Dinghy Power Advice - Lehr Propane OB?

Feb 26, 2004
23,047
Catalina 34 224 Maple Bay, BC, Canada
Because even little diesel engines are heavy. BTW, they do, but I'm not sure how little. :) Also, consider starting a diesel. Because they use compression, not electricity, for operation, pull starts are not favored, so a battery for a starter is needed.
 
Nov 14, 2013
238
Catalina 30 MkI 1983 TRBS Westbrook, CT
My .02 we have an Achilles very similar to that I believe, floor boards and an inflatable keel. We have an older Johnson, 2 stroke 5hp and it barely gets on plane with just me in the thing, anything else, dog, wife, etc. no way. I looked at the Lehr propanes and to my mind the biggest advantage is clean handling, not the exhaust, but the fact that you don't have a gas tank to fill, and potential spill, was the plus for me. But as others said I read some really poor reviews. When I replace this motor I'm going with the smallest, lightest motor I can find.
 
Jun 14, 2010
307
Seafarer 29 Oologah, OK
So many people critical of oil, gas, and coal until they have to push, pull, walk, row--or carry something heavy very far. In the words of my favorite author, Samuel Eliot Morison: "Motor transport is responsible for many ills, but it certainly has saved the world an enormous amount of equine, even human misery." ... "A frequent sight in winter was that of a horse falling down in harness, through slipping or sheer exhaustion; and I recall one occasion when a driver was whipping an animal that was prostrate in the snow to make him get up." (One Boy's Boston, 1887-1901).
Hence the expression, "beating a dead horse."
Sorry, I know, off topic.
 

capta

.
Jun 4, 2009
4,935
Pearson 530 Admiralty Bay, Bequia SVG
I can't imagine a more expensive and inconvenient fuel to power a dinghy. Maybe there is one, but I can't think of it. It's not like you could get that fuel at any gas station or fuel dock, if you happened to run out.
 
Oct 30, 2011
542
klidescope 30t norfolk
All the little diesel engines look like lawn mower engines stuck on top a outboard
 

Rick D

.
Jun 14, 2008
7,186
Hunter Legend 40.5 Shoreline Marina Long Beach CA
Diesel has more energy than gas why don't they make little diesel outboards
They used to. Italian. However, no market in the USA and heavy. and, then there is that pesky emissions rule. There are some larger ones, Yanmar powered as I recall.
http://www.mercuryracing.com/optimax-diesel-reporting-for-duty/
http://www.boatingmag.com/yanmar-re-enters-diesel-outboard-motor-market
http://www.mby.com/gear/200hp-diesel-outboard-42024
http://www.mby.com/gear/200hp-diesel-outboard-42024

http://www.klaxondieseloutboardmotors.com/

 
Nov 30, 2015
1,343
Hunter 1978 H30 Cherubini, Treman Marina, Ithaca, NY
I suppose I should have stated earlier in this thread the term Eco-friendlier, rather than just Eco-Friendly. Apparently the subject matter brings out the Enviro-nuts. I wanna be a participant in what ever recent technology may find its way to the consumer and don't have enough life to figure out what's best. I can assure you however that this is not what I want, OK?

image.jpeg
 
Last edited:

Johann

.
Jun 3, 2004
513
Leopard 39 Pensacola
I suppose I should have stated earlier in this thread the term Eco-friendlier, rather than just Eco-Friendly. Apparently the subject matter brings out the Enviro-nuts. I wanna be a participant in what ever recent technology may find its way to the consumer and don't have enough life to figure out what's best. I can assure you however that this is not what I want, OK?

View attachment 124445
Well each unique situation and set of requirements will have its own solution. I'm sure the solar trolling motor dinghy is right for someone. In your case (a non cruiser on a lake) propane would seem ideal. Especially if you are worried about fuel spills in the marina. But with your desire to plane for supplies, it seams a larger motor would be needed. Lehr makes a 9.9 now I think. Is that too heavy for you?
 
  • Like
Likes: BlowMeAway
Nov 30, 2015
1,343
Hunter 1978 H30 Cherubini, Treman Marina, Ithaca, NY
Well each unique situation and set of requirements will have its own solution.
Thanks Johann, finally somebody get's our situation. The Lehr 9.9 is on the list, not too heavy for me, but a little pricey, and there's not many used propane motors out there of that size. I'm pretty sold on the 5 HP model...at least for this year. Appreciate your commentary and compromise is the answer.
 
Sep 25, 2008
1,096
CS 30 Toronto
Have a 2-hp 4 stroke Honda air-cooled OB. Won't go on plane and noisy but easy on maintenance, like almost none. Just like a lawn mover with a prop.
Highly reliable, always starts on the 1st pull. I can even lift it up with my bad elbow.
Runs forever with a small plastic tank.
 
Nov 14, 2013
238
Catalina 30 MkI 1983 TRBS Westbrook, CT
Well each unique situation and set of requirements will have its own solution. I'm sure the solar trolling motor dinghy is right for someone. In your case (a non cruiser on a lake) propane would seem ideal. Especially if you are worried about fuel spills in the marina. But with your desire to plane for supplies, it seams a larger motor would be needed. Lehr makes a 9.9 now I think. Is that too heavy for you?
I'll second the larger motor suggestion. As I said above we have a similar dink with a 5 hp 2 stroke and it is a real struggle to get on plane.
 

Johann

.
Jun 3, 2004
513
Leopard 39 Pensacola
I'll second the larger motor suggestion. As I said above we have a similar dink with a 5 hp 2 stroke and it is a real struggle to get on plane.
Just curious, have u tried a hydrofoil or high thrust prop? I have the doelfin on my 9.8 and it does well getting on plane heavily loaded where it struggled before.
 
Nov 14, 2013
238
Catalina 30 MkI 1983 TRBS Westbrook, CT
Just curious, have u tried a hydrofoil or high thrust prop? I have the doelfin on my 9.8 and it does well getting on plane heavily loaded where it struggled before.
I have not as getting on plane is not that important to me, we travel fairly short distances and are in no hurry. The OP stated he is interested in getting on plane. Myself, as I said above, when we replace this motor we're going with the smallest, lightest OB we can find.