| Author |
Message |
    
iom
New member
Username: iom
Post Number: 1
Registered: 11-2004
| | Posted on Tuesday, November 23, 2004 - 01:36 pm: | 
|
We run a fleet (12) boats on the man made lake in our park and as you might expect with a two stroke engine the lake becomes oily. One day we will have to address the problem and would appreciate any suggestions. A picture of the park is available at www.onchan.org.im |
peterogborne
Senior Member
Username: peterogborne
Post Number: 217
Registered: 09-2002
| | Posted on Tuesday, November 23, 2004 - 07:36 pm: |
|
If you are running your engines with the cooling water exiting through the exhaust then the first step would be to divert the water straight over the side and not through the exhaust. Make sure that your exhaust pipe is not in the water . You will get a few dribbles of oil into the lake but most of it should go up in smoke.
For the enviroments sake you could convert all your craft to 4 cycle engines ,better still go electric! |
NHH
Visitor
| | Posted on Wednesday, November 24, 2004 - 04:40 am: |
|
Definitely separate exhaust from cooling water oulet, if possible siting it such that any oil drips do not end up in the water. As for replacing the units, I assume as you have chosen to post here that your boats are fitted with Stuart Turner R4MC engines and it would be a real shame to see yet another fleet converted to nasty little outboards - an S-T engined fleet should be a tourist attraction in its own right! |
peterogborne
Senior Member
Username: peterogborne
Post Number: 218
Registered: 09-2002
| | Posted on Wednesday, November 24, 2004 - 06:38 am: |
|
I would suggest that you look at water treatment of your lake. Some sort of pump system to skim the surface and filter before it is returned.
If you are running Stuart Turner two stroke engines you are using '' Old Technology''.All very nice but the down side is a very polluting engine.
Note my Stuart Turner engines P5 ,P55 and R3m are all just for rallying. I do have a second P55 that one day will back into a wooden boat.
As a thought have a look at the type of skimmer box used on swimming pools and a simple sand filter....there again i dont know the size of your ''Lake'' |
kent_smith
Member
Username: kent_smith
Post Number: 5
Registered: 10-2004
| | Posted on Wednesday, November 24, 2004 - 07:51 am: |
|
You could also try a fuel conditioner and engine treatment. A friend of mine runs a P66 Stuart Turner in an old 16' clinker. Although the engine ran well, the stern of his boat was always covered in a lot of black grime from the exhaust outlet after each run, even a short run, but this problem has been virtually been eliminated after he used an Australian made fuel conditioner called Centron 11. After treating the engine and fuel he recently took the boat on a long run across the lakes. After five hours running he had no black grime at all on the stern of his boat and the exhaust smoke was also virtually eliminated.
I decide to try some in my Stuart R3M. At this point have just given the engine the intial combustion chamber treatment and added the fuel conditioner. I have only given the engine about 15 minutes running, but even after this short time the exhaust emissions are already noticably cleaner and the engine running and idling much better. It is recommended for all engines, but seems to be especially benefical for older engines including two strokes.
Treatment consists of an engine treatment material (2 X 120ml one off treatment for a small engine) and a A and B fuel conditioner. The A is a 120ml one off treatment in a tank of fuel and then the B added at a rate of about 5ml to 4 litres of fuel on an ongoing basis.
The fuel conditioner claims to reduce carbon deposits and improve performance by coating the carburettor, fuel pump and injectors with PTFE extending the fuel burn period.
There may be a UK agent for this product or alternatively another similar product available in the UK. |
Carolina Sid
Visitor
| | Posted on Wednesday, November 24, 2004 - 08:30 am: |
|
Alternatively just add a dash of snake oil ;-) |
andrew
Moderator
Username: andrew
Post Number: 978
Registered: 11-2001
| | Posted on Wednesday, November 24, 2004 - 09:26 am: |
|
Here are links from the Onchan site that show pictues of the boats and lake (I think...)
http://www.onchan.org.im/onchan_park/park_assets/pages/boating_jpg.php
http://www.onchan.org.im/onchan_park/park_assets/pages/by_the_lake_jpg.php |
kent_smith
Member
Username: kent_smith
Post Number: 6
Registered: 10-2004
| | Posted on Thursday, November 25, 2004 - 08:50 pm: |
|
I can understand Carolina Sids scepticism, but can only reiterate that our experience with an engine treatment and fuel conditioner has been worthwhile, with reduced exhaust discharge and smoother running. |
Carolina Sid
Visitor
| | Posted on Friday, November 26, 2004 - 06:12 am: |
|
Just teasing ;-) There have been so many of these pills and potions marketed over the years, if you have found one which actually works then good on yer!
Like NHH said though, it would be a real shame to convert this fleet to modern engines - you wouldn't stick a Nissan engine in your vintage Bentley just because it was kinder to the environment. |
David Pickop
Visitor
| | Posted on Monday, November 29, 2004 - 09:37 am: |
|
If you are running the Stuart engines you really could do with as previous messages suggest run a dry exhaust system as the engines do not like any back pressure from a water cooled system
we have the correct measurements for what the exhaust sizes should be |
peterogborne
Senior Member
Username: peterogborne
Post Number: 219
Registered: 09-2002
| | Posted on Monday, November 29, 2004 - 05:31 pm: |
|
Lets face it .....they are running engines with water cooled exhausts . The oil carry over is going into the lake water.If they want to retain the fleet of S/T boats the solution is to remove the oil from the surface of the water . If they are serious then surface skimming is the answer. I dont think we are talking about the ''Great Lakes '' here ....just a pond .So to fit out a surface skiming pump and sand filter is no great engineering feat. |
