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Old 13 April 2010, 13:18   #11
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Country: UK - Scotland
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I fitted a Tohatsu 3.5hp to a Plastimo stainless steel adjustable bracket to the transom. As it's only 17kg - I attached a ratchet strap to the seat pod to keep it under tension. No rattle - job done.
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Old 13 April 2010, 13:21   #12
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Quote:
Originally Posted by JABS View Post
Having just spent money on having some gelcoat repairs on the transom, from experience, don't do it! We had it directly on the transom.

You have a heavy four stroke aux being thrown around on a bit of fibreglass covered ply.

Carry it on board somewhere.
Eh ? Hopefully a redbay transom that can carry a 225 will be capable of carrying a 6hp?

No point in carrying on board when you need it you may be in a hurry so unstrapping and then mounting an outboard in difficult conditions is not good news.

I had an aux on my last Osprey and hung it on the transom when needed it could be deployed in seconds. Make sure you run the aux on a regular basis as they do suffer a bit hanging off the transom in all weathers.
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Old 13 April 2010, 14:26   #13
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The issue is to do with the shock loads.

Hopefully the main engine is bolted onto the transom.

The auxiliary will be clamped on. The clamping area is quite small and, in fact, the clamp on some small engines are ridged to get better grip, particularly on a wooden transom.

The issue with the aux that I found is that when the boat is thrown around the aux jumps all over the place and stresses the transom.

Four stroke motors are heavy. In fact I gave up. The gelcoat was cracked around the clamp area. There was one piece that had become detached completely.

Believe me, I wouldn't have spent what i did on the repair if it hadn't been necessary.

If you use a bracket, it will provide some resilience and relieve the pressure on the transom and hopefully spread it somewhat.

I still wouldn't clamp an aux on the transom directly again.

I realise that when you need it, you need it. Current engines are pretty reliable and usually have a limp home mode, just like your car does.
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Old 13 April 2010, 15:04   #14
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Quote:
Originally Posted by JABS View Post
I still wouldn't clamp an aux on the transom directly again.
and after my experience, I would not use a bracket again
not fun trying to get your 9.8 Tohatsu back on baord when it's locked to a bracket half hanging off the back, in a big solent swell

not tried the transom yet, but that's the only way I'll go in future. No reason why it could not also be bolted on is there? I thought even the smaller outboards have bolt points if you wish to use them?
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Old 13 April 2010, 18:00   #15
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Neil,

Maybe you have the answer. Bolt it on and spread the load on the inside with a plate. Make something that is thick enough, maybe 5mm and see how you go.

It could work.

I know where you are coming from. Ours also came loose and, yes, it is a nightmare.

Let us know.
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Old 13 April 2010, 18:35   #16
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Hi,

As other posters have said the best option is to fit it directly on to the transom, which I do with mine, even though mine is a small 2s Yam Malta. I haven't trailered with it on the transom but I guess it should be OK, what I do think is important is to make sure that it has a safety line/chain securing it to the boat.


If the yam hadn't fitted I would have made myself a simple bracket that bolted on to the transom
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Old 13 April 2010, 19:15   #17
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Just a little lateral thinking here, but hang the Aux off the transom on a custom made bracket. But don't store it on the back tilted. Have it mounted upright with a sliding mechanism that can be locked into a retracted position ie: prop out of water. Then you wouldn't be stressing the brackets and transom so much and deployment would be as easy as removing a pin or sliding a bolt back and dropping it down to operational hight.
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Old 14 April 2010, 02:29   #18
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Quote:
Originally Posted by Neil Harvey View Post
and after my experience, I would not use a bracket again
not fun trying to get your 9.8 Tohatsu back on baord when it's locked to a bracket half hanging off the back, in a big solent swell

not tried the transom yet, but that's the only way I'll go in future. No reason why it could not also be bolted on is there? I thought even the smaller outboards have bolt points if you wish to use them?
Mine lives on the bracket mounted to the transom and is secured with clamps and bolts

Jim
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Old 14 April 2010, 13:46   #19
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Quote:
Originally Posted by bedajim View Post
Mine lives on the bracket mounted to the transom and is secured with clamps and bolts

Jim
yeah, but you made yours...
so it's going to be up to the job...
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