![Reply](/forum/images/sk/buttons/reply.gif) |
13 April 2010, 10:08
|
#1
|
Member
Country: UK - N Ireland
Town: Portrush
Boat name: G'Noah
Make: Redbay
Length: 6m +
Engine: outboard petrol 225
Join Date: Sep 2009
Posts: 26
|
Aux Engine Bracket Recommendation
Hi All,
I am planning to put a 6hp Yam 4stroke LS on my Redbay 6.5m. Can anyone recommend from experience which type/make of bracket to use?
eg. Spring loaded etc
rgds
Gareth
__________________
|
|
|
13 April 2010, 10:27
|
#2
|
RIBnet supporter
Country: UK - England
Town: Dinard, Brittany
Boat name: Into the Red
Make: Osprey Vipermax
Length: 7m +
Engine: Evinrude E-tec 250HO
MMSI: 235 076 114
Join Date: Apr 2009
Posts: 1,957
|
Quote:
Originally Posted by westerlystorm
Hi All,
I am planning to put a 6hp Yam 4stroke LS on my Redbay 6.5m. Can anyone recommend from experience which type/make of bracket to use?
eg. Spring loaded etc
rgds
Gareth
|
From reading on here and elsewhere I'm sure you will gather that in a rib, there arn't really any manufactured brackets that are up to the banging and crashing of a rib, even more so since you plan to put a hefty four stroker on it. As far as I'm aware the best, in fact only way to do it is get one welded up yourself, otherwise it#ll never be strong enough
Regards, Gotchi
__________________
|
|
|
13 April 2010, 10:34
|
#3
|
Member
Country: UK - England
Town: Norfolk/Suffolk Borders
Make: no boat
Length: no boat
Join Date: Oct 2002
Posts: 882
|
I would second Gotchi's comment .
I suspect that directly onto the transom is the only way to go .
__________________
|
|
|
13 April 2010, 11:14
|
#4
|
Member
Country: UK - England
Town: Bursledon
Boat name: Mustard
Make: Ribeye 785
Length: 7m +
Engine: Yamaha 200/Merc 6
MMSI: 235068693
Join Date: Oct 2006
Posts: 618
|
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.
__________________
Tony
|
|
|
13 April 2010, 11:21
|
#5
|
Member
Country: UK - England
Town: New Milton
Boat name: Jianna
Make: Osprey
Length: 6m +
Engine: 200 E-TEC
MMSI: 235076954
Join Date: Sep 2004
Posts: 1,940
|
Quote:
Originally Posted by JABS
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.
|
But four strokes have to be carried upright
__________________
Ian
Dust creation specialist
|
|
|
13 April 2010, 11:25
|
#6
|
Member
Country: UK - England
Town: Bursledon
Boat name: Mustard
Make: Ribeye 785
Length: 7m +
Engine: Yamaha 200/Merc 6
MMSI: 235068693
Join Date: Oct 2006
Posts: 618
|
Not a Mercury 6HP. On a specific side, yes.
__________________
Tony
|
|
|
13 April 2010, 11:27
|
#7
|
Member
Country: UK - England
Town: New Milton
Boat name: Jianna
Make: Osprey
Length: 6m +
Engine: 200 E-TEC
MMSI: 235076954
Join Date: Sep 2004
Posts: 1,940
|
So is that just the 6HP, or are there others that can be stored/carried flat?
__________________
Ian
Dust creation specialist
|
|
|
13 April 2010, 11:32
|
#8
|
Member
Country: UK - England
Town: Norfolk/Suffolk Borders
Make: no boat
Length: no boat
Join Date: Oct 2002
Posts: 882
|
It's all very well carrying it on board , but chances are that you'll need it ( quickly ) under unfavourable conditions !
