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Sole mini 2 diesel

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chrlss88
New member
Username: chrlss88

Post Number: 1
Registered: 12-2008
Posted on Tuesday, December 16, 2008 - 01:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Dear old marine engine fanatics,

Recently I obtained a sailing boat with a 1 cylinder diesel engine. Probably a "solé mini 2" diesel, but I got a manual with it which says it's a Stuart turner engine.

Scouting the internet didn't give me a clear view of the history of this engine. I'm quite sure that it's a sole diesel, b but on some points it differentiates itself (dynastart)...

Can anyone give me some information about the history (make/type) of this engine, and maybe one can tell me what the connection with Stuart Turner is?

I added a picture of the engine


Kind regards,

Christoph Clement
From the Netherlands

E: christophclement@home.nl
1 cylinder 9hp dieselDisconnected from the boatdynastart
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alandowd
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Posted on Monday, April 20, 2009 - 10:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I presume you got an answer before this, but if not, it certainly looks like a Sole Mini to me. I have one in my yacht that looks the same.
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Jörg
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Posted on Tuesday, April 21, 2009 - 03:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

This is a Solé Mini, yes. We have the same model in our boat. The machine is made by Stuart as you write. We have been in contact with Stuart without success.

The machine has a Dynastart which is very expensive to repair. If you need to there is a simple solution. A Bosch agent told us this. But the Dynastart is commonly very reliable.

Do you have problems with leacking oil from the gear box?
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santiago
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Username: santiago

Post Number: 1
Registered: 05-2009
Posted on Saturday, May 16, 2009 - 06:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have 23feet sailing boat with a Sole Mini, and right now I´m repairing a leacking oil problem in the ronim gear box. It´s very probably that I´m gonna need to install a new one...
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chrlss88
New member
Username: chrlss88

Post Number: 2
Registered: 12-2008
Posted on Sunday, May 17, 2009 - 10:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

It's a while ago, but I got the engine running now. It's also installed into the boat. The only problem that is still occurring is that it doesn't deliver enough power.

Symptoms:

-Delivering power till half throttle, after that extra throttle doesn't have any effect.
-When pulling the "extra fuel lever for starting" the engine runs fine with enough power
-Engine is vibrating too much at some engine revs (I know it's a 1 cyl.)

So I thought the fuel injection was too early, so I tried too tune it. Only the problem is I can not find any markings for T.D.C. or injection moment on the flywheel...

Then I delayed the injection moment by means of placing shims under the injection pump randomly, but it even delivered less power.

Does anyone recognize these symptoms?

Greetings, Christoph Clement (Holland)
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johnisole
New member
Username: johnisole

Post Number: 1
Registered: 04-2010
Posted on Wednesday, April 28, 2010 - 01:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have a sole m2 on the bench and am trying to get the filters and gaskets to test it out. Any suggestions on where to find parts? Also any other advice for what should be replaced or inspected while engine is removed...
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davey1000
Member
Username: davey1000

Post Number: 7
Registered: 12-2010
Posted on Monday, September 08, 2014 - 06:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

There are THREE Sole Mini engines from that era. Mini-1, Mini-2 and Mini-3. The Mini-3 is 12HP and is based on a Lombardini air cooled engine of 510 cc.

Stuart used to market these engines as "Stuart" even though they were actually made by Sole of Spain. Good luck! (Yes I know its 6 years too late but with boats a few years soon goes by!)
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davey1000
Member
Username: davey1000

Post Number: 8
Registered: 12-2010
Posted on Monday, September 08, 2014 - 06:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Davey here again! I've just looked in the Clymer "Small Diesel Service Manual" (ISBN-13: 978-0-872888-448-9) Whilst Stuart and Sole are not listed, Lombardini are!

I think that the Lombardini 3LD450 and LDA450 are like the Sole Mini-2. Bore is 85 mm, stroke is 80 mm, displacement 454 cc.

The Lombardini 3LD510 and LDA510 seem to be like the Sole Mini-3. Bore is 85 mm, stroke is 90 mm, displacement is 510 cc.

Note that the Lombardini engines are AIR COOLED however things such as piston-rings, bearings, engine-valves and oil seals should be similar if not identical. The Mini-3 uses Direct Injection so it should be possible to get excellent economy. Note that if an engine is over-propped or if the propeller has barnacles on it the engine will not be able to rev and produce full power. Black smoke may also occur.

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