New Lehr propane outboard - SailNet Community
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post #1 of 76 Old 03-21-2012 Thread Starter
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New Lehr propane outboard

Others have mentioned this new outboard before but has anyone used one yet?

I just wonder why it wasn't done years ago.
Seems like a simple idea.
Propane fired towmotors have been in use for years.
I it just a standard 4 cycle motor.
The ability to plug in 1 lb can in the cowling is a neat idea.

One pound of propane is equal to about 1/4 gal of gas.
Almost no ignition service required, the plug should last a very long time.
Still has oil and lower unit oil but should require less maintenance.
Should be more reliable as the most starting issues on gas are related to the problems with fuel.

What do you think?
As a bonus for sailboats we can run the outboard off the same fuel as our grill.
So now instead of having to carry diesel, gas and propane we only have to carry two.
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post #2 of 76 Old 03-21-2012
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Re: New Lehr propane outboard

How long do you think a 1 lb canister will last on a 2.5 hp?LEHR - Environmentally Friendly Technology
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post #3 of 76 Old 03-21-2012
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Re: New Lehr propane outboard

I really like the idea of the portability and ease of screwing in a tank or a remote tank that doesn't smell or leak. Most of the time we pack up the outboarrd and use it a total of maybe 45 minutes over a weekend. Maybe not for the long haul cruisers but for weekenders I think it's a good innovation.
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post #4 of 76 Old 03-21-2012
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Re: New Lehr propane outboard

Plenty of warehouse equipment (forklifts, etc) that aren't electric have been running propane for ages, so there's no reason why it couldn't work here. Economy and power may not be as good, but there's certainly a convenience factor, and in this case the propane is literally 'off the boat' unlike a stove as long as the outboard is not in a well.

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post #5 of 76 Old 03-21-2012
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Re: New Lehr propane outboard

To me the benefit is more the preventing of the problems related to gas for the outboard. Since I don't use my outboard that much the gas goes bad and I can not really rely of the damn thing.
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post #6 of 76 Old 03-22-2012 Thread Starter
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Re: New Lehr propane outboard

Quote:
Originally Posted by elvishessler View Post
How long do you think a 1 lb canister will last on a 2.5 hp?LEHR - Environmentally Friendly Technology
don't quote me but I believe the salesman said on full throttle the 1 lb was good for about 45 min but backed off to 3/4 throttle it was good for a couple of hours.

I do remember the 1/4 gal of gas per 1 lb of propane ratio.
So whatever you would get out of a 1/4 gal of gas.

A spare 1lb would be easy to carry.
If you have to do serious motoring you can get any size you want same as for the grill or even use the grill tank.

I'm having a hard time finding any serious downsides.
I checked the price and there is a premium of about $130 for the 2.5 model.

Last edited by davidpm; 03-22-2012 at 12:51 AM.
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post #7 of 76 Old 03-22-2012
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Re: New Lehr propane outboard

davidpm asked "I just wonder why it wasn't done years ago."

I did in 2009. Been working fine since William L. 's Site - PROPANE OUTBOARD PROJECT

Happy to answer any questions
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post #8 of 76 Old 03-23-2012 Thread Starter
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Re: New Lehr propane outboard

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Originally Posted by wlbutts View Post
davidpm asked "I just wonder why it wasn't done years ago."

I did in 2009. Been working fine since William L. 's Site - PROPANE OUTBOARD PROJECT

Happy to answer any questions
Neat project.
do you see anything the commercial product did that you were not able to to.

Do you refill your 1 lb bottles?
do you freeze them first?
what weight do you fill them to?
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post #9 of 76 Old 03-23-2012
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Re: New Lehr propane outboard

nice not eto have to carry a gas can on board and the mess of filling the outboard tank. carry a few spare bottles in the dingy if it runs out.
doesn't a propane powered engine require a more frequent oil changes do to the propane causing thickening of the oil?

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post #10 of 76 Old 03-23-2012
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Re: New Lehr propane outboard

The 64 million dollar question is who built it and there keeping that quite

They even have defender selling the stuff right now and there is NO dealer service/parts network

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