Volvo Penta 40 / Archimides 40 / Solo 40. German engine manual/help

[Craspo]

Hello I am new to the forum and I am looking for help. I have recently acquired one of this engines in ok shape, the Volvo Penta branding. It has been neglected for some years and I wanted to give some life back to it. When opened the carburetor (Bing 62/14/108) I realized that the main chicle (Main jet) was missing (I have no idea how this happened, but it gives me an idea on why it was neglected)
I am in need to get the manual to get the chicle size to be able to make it work again.
and also I would like to know the oil ratio for this engine or at least what is the usual ratio for this kind of engine, after some research I was able to find online that they use 50:1 for the "39" model so I am guessing that would be the case?.
Also having the manual could not hurt me since it looks like I have some more maintenance to do on it.

P.S: Maybe someone also knows where to get spare part for this engine?

Thanks for your time!

 

[Craspo]

Hello mmasco, first, thanks for replying!
Luckily I was able to find the measures, the measure it is 72, I was able to find it thanks to a forum that led me to an abandoned Bing web page with a lot of info, I will attach the page for future reference maybe works for you or someone else.
Regarding your question, there is no carburetor on the engine right now so I can easily take a picture for you. Here they are attached, The piece N~38 is symmetrical on both sides where the metal flaps are.
I realized I did not take a picture of the O ring, it is a regular O-ring, nothing special, only mine it is a little bit flat for so many years.
Let me know if you need a clearer picture or an image of something else.
How much do you use in oil proportion? 50:1?
Cheers

Attachments

 

[mmasco]

Oil-Fuel ratio : 1:50, Original spark plug: Bosh W145 T1, replacement NGK B5HS, Iridium version (recomended) Denso IWF16
This motor was never sold under the Archimedes 40 brand, but was sold under the Cruise 'n Carry 6800 brand.

Spare parts are available in American stores (look for Cruise 'n Carry 6800), I recently saw the carburetor assembled. Also, the Solo Kleinmotoren company is still alive and some suitable spare parts (for chainsaws and lawn mowers) can be bought there.


I would be very grateful if you would pull out part number 10 (gasket?) and photograph it in more detail from all sides.

I’ll give you one of my quotes from the history of this motor, in case you find it interesting.

Solo 40 and Volvo-Penta 40 are the same motor. There was also a version of this engine for the USA called Cruise 'n Carry 6800, and this one is slightly different, it has a gear shift. In general, the history of these motors is very interesting. A Hawaiian canoe rental company decided to make ultra-light motors for its boats. They opened their own division named HMC (Hawaiian Motor Company) and began development, but they did not get beyond the main drive and decided to order the engines themselves from other companies, manufacturers of light chainsaws. At first they worked with the Japanese company Shindaiwa (Cruise 'n Carry 6500-6700 engines) then they probably quarreled and switched to SOLO Kleinmotoren (Cruise 'n Carry 6800), but it looks like they weren’t doing well with SOLOs either. After they separated, SOLO tried to sell these motors under their own brand and under the Volvo-Penta brand, and apparently, due to patent restrictions on the design of the main drive, they had to remove the gear shift in these versions. Something like this

 

[mmasco]

To moderator: Could you please explain the reason why you are deleting my messages or removing links to documentation files from them?

To Craspo: I have re-sent you the promised documentation by email (address extracted from your g-drive account).

 

[Craspo]

Oil-Fuel ratio : 1:50, Original spark plug: Bosh W145 T1, replacement NGK B5HS, Iridium version (recomended) Denso IWF16
This motor was never sold under the Archimedes 40 brand, but was sold under the Cruise 'n Carry 6800 brand.

Spare parts are available in American stores (look for Cruise 'n Carry 6800), I recently saw the carburetor assembled. Also, the Solo Kleinmotoren company is still alive and some suitable spare parts (for chainsaws and lawn mowers) can be bought there.


I would be very grateful if you would pull out part number 10 (gasket?) and photograph it in more detail from all sides.

I’ll give you one of my quotes from the history of this motor, in case you find it interesting.

Hello mmasco,
Thanks for the info, I have just uploaded more pictures of the gasket you asked for to the same folder, so the first link should be working. It is like a softer polished rubber. I have also uploaded the pictures with measures just in case you need them. Let me know if you need anything else. I received the Main jet today, and have put everything together, hoping to test it tomorrow.

Love the story! Now it makes sense why it is so light, it is problably is one of the best power to weight ratio small outboard engines out there. It has a very interesting design, I have never seen anything similar in another engine. The mechanical advancing and retarding ignition timing blew my mind with that spinning plastic disc.
Since you have some information, I have a question for you: I have read that the Solo version of this engine it has 6 hp and the Cruise 'n Carry 6800 also has 6hp, to my knowledge it is the exact same motor. But in the Volvo Penta branding, it is presented with the number 40 and if I am not mistaken it is rated for 4 hp. It is the Volvo Penta version also 6 hp? Or it has different components and it is 4 hp?

 

[mmasco]

Thank you very much for the detailed photos of the gasket. I'll try to make a model of it and print it out of TPU plastic on a 3D printer. I'm also going to make the models of all the gaskets for cutting on a laser machine.

As for power - you won the main prize! All of these engines, including yours, have 6hp. 12kg of weight and 6hp of power makes this engine unique, at least I don’t know of any analogues.

