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Author Topic: New Member looking for advice  (Read 9067 times)
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Fair Dink
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« on: September 29, 2008, 06:15:37 PM »

I have a 4 hp Mercury single cylindrer, which I think is early 80's vintage.

I got it about 8 years ago as an auxiliary on a Hartley TS 16, so I suspect it had had little use and its been in my mother's garage for the past 5 years.

Last weekend I tried it out on a 12' molded veneer dinghy I have just aquired.  Construction on the boat started about 25 years ago and it was launched for the first time last week. It has been stored in the rafters of a shed on a cattle property at Armidale for the past 15 years.

The motor starts fine and always has- it overheated once and I had the impellor replaced- the mechanic told me it seems 'rattly' and I should run 25:1 mixture in it.

On Friday it ended up oiling up the plug (der!) so I won't be following that advice anymore.

While running it seemed to drop in revs periodically and need throttle adjustments.  The hull is basically a displacement hull, so 2/3 throttle seems about hull speed. 

I cut the transom down so the cavitation plate just fits under the bottom of the boat and the motor can be turned to 90+ degrees. The transom is plumb so the motor is as upright as it will go- no more trim adjustment.

The motor seems to run better into the chop than with a following current (?)

I also broke the gear selection lever in transit- the motor rolled onto that side- my fault (D'OH!)

I will be using the boat at Classic boat regattas and Wooden Boat Assn "Messabouts" where a tow is always available, but also just to go out for a solo cruise  (yes I'm making a pair of oars)

The serial number is 9592242 and its made in Belgim.

Questions:
1. Can anyone identify the year?
2. It a top end overhaul a good idea (rings, gaskets, maybe piston/gudgeon) or it is better to just run it and see how it goes?
3. Is the motor low enough in the water, or do I need to take more off the transom?
4. Should I be looking at a different prop pitch, or are they horribly dear?

Thanks for any advice you can give.


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MERCMAN
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« Reply #1 on: September 30, 2008, 08:34:23 AM »

G'day Fair Dink,
Welcome to The Board and thank you for your interesting post.
I'll answer your questions in order as posted.
 1. My records cover the older motors. From what I can gather, your 4hp is 
     around the 80's era. I'll have to do some more research for you.
     I believe your motor has an integral fuel tank, correct?
 2. I wouldn't start a project like that unless youv'e fooled around with outboards before. It may be
     rattly 'cause she got hot? Corroded nuts and bolt can be tricky to the uninitiated.
 3. If it were mine, I'd lower her a little more. Displacement hulls tend to lift the stern easily
     under different conditions and load positions, particularly when in reverse. Cavitation will drive
     you crazy.
 4. Little outboards are factory fitted with an all-rounder prop. Unless you are trying to push a yacht
    or a very light weight performance planing hull, the prop you have should be quite fine. I believe
    your motor is fitted with a 3 pladed plastic prop, right?

By the way, 50:1 is the correct fuel/oil ratio. Always ensure you use a quality outboard oils that's rated TCW III, such as "Super Outboard 2T"   http://tectyl.valvolineeurope.com/index.asp?pageid=be621c6bba0c4d13924f9d953339b607
or consult your Mercury dealer for genuine Mercury outboard oil to suit your little motor.
We would love to see some pics.

MERCMAN.
 


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Chair
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« Reply #2 on: September 30, 2008, 08:58:56 AM »

Welcome Fair Dink,
I too would be interested to see the moulded hull. 
Thanks
Chairman
« Last Edit: September 30, 2008, 09:15:16 AM by Chairman » Logged
Fair Dink
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« Reply #3 on: September 30, 2008, 09:21:37 PM »

I am having trouble with the photos Here is the motor


* Mator.JPG (66.89 KB, 800x600 - viewed 408 times.)
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Fair Dink
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« Reply #4 on: September 30, 2008, 09:43:23 PM »

Sorry about that.

I'll get advice on uploading photos.

