A stronger outboard bracket?

[Ronald_M]

Hi.

Does anyone know if the transom fittings shown here form part of an outboard-motor mounting system? It looks as if they might provide a method of attachment rather more secure than the usual cantilever-type brackets.

Anyone know the manufacturer/supplier?

TIA

Ron.

 

[VicS]

[ QUOTE ]
Does anyone know

[/ QUOTE ] Yes they are an outboard mounting system.
but i don't know who makes it or if anyone does now.

Nothing wrong with the cantilever types provided you get a decent one and do not overload it with a heavier or more powerful engine than it was designed for. Those made with folded aluminium angle rather that extruded (is that the right word) may tend to crack where the angle is folded.
You can get stainless ones.

My aluminium one is still going strong after 30 years.

 

[Ronald_M]

Thanks, VicS.

Subsequent to my post, and after even more Googling, I discovered this:-

This one is by Plastimo, I believe. It would appear that the fittings shown in my original picture could form part of something similar.

I take your point about cantilever brackets. My recently purchased boat came with an old, relatively light 4hp 2-stroke which I have replaced with a new, heavier 5hp 4-stroke. It is rather disconcerting to observe the transom flexing under the increased load! I put this down to the fact that the bracket might be insufficiently wide. I'm tempted to replace it with something designed for, say, a 10 or 15hp engine, but I'm concerned that the counterbalancing spring-system might prevent me from ever lowering the motor into the water!

Perhaps more research is required!

Cheers,

Ron.

 

[graham]

If the transom is flexing you could fit a large plywood pad inside to spread the load more then use the same bracket with longer bolts.

 

[VicS]

That's something similar.
I would not worry about the springs of a cantilever type making it difficult to lower the engine (within reason) It's whole lot easier to put a bit of weight on to push it down that it is to lift it up if the springs are not powerful enough. My current engine is good bit heavier than the original, although it is still within the power range of the bracket, and I would dearly love some stronger springs.

I think you'll find with the sliding type you will need a tackle to raise almost anything.
The trouble with outboards is that they get heavier year upon year. I used to be able to lift mine on and off the bracket but now its a struggle even when standing on dry land

 

[Ronald_M]

Maybe something like this is required:

This one certainly looks beefy, and is rated up to 50kg (my new engine weighs about 28kg). Th mounting holes appear to be quite widely spaced (less wobbling about?) and it looks as if there is a trim-adjustment facility.

Ron.

 

[William_H]

The problem with the sliding o/b bracket is that it still must be cantilevered out from the transom to make room for the front of the engine that is forward of the clamps. This cantilever puts a side strain on the sliding mechanism that makes it hard to have it free of friction.

I think a swinging cantilever type is likely to give less friction and if you use a tackle the pull is up and inboard so being easier to apply.

Mine is essentially home made by the boat manufacturer 27 years ago. It is of Al angle with no helper springs. I fitted a diagonal lock mechanism to stop it rising under power as the geometry moves the bracket forward and up.

good lcuk olewill