The SOLO brand also includes the number 40. The story is very simple. The first engines for C&C were 4hp, but C&C rejected them because did not correspond to their weight-power concept, and forced SOLO to boost the engine. There were practically no unboosted 4hp engines on sale.

And yet, this engine has a high RPM (like all C&Cs) and you need to pour light motor oil into the gearbox and not standard outboard transmission oil. Pay attention to the oil recommendation in the manual.

And I was interested in the material and thickness of the flaps (flaps #9 on white plastic part #38)

 

[Craspo]

Thank you very much for the detailed photos of the gasket. I'll try to make a model of it and print it out of TPU plastic on a 3D printer. I'm also going to make the models of all the gaskets for cutting on a laser machine.

As for power - you won the main prize! All of these engines, including yours, have 6hp. 12kg of weight and 6hp of power makes this engine unique, at least I don’t know of any analogues.

The SOLO brand also includes the number 40. The story is very simple. The first engines for C&C were 4hp, but C&C rejected them because did not correspond to their weight-power concept, and forced SOLO to boost the engine. There were practically no unboosted 4hp engines on sale.

And yet, this engine has a high RPM (like all C&Cs) and you need to pour light motor oil into the gearbox and not standard outboard transmission oil. Pay attention to the oil recommendation in the manual.

And I was interested in the material and thickness of the flaps (flaps #9 on white plastic part #38)

That will be very helpful since there is not many replacement parts around. I have a small leak on the vacuum pump, I am guessing it is from the diaphragm gasket, I am planning on using permatex gasket maker on the edges if I cannot find the replacement.

Thanks again for the history! How do you know so much about it?

Hmmm that is good to know, I will read the manual carefully and check the gearbox oil, I am pretty sure the previous owner had no idea.

I tested it today and it is flying and screaming! A little scary sometimes with my Dingy with inflatable floor hahaha.
I only have an issue, it wont idle unless it has the choke on. Maybe the idle it is set too low? I tried playing with the idle screw but there was no change, I will have to figure that out.
Also when starting to plane I can hear a high pitch sound, for some reason I feel it is coming from the propeller (it has some dents that I will have to soften), I hope it is not metal rubbing against metal.
Now that it is working fine I will give it a good all around service, oiling and greasing, the throttle handle and steering feels a little stuck.
Any recommendations on where to start? Or what usually goes wrong with it?

The little flaps I believe they are made of stainless steel, extremely thin. I wont be able to measure them with my caliber (I can give it a try if you want, but I wont be able to tell you exactly since they are thinner than 1mm). It felt it was the thickness of coke can. Maybe it can be made out of aluminum?

 

[mmasco]

I like lightweight motors and try to buy the best ones. I have an Elto Cub (1939, 3.5kg), Cruise 'n Carry 6700 (7kg), Mikrosha-M (Soviet engine from the 90s, 5kg). I really liked the C&C 6700, and I studied closely the history of this motor and the company. I dreamed of buying a C&C 6800, but I couldn’t find it for a long time, and then at the beginning of this summer I came across a Volvo-Penta 40, just like you. I haven’t had time to restore it yet, since I went on summer vacation until September, so I can’t help much about how it should work.

As a rule, due to age, such motors come across not in very good condition, so I prepare in advance for what I might encounter and collect all the available information bit by bit.

I think you'll figure out your engine before I get to mine. But if you suddenly need it, I have a photo of the disassembled gearbox and some other components.

I’m a little confused about which vacuum pump you’re talking about? Do you have a version of the engine with a fuel pump and the ability to connect an external fuel tank?

And in the German documentation on Bing, which I sent you, the algorithm for setting up the carburetor is well described. Fully tighten the air screw, turn it back one turn, start and warm up the engine, adjust the idle speed with the throttle limit screw, turn the air screw until the speed increases, then turn it back a quarter turn.

There may also be problems with the size of the hole in the carburetor jet (if you did not buy the original Bing jet). I am attaching some “secret” table (unless of course the moderator cuts it out again), maybe it will help you - https://drive.google.com/file/d/1FlJGV953N6eQIEsjufsAgWpdUQzz2PoX/view?usp=drivesdk

 

[Craspo]

You have a nice collection!
Yes, totally agree, mine did not even have a main jet haha.

Pictures would be great so I can start making an idea on what to expect.

Yes, it does have a passive pump and the ability to connect an external tank. if you are interested I can take a picture of it. I thought all Volvo Penta's came with those two things as standard. I also read somewhere that they had an option for an 12 v output, but will have to check that on the manual.

Awesome, Thanks for the idle info. I believe the throttle was too low, guessing from some other videos online running, or maybe the idle conduct it is somehow blocked (This would be strange because I cleaned it thoroughly with carb cleaner, but you never know). I believe this because the idle jet it is the original one. Will give it a try next week. Thanks also for the table, I will keep it in mind

 

[mmasco]

On my version of the engine there is no fuel pump and there is not even a hole drilled into the crankcase for it. Photo is not needed, a standard pump from mercury/johnson/evinrude is used. But I don't need it and don't plan to install it.

It seems that versions of this engine with on-board power supply (generator) have never been produced. But I could be wrong.

Regarding the carburetor, check (visually) that the throttle handle on the tiller fully opens and closes the throttle valve in the carburetor, and the tiller gear teeth are engaged in the correct position. Some owners had a problem with this.

I posted the photos that I have - https://drive.google.com/drive/folders/1Ef1QCAynj88xHTVBwsKlAPQ1Bm25vgpB