RL24, RL28, and RL34 Trailable Yachts
from Rob Legg Yachts

RL Yacht Owner's Discussion Forum

Return to the Forum List

Environmental restrictions RL24
I am looking at replacing my existing 8Hp 2 stroke - is there any restictions on the use of 2 stroke motors in freshwater lakes - the other environmental issue is sewerage - can any person recommend a toilet that will fit within the V bert of a Mark 3 made in WA there appears to be a beam in the hull about 200 mm wide x say 600 mm long
ken7-Dec-2005    Edit    Delete 
Re: Environmental restrictions RL24
We can fit a normal Porta Potti style unit inside without any problem .. easier to take it into the cockpit to use but it can be used inside without too much angst ..
John7-Dec-2005    Edit    Delete 
Re: Environmental restrictions RL24
I can't comment on environmental restrictions in every State of Australia because each waterways' manager has different requirements.

Water used for drinking will involve different restrictions to less important waterways. For example Blue Rock Dam in Victoria limits size and power of boats due to soil errosion at the banks.

American environmental laws are changing to restrict 2 stroke engines. This is confined to America and should not happen in Australia. There is no indication or justification for other countries to follow the American legislation.

If you are using a 2 stroke and wish to minimise its harmful emmisions Castrol Biolube 100 is an excellent oil for the engine at the 100:1 mix instead of the 50:1 mix and it is biodegrabable.

Do a search on outboards any you will find my posts on installing a 5hp Mariner in my RL24. It should be helpful.

Greg 7-Dec-2005    Edit    Delete 
Re: Environmental restrictions RL24
I sail on lake Mulwala on the N.S.W. Victorian border which comes under N.S.W. jurisdiction and various other fresh water venues in central Victoria, and almost all of the boats use 2 stroke outboards, so I don't think there is any such restriction.

R.Earley 8-Dec-2005    Edit    Delete 
Re: Environmental restrictions RL24
Brisbane River Rowing Clubs and Rowing schools now use 4 stroke motors because of noise early in the morning - environmental noise pollution - I believe some water supply places like Wivenhoe Dam has some restrictions
ken8-Dec-2005    Edit    Delete 
Re: Environmental restrictions RL24

I thought the Australian Orbital Engine Company had been contracted to supply their low pressure direct fuel injection units to some of the major USA outboard manufacturers. They said wayback that their fuel injection system was the only one in the world then that could get a 2 stroke engine to comply with the very strict USA emissions legislation. They have company and factory in the USA (shared 50/50 with Seimans VDO) that produces these units for outboards and other engines. Have a look at their web site!

From The Orbital Engine Company of WA website:

Direct Injection Overview

Direct injection (DI) is widely recognised as "next generation" technology that substantially boosts the efficiency of conventional internal combustion gasoline engines. It involves injecting the fuel directly into the cylinder (combustion chamber) of an engine, instead of indirectly through an inlet port in a 4-stroke as would be the case in a port fuel injection (PFI) or carburetor engine.

Orbital's core technology is a unique air-assisted low-pressure direct fuel injection, combustion and engine management system collectively called Orbital Combustion Process (or OCP™) technology. The Orbital DI system creates a precisely-controlled, finely atomised fuel cloud allowing engines to run with greater fuel efficiently and with reduced emissions output.

Applicable to 4-stroke and 2-stroke engines

In production on engines as small as 50cc and as large as 500cc per cylinder

Fuel economy improvement and reduction in emissions

Proven capability

Alastair Russell11-Dec-2005    Edit    Delete 

Return to the Forum List       Add a message to this discussion