to punch a hole through your boat.

a tuna tube fits perfectly inside those if its the retractable types

Thanks for the advice fellas,one more question,do I run the earth wire to the earth on the battery?

Originally Posted by The bomb

Thanks for the advice fellas,one more question,do I run the earth wire to the earth on the battery?

Yes everything should be earthed to the battery nothing to the hull at all.

Originally Posted by Allgood

Depending on how your boat is set up you may be able to mount the auxiliary in such a position that you can fit an 'arm' linking it to your main outboard. This means that if you need to use the auxiliary motor, you lower the bracket to use the auxiliary, then connect it to the main motor, start it and set the throttle at the speed you want then steer it from the helm with the steering connected to the main motor. Driving even a small boat from the back using the auxiliary is quite difficult, especially with visibility of whats directly in front of the boat........

Yep am going to try and sort an arm of some sort to be able to use main steering setup.

Yea probably.

usually we just lock the AUX motor so it pushes directly forward and use the main motor as a rudder to steer the boat

Yea thinking that would work.

Originally Posted by Mauser308

Against that, the prop on the main will still be spinning unpowered which can increase wear etc. Also, the aux is pushing more drag that way which isn't ideal...

you can lift it out of the water if it bothers you once you are going in the correct direction
we dont but you could if it spins ya prop

we havent had to do a real test but we often do a few kms at most to give the AUX a run every now and then

The linkage on my main motor is on the boarding ladder side, so it may be easier fitting to the other side and using the main as a rudder idea. Although I don't know how it would go coming in over the bar like that.