Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-11-2013, 23:40   #76
Registered User
 
Shas Cho's Avatar

Join Date: Nov 2013
Location: Near Vancouver
Posts: 103
Re: Lehr Propane Outboards

Quote:
Originally Posted by nimblemotors View Post
Wind it up, then release. I'm really surprised lawm mowers and small outboards don't have such a system


I had a lawn mower in the late '60s or early '70s
with exactly that kind of starter.
It was an off-brand machine
(probably Ronco or K-Tel :=)
which may explain why the concept didn't catch on.
But it sounds like an idea with great potential for 5-15hp outboards.

HopCar, maybe you can pass the idea along to Lehr...?
__________________

__________________
Shas Cho is offline   Reply With Quote
Old 11-11-2013, 09:13   #77
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,165
Re: Lehr Propane Outboards

Funny this thread just came back to life. We received an order for a manual start 9.9 about two weeks ago. I oiled it up, put it in the test tank, bled the air and gave it a yank. It was hard to pull just like LibreVie described. I pulled it three times and gave up. I had the big guy who we call Bear pull it a few times, still no go. Our outboard mechanic saw me playing with it and suggested starting fluid. It fired and ran fine with a squirt of starting fluid. I richened the fuel mixture and now it starts right up and purrs like a kitten. It's still takes a good pull to get it over compression.

I had some conversations with Dave the engineer at Lehr. I think the problem with the hard pull is caused by the lack of a compression release on the 9.9. I put a spring scale on the handle and slowly pulled it over compression. It took 45 pounds of effort. I tried this with a 5 hp and it took either 10 or 20 pounds of effort. I understand that the 5 has a compression release which would explain the two readings.

At this time I would buy a 9.9 manual for my self but I wouldn't recommend it for a woman. If you're interested in one, go to your dealer, have him put one in the tank and let you start it. There are a lot of people out there who are happy with them but I think the hard pull is an issue for smaller people. Of course there is the electric start with the tiny lithium battery under the hood, Nice!

I'm planning to put a 15 Lehr on a little plywood skiff I'm building.
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 11-11-2013, 09:18   #78
Senior Cruiser
 
Roy M's Avatar

Cruisers Forum Supporter

Join Date: Feb 2007
Location: Southwestern Yacht Club, San Diego, CA
Boat: Searunner 40 trimaran, WILDERNESS
Posts: 3,042
Images: 4
Re: Lehr Propane Outboards

HopCar, has the lithium battery starter actually come out yet, or is it still an idea? By the way, thank you for all of your excellent info and assistance with this new product.
__________________
Roy M is offline   Reply With Quote
Old 11-11-2013, 09:32   #79
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,165
Re: Lehr Propane Outboards

Roy, I'm not sure. I asked Lehr about that and was told that the distributer I buy from hasn't ordered any. I'm not sure if that means they won't produce them until they get orders or if they've got them in their California warehouse and the East coast warehouse just didn't bring any over. They are pricey. I think it adds about $300 dollars over the cost of a standard electric start.

The lithium starter system is more than an idea. I played with the prototype at the boat show">Miami boat show last year. It works and works well.
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 11-11-2013, 09:45   #80
Senior Cruiser
 
Roy M's Avatar

Cruisers Forum Supporter

Join Date: Feb 2007
Location: Southwestern Yacht Club, San Diego, CA
Boat: Searunner 40 trimaran, WILDERNESS
Posts: 3,042
Images: 4
Re: Lehr Propane Outboards

Thanks! I'll ask around to see if they are available in San Diego.
__________________
Roy M is offline   Reply With Quote
Old 11-11-2013, 19:38   #81
Registered User

Join Date: Jul 2013
Location: Usually South Florida these days
Posts: 825
Re: Lehr Propane Outboards

What HP sizes offer the Li option?

Is that battery somehow mounted inside the cowling? Or is in an external battery?

Thanks,
Jim
__________________
pbiJim is offline   Reply With Quote
Old 11-11-2013, 21:58   #82
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,165
Re: Lehr Propane Outboards

Jim, the Li battery is mounted inside the engine cowling. As I recall it was about the size of two Altoid boxes stacked. At this time only the 9.9 has an electric start option so that was the only one with the Li option. The one I saw was a demo model at the Miami boat show last February. It spun that engine many times before it needed recharging. The engine recharges it while it's running.

Before you ask, I don't know if you need a special charger if it is off the engine.
I don't know if you could run accessories such as lights off it.

If they offer it on the 15, I may go for the Li option. I don't think there was a lot of interest in it as all you need is a fifty dollar motor cycle battery and a few feet of cable for the regular electric start system, but the Li sure is a clean installation on a small boat.