Transom for me every time
__________________
|
|
|
13 April 2010, 11:58
|
#9
|
RIBnet supporter
Country: UK - England
Town: Rutland
Length: no boat
Join Date: May 2006
Posts: 2,500
|
Quote:
Originally Posted by gotchiguy
From reading on here and elsewhere I'm sure you will gather that in a rib, there arn't really any manufactured brackets that are up to the banging and crashing of a rib, even more so since you plan to put a hefty four stroker on it. As far as I'm aware the best, in fact only way to do it is get one welded up yourself, otherwise it#ll never be strong enough
Regards, Gotchi
|
Yes I've never seen or used one that's up to the job and so I had one fabricated
__________________
|
|
|
13 April 2010, 15:40
|
#10
|
Member
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
|
A buddy of mine used 4 different kicker brackets on his 17' Boston Whaler (which has a rougher ride than most RIBs, I think.) None of them lasted more than a season and a half without having to be repaired.
I get around that by not having a kicker.
If you find something that lasts, let the rest of us know...
jky
__________________
|
|
|
13 April 2010, 17:18
|
#11
|
Member
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 70hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 4,607
|
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.
__________________
|
|
|
13 April 2010, 17:21
|
#12
|
Member
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
MMSI: TBC
Join Date: Dec 2006
Posts: 4,021
|
Quote:
Originally Posted by JABS
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.
__________________
---------------------------------------------------
Chris Stevens
Born fiddler
|
|
|
13 April 2010, 18:26
|
#13
|
Member
Country: UK - England
Town: Bursledon
Boat name: Mustard
Make: Ribeye 785
Length: 7m +
Engine: Yamaha 200/Merc 6
MMSI: 235068693
Join Date: Oct 2006
Posts: 618
|
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.
__________________
Tony
|
|
|
13 April 2010, 19:04
|
#14
|
Member
Country: UK - England
Town: Enfield/Switzerland
Boat name: Zonneschijn II/Vixen
Make: Shakespeare/Avon
Length: 7m +
Engine: Evin' 175 DI /Yam 90
MMSI: 235055605
Join Date: May 2006
Posts: 1,436
|
Quote:
Originally Posted by JABS
I still wouldn't clamp an aux on the transom directly again.
|
and after my experience, I would not use a bracket again ![roll eyes](https://www.rib.net/forum/images/smilies/rolleyes.gif)
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?
__________________
|
|
|
13 April 2010, 22:00
|
#15
|
Member
Country: UK - England
Town: Bursledon
Boat name: Mustard
Make: Ribeye 785
Length: 7m +
Engine: Yamaha 200/Merc 6
MMSI: 235068693
Join Date: Oct 2006
Posts: 618
|
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.
__________________
Tony
|
|
|
13 April 2010, 22:35
|
#16
|
Member
Country: UK - England
Town: bedford
Make: tornado
Length: 5m +
Engine: outboard 60hp merc
Join Date: Oct 2007
Posts: 333
|
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
DaveJ
__________________
|
|
|
13 April 2010, 23:15
|
#17
|
Member
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,866
|
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.
__________________
Andy
Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
|
|
|
14 April 2010, 06:29
|
#18
|
RIBnet supporter
Country: UK - England
Town: Rutland
Length: no boat
Join Date: May 2006
Posts: 2,500
|
Quote:
Originally Posted by Neil Harvey
and after my experience, I would not use a bracket again ![roll eyes](https://www.rib.net/forum/images/smilies/rolleyes.gif)
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
__________________
|
|
|
14 April 2010, 17:46
|
#19
|
Member
Country: UK - England
Town: Enfield/Switzerland
Boat name: Zonneschijn II/Vixen
Make: Shakespeare/Avon
Length: 7m +
Engine: Evin' 175 DI /Yam 90
MMSI: 235055605
Join Date: May 2006
Posts: 1,436
|
Quote:
Originally Posted by bedajim
Mine lives on the bracket mounted to the transom and is secured with clamps and bolts
Jim
|
yeah, but you made yours... ![thumbs up](https://www.rib.net/forum/images/smilies/thumbs.gif)
so it's going to be up to the job...
__________________
|
|
|
![Reply](/forum/images/sk/buttons/reply.gif) |
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|