The prop is alloy, 3 bladed with a rubber bush hub, rather than a shear pin.

Yes, the tank is integral, maybe 3 litres in capacity.

My local dealer had trouble locating the model, but is sure he would need to get the shift lever in and that I would need to remove the powerhead to fit it.

I may look at getting it welded back at a specialist alloy welder- its not under tremendous loads.   
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Fair Dink
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« Reply #5 on: October 05, 2008, 10:27:09 AM »

Her we go again.

I/ve now calmed down enough to retrieve the broken off lever from the bottom of the boat - its plastic, not alloy- a bit like the stuff sauspan handles are made of.  I'll try epoxy with a bit of glass tape, rather than try finding and fitting a new one.

Hopefully there are some photos this time:



IMG]http://i434.photobucket.com/albums/qq61/fairdink/BoatandMotor031.jpg[/IMG]

IMG]http://i434.photobucket.com/albums/qq61/fairdink/BoatandMotor025.jpg[/IMG]
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Fair Dink
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« Reply #6 on: October 05, 2008, 10:50:36 AM »

O.K its one photo at a time, here's the motor:

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Chair
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« Reply #7 on: October 06, 2008, 06:50:05 PM »

Hi Fairdink
Love your boat. Here in Melbourne Mouldcraft made moulded ply boats in the 60s. I owned one myself. Here is a link
http://board.net.au/yabbse/index.php?topic=63.0
I bought a book on building one like yours. Maybe one day
Chairman
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« Reply #8 on: October 07, 2008, 10:38:12 PM »

Hi Fairdink

Your boat is "Fascinating" to say the least, never seen the like mate.

I would imagine that it is VERY lite weight but of solid type construction.

Totally Cool, you are lucky to have it. Unique I would say.

You know the best bit?.........It is not covered in house paint!

Regards

B
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Javelin
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« Reply #9 on: October 08, 2008, 08:08:11 AM »

This is not meant in a derogatory way but - My Mum had a set of bowls that looked like the Mouldcraft...
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Javelin
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« Reply #10 on: October 08, 2008, 12:41:06 PM »

Yeah! 70s stuff. Not very healthy when they became soggy with use. I wouldn't go to sea in one.


* wood_bowls.gif (12.8 KB, 200x141 - viewed 290 times.)
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Fair Dink
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« Reply #11 on: October 08, 2008, 06:44:26 PM »

Actually, its a bit heavier than a salad bowl- 3 plies (at 90 degrees  of course), each about 3-4mm, all held together with WEST epoxy.

There is fair bit of structure under the foredeck and the seats have been filled with foam, so its heavier than I'd like- but it floats quite high.

I am going to extend the rear seat- there's not much room when you have a big bum and are sharing with the motor.  I'm also going for Tas Oak floorboards and abrass rubbing strip down the stem.

Eventually, I,d like to hang a Seagull on the transom, at least for classic regattas, like Bribie Island in May,

Of course the alternative salad bowls are plastic or tin- where's the character?



« Last Edit: October 08, 2008, 10:24:26 PM by Fair Dink » Logged
kevin
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« Reply #12 on: October 09, 2008, 09:06:41 PM »

Can any one help me with information about a Carribean Carousel Runabout tri hull?

It looks a very stable platform but how does it perform on the water?

When were they last manufactured and why did production stop?
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Chair
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« Reply #13 on: October 10, 2008, 07:52:11 AM »

Carousel


* carousel.jpg (15.25 KB, 330x222 - viewed 334 times.)
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Mark S
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« Reply #14 on: October 15, 2008, 02:12:37 PM »

Hi Kevin,
The Caribbean Carousel was made between 1967 and 1971. I think the model just run its course. It wasn't replaced by anything to my knowledge.
It is quite a large boat at 17'7" long and has a beam of 84". Weighs 945 lb. Recommend HP range is 50-135.
Retail price in 1971 was $2075. Looks like quite a fun useable boat. Never been in one, but those twin hulls usually perform very well.
Mark S.
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