I'll try to get you guys some more info on it tomorrow. Any more questions for Lehr?
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 12-11-2013, 09:16   #83
Senior Cruiser
 
Roy M's Avatar

Cruisers Forum Supporter

Join Date: Feb 2007
Location: Southwestern Yacht Club, San Diego, CA
Boat: Searunner 40 trimaran, WILDERNESS
Posts: 3,042
Images: 4
Re: Lehr Propane Outboards

HopCar, can you ask them what the expected fuel consumption at WOT the 15 might be? And, if they think the summer debut is still on?
__________________
Roy M is offline   Reply With Quote
Old 13-11-2013, 06:03   #84
Registered User

Join Date: Jul 2013
Location: Usually South Florida these days
Posts: 825
Re: Lehr Propane Outboards

Not a question, but a comment here, I think that the LI battery option would be the most attractive in conjunction with a motor that uses the little 1 pound cylinders. If they could put that little LI starter on their 5hp, it would be a nice little ready-to-go package for a dink, that is easily removable.

It would also be a nice option for some class racing boats like a J-24, where class rules state that you must carry a motor on board during a race (for safety reasons). Those motors are typically carried stowed. Gas engines are not preferred due to the mess & the stink. The little 1 pound bottle would probably meet the class minimum of 1 liter of fuel.
__________________
pbiJim is offline   Reply With Quote
Old 13-11-2013, 08:44   #85
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,165
Re: Lehr Propane Outboards

Roy, They all seem to use about 0.4 pounds of propane per hour per horsepower. I would expect the 15 to burn about 6 pounds (1.5 gallons) per hour at wide open throttle.

Jim, the 5.0 Lehr is so easy to start, you really don't need electric start on it. The electric starter would also add a few pounds. I don't think there would be enough demand to justify producing it.

"It would also be a nice option for some class racing boats like a J-24, where class rules state that you must carry a motor on board during a race (for safety reasons). Those motors are typically carried stowed. Gas engines are not preferred due to the mess & the stink. The little 1 pound bottle would probably meet the class minimum of 1 liter of fuel."

You're absolutely right. A propane powered engine would be ideal for that. Propane solves a lot of problems in a situation where the engine is stowed and rarely used.
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 13-11-2013, 09:21   #86
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 17,072
Re: Lehr Propane Outboards

The wind up starter thing came from airplanes long ago, you can see it in action on some old movies, there were two ways I think, one was a flywheel and the other an actual wind up kind of spring, but the best was the shot gun cartridge starter. Imagine that on an outboard
__________________
a64pilot is offline   Reply With Quote
Old 22-11-2013, 18:33   #87
Registered User
 
DainyRays's Avatar

Join Date: Aug 2013
Location: Annapolis, Maryland
Boat: C&C 38 Landfall (1983 vintage)
Posts: 35
I am seriously considering a 5HP Lehr to power an Apex A9 Lite RIB. I wish there was some way of determining ahead of a purchase if 5hP would allow this dinghy to plane with 2 people. The dinghy is light (89 lbs) and the motor is light (49 lbs) and with only 2 people it would be at about 1/2 max payload. Any ideas how I could figure this out?
__________________
Bob
s/v Rainy Days
Annapolis, Maryland
DainyRays is offline   Reply With Quote
Old 22-11-2013, 22:07   #88
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,165
Re: Lehr Propane Outboards

Bob, bring the dinghy to Miami and we'll try it!
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 22-11-2013, 22:08   #89
Senior Cruiser
 
Roy M's Avatar

Cruisers Forum Supporter

Join Date: Feb 2007
Location: Southwestern Yacht Club, San Diego, CA
Boat: Searunner 40 trimaran, WILDERNESS
Posts: 3,042
Images: 4
Re: Lehr Propane Outboards

Horsepower is horsepower, regardless of the fuel. Borrow a five HP gas engine and see if it works for you. I needed a 9.9 to get two of us on a plane in a Zodiac with soft floor.
__________________
Roy M is offline   Reply With Quote
Old 23-11-2013, 06:15   #90
Registered User
 
ranger42c's Avatar

Join Date: Aug 2012
Location: Maryland, USA
Boat: 42' Sportfish
Posts: 2,985
Re: Lehr Propane Outboards

Quote:
Originally Posted by DainyRays View Post
I am seriously considering a 5HP Lehr to power an Apex A9 Lite RIB. I wish there was some way of determining ahead of a purchase if 5hP would allow this dinghy to plane with 2 people. The dinghy is light (89 lbs) and the motor is light (49 lbs) and with only 2 people it would be at about 1/2 max payload. Any ideas how I could figure this out?

Do you know the recommended min and max horsepower recommendations for that RIB?

Our RIB weighs 135-lbs, the 5-HP motor we use (for now) weighs 46-lbs, min recommended HP is 10, max is 15...

And 5 HP doesn't often plane the boat, with just me and the First Mutt in it (him acting as hood ornament).

The situation is different from that Apex, but the manufacturer's recommendation is likely on target.

-Chris
__________________

__________________
Selby Bay, South River, Chesapeake Bay, USA.
ranger42c is offline   Reply With Quote
Reply

Tags
propane

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lehr Propane outboard: horizontal tank? liquid propane? ngermain Engines and Propulsion Systems 79 18-08-2014 17:06
The Science of Propane Safety Delancey Health, Safety & Related Gear 46 14-12-2012 10:57
Lehr Propane Outboard At West Marine onestepcsy37 Engines and Propulsion Systems 6 07-11-2012 21:50
Alternative Propane Storage unbusted67 Plumbing Systems and Fixtures 27 28-09-2011 23:35



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:16.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.