Durbans Johnsonator outboard motors .

[durban]

Designed Fresh water Cooling system in New Zealand .Decals to follow on cowling , soon

 

[JB]

Re: Durbans Johnsonator outboard motors .

Thinking outside the box, as usual, Durban. I look forward to further details.

 

[steelespike]

Re: Durbans Johnsonator outboard motors .

So is that a powerhead and complete self contained cooling in one shroud?
Do I see a black leg on it?

 

[jbjennings]

Re: Durbans Johnsonator outboard motors .

Is this for saltwater as a preventative measure to corrosion in the powerhead? Radiator in front of cowl?
Looks like a lot of work!
Interesting,
JBJ

 

[durban]

Re: Durbans Johnsonator outboard motors .

Yes the all new JOHNSONATOR OUTBOARD MOTOR , seawater salt preventitive outboard motor running like your car with antifreeze in the cooling system , the black leg you see , i just have to fit the gearbox on , stick the decals on & then ready for sea trials , this will also give us the oppertuneity to test all my other products ive made , some of the blokes on here have been following the threads from durban .http://forums.iboats.com/johnson-evinrude-outboards/durbans-radiator-con-progress-531554.html

 

[nwcove]

Re: Durbans Johnsonator outboard motors .

looks like a tidy setup! does it have a heat exchanger as an extra form of cooling?

 

[durban]

Re: Durbans Johnsonator outboard motors .

no it does not have a heat exchanger certain things where changed & water flow directed to certain areas , no matter how hot the motor gets the water coming out from radiator stays at a constant temp returning to motor the areas that get hot then gets cooled elimination of parts & substituted with non heat condutor materials where used .

 

[durban]

Re: Durbans Johnsonator outboard motors .

as a matter of interest for my family we have done research on the internet but could not find a photo of a completed outboard motor with radiator design , the closest thing we could find was a picture of a diagram some one paitented some where in the USA some where round about 1943 ,
so can my motor go down in the history books ? cause the evidence is with me , thanks

 

[HighTrim]

Re: Durbans Johnsonator outboard motors .

Well Ive never seen one!

Would be interested in a pic with the cowl off, did you have to modify the cowl much to fit?

 

[durban]

Re: Durbans Johnsonator outboard motors .

SO , its qiute possiable this is the first evidence of a outboard motor with a radiator conversion in the world " THE ALL" NEW JOHNSONATOR" this makes me proud to be a great johnson fan & in my eyes the best motors ever made.
the beauty about my design of the cowling is that i kept the original johnson profile of the bottom tray & cowling the tray has been widened to accomodate radiator & the cowling too to siute the original design & profile has been kept , the cowling was made from 2 cowlings cut up modified here & there , & that went for the bottom tray too , the air flow from the radiator fan has carefully been worked out & inaddition to that it also keeps the motor cool too at the rear end the cowling has been modified & motor tray & leg bottom cowling for air to flow .
its given me great satisfaction working on this design for 1 1\2 years now .
will upload some photos later tonight

 

[Faztbullet]

Re: Durbans Johnsonator outboard motors .

as a matter of interest for my family we have done research on the internet but could not find a photo of a completed outboard motor with radiator design

Radiator cooled outboard powerheads have been used for years on different types of equipment such as snowmobiles,helicopters,ultralites,powered parasails,sandrails,dune buggys but never seen one for a marine environment. Will be interesting to see how it cools under a load....
Here is a heli link..
Stierlin RS-40
Link to Johnson 275 hp V-8 in sandrail...
http://www.youtube.com/watch?v=lRKeuHyI0lw

 

[durban]

Re: Durbans Johnsonator outboard motors .

some photos on these sites too
durban ,s 70hp runs with radiator\conversion - The Fishing Website Forums - Page 1
http://www.fishing.net.nz/asp_forums/johnsonator-outboard-motors_topic87643.html

 

[JB]

Re: Durbans Johnsonator outboard motors .

Back in my kart racing days we had a member who adapted a Johnny MQ-10 powerhead for radiator water cooling and used it on his racing kart. It wasn't very competitive but made the most wonderful howl at WOT.

 

[jbjennings]

Re: Durbans Johnsonator outboard motors .

Durban,
Have you run your conversions on a boat at full throttle for any distance yet? Looks like you're having a good time with your hobby and are far more ambitious than I am about trying out your ideas. I only have freshwater to run in and always find that the clutch/gears need replacing before the powerheads do as long as they have oil and stay cool. That saltwater must really be a killer for you to be that serious about keeping it out!
Good luck,
JBJ

 

[durban]

Re: Durbans Johnsonator outboard motors .

no i have not run it on my little boat yet , i however have confidance in what ever i do , one example on this site there is a thread of mine about deflectors , my plan B WORKS , its proved it self over , & over , my rad con gonna work too , i am gonna modify my boat to make it the safest unsinkable boat around , ive already got some ideas in my head , example your car has got a air bag in the front some where when you have a crash now my boat gonna have something like this in it to ,but work in the same way iam not expecting to have a crash , should something happen out at sea i will stay afloat , it will also have a free board deck water tight 4 ,1\2 inches above the water line with sealed containers underneath it too , its only 13 .6 ft gonna make it longer with the transome 1 meter from the aftend forward , something like the rubber ducks they have 2 pontoons & biuld a standup console , with fish hattaches on top of the deck self draining , there will be self draining scuppers in the transome , ive turned 2 boats upside down in the sea before , what saved my life was the freeboard water tight deck ,when i did my skippers ticket rule no 1 if your boat capsizes stay with it sit on the hull
yes iam determined to keep salt water out my motors , ive been to countrys where the density of salt water is more than here in new zealand thus causeing faster corosion over a few year if you dont look after your equiptment ,its all coroded & emptys your pockets

to me its piontless floating around in the sea with a life jacket on if there are great white sharks on the hunt around i feel safer sitting ontop of the hull ....

 

[kodibass]

Re: Durbans Johnsonator outboard motors .

It will work, It MUST work, Why? cause it just looks way to Kooool not to work, can't wait to see the final product ! go durban

 

[durban]

Re: Durbans Johnsonator outboard motors .

just neatened up a few things as the local news papper reporter is comeing to have a chat

iam more proud about my profile on the shape of the cowling cover & tray i made than anything else

 

[kodibass]

Re: Durbans Johnsonator outboard motors .

Outstanding! needs a hood ornament,,,, nothing flashy tho,, you don't want to draw attention "-)

 

[durban]

Re: Durbans Johnsonator outboard motors .

yea , maybe mount a fish head on it , ha. ha , i dont worry about the attension , the pride & the love of working on motors as a hobbie gives me more satisfaction , maybe some one will put it to good use some where in exchange .......? for what ever ,or put it in the maritime museum . cheers

 

[phillnjack2]

Re: Durbans Johnsonator outboard motors .

Just needs a good seatrial now.
the proof is in the pudding.
if this lasts for 1 hour at wot then the engine is a success,if it dont then its will only be some simple to stop it from working.
Very neat and simple engine set up, so no reason why it should not work.
its just a matter of getting the temp right, and that can simply be done by using a thermostate the same temp as
per the original engine to keep running at optimum temp for the outboard.

go for it durban, you know its gonna be perfect


phill