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Message |
    
Tom Williams
New member
Username: charliehustle
Post Number: 3
Registered: 01-2023
| | Posted on Wednesday, January 18, 2023 - 06:47 am: | 
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I just purchased my first marine engines and need help identifying make and model... please forward any information for restoring and a contact for parts.
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Dick Briggs
Senior Member
Username: dick_briggs
Post Number: 66
Registered: 02-2015
| | Posted on Wednesday, January 18, 2023 - 09:48 pm: |
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This looks like a St. Lawrence engine; maybe that is a label on the cylinder behind the timer lever. Use the search feature at the top of this page for a lot of information. Needs some Schebler carburetor parts and a cylinder drain cock. You might likely find these on eBay or from members here. |
Chris Spring
Senior Member
Username: chris_spring
Post Number: 241
Registered: 02-2019
| | Posted on Thursday, January 19, 2023 - 08:00 am: |
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I'd say it is a St.Lawrence. Miro has one similar. And it looks like that drain cock has been broken off.
Cheers! |
miro forest
Senior Member
Username: miro
Post Number: 1211
Registered: 11-2001
| | Posted on Thursday, January 19, 2023 - 03:08 pm: |
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Actually, the cock that has broken off is a de-compression valve. It is openned to reduce the compression for starting.
The drain cock is on the back of the rear cylinder.
BUT . . . most importantly that heads are on backwards. The priming cups should facing forward. This is important because of the way the water passages are connected between the cylinder block and the head.
If you get them backwards, you'll get no water flow out the manifold, and it might leak into the cylinder.
The water outlet from the cylinder is the small "tit" on the top of the manifold.
And yes, it is a St Lawrence engine made in Brockville , Ont Canada.
Get the serial number from the name plate and Richard D will give you the year of manufacture.
The pictures show that you have the bottom half of a Schebler D carb - lots of them are around and should be OK to find an upper half . You'll likely need a new float - get one that is impervious to the ethanol in modern gasoline.
The gas/oil mix ratio that I use is 25 to 1 .
I use SAE 30 non-detergent motor oil or any modern 2 cycle oil ( it's more expensive) .
Look at the OME web site technical info to get details of the Schebler D carb and instructions.
Finally, you'll need two ignition coil systems for this engine. I can send you the info on how to make them, or I make kits for the "hard" parts or , I can make the whole ignition system (all in one box). You'll also likely need to rebuild the timer contacts just behind the flywheel - it's not difficult, just a bit fussy to remove and install once rebuilt. I can help you with that.
Miro |
Tom Williams
Member
Username: charliehustle
Post Number: 4
Registered: 01-2023
| | Posted on Saturday, January 21, 2023 - 07:00 am: |
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Hello...
Thank you all for your messages... the information is great to know... I live in Cincinnati, Ohio and have not met anyone in my area who collects marine engines.
Hello Miro... concerning the Schebler D carburetor... is this carburetor a 3/4" pipe connection...? Also... does operating instructions exist for these engine...?
I am interested in your information for the ignition system... how do I contact you for this information...?
Thank You... Tom. |
Dick Briggs
Senior Member
Username: dick_briggs
Post Number: 67
Registered: 02-2015
| | Posted on Saturday, January 21, 2023 - 11:41 am: |
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Tom. If you go to this part of the OME site, you will find some useful information about ignitions and Scheblers as well as hints for running your engines.
http://www.oldmarineengine.com/technical/index.html |
miro forest
Senior Member
Username: miro
Post Number: 1217
Registered: 11-2001
| | Posted on Monday, January 23, 2023 - 06:36 am: |
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Here's a video that I made early on , that shows the crankcase "pop" when the piston clears the intake port at the bottom of the stroke.
That means that the cylinder and bearings are sealing well.
You can see that I poured in a bit of oil on the top of the piston to make sure the piston is sealing the case.
( sorry that you've got to get through the ads - I don't make any $$$ on this - Google gets it all)
https://www.youtube.com/watch?v=26ZqocIaS5w
miro |
Tom Williams
Member
Username: charliehustle
Post Number: 6
Registered: 01-2023
| | Posted on Tuesday, January 24, 2023 - 06:47 am: |
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Hello...
All the replies and information is fantastic...
I am really enjoying this hobby... please continue
sharing your knowledge... I am visualizing in the future a few more engines will be coming home to roost in my shop. |
Chris Spring
Senior Member
Username: chris_spring
Post Number: 244
Registered: 02-2019
| | Posted on Tuesday, January 24, 2023 - 08:18 am: |
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Tom.
Be warned. There is an addiction going around that can be caught by spending too much time on this site. Even the occassional glance can be contagious. Its called MOMES.
MOMES stands for Multiple Old Marine Engine Syndrome. Once you have it, it is hard to get rid off. In fact. most times it only gets worse.
Common symptoms are a sense of curiousity in anything old and marine, a tendancy to accumulate marine engines, a desire to tinker with said engines, and sense of pride of ownership.
Sometimes the most afflicted can be found simply admiring their collection.
That said, if the bug bites, you've come to the right place. You'll be among good company here who can often offer invaluable advice.
Cheers! |
RichardDurgee
Senior Member
Username: richarddurgee
Post Number: 4192
Registered: 11-2001
| | Posted on Tuesday, January 24, 2023 - 07:54 pm: |
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Chris Spring
Senior Member
Username: chris_spring
Post Number: 246
Registered: 02-2019
| | Posted on Wednesday, January 25, 2023 - 07:34 am: |
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Richard.
For your list I have ser # 5610. There is a thread about it in one and two cylinder gas engines.
It is a runner.
Would I be correct in saying it was probably built around 1925?
Cheers! |
RichardDurgee
Senior Member
Username: richarddurgee
Post Number: 4193
Registered: 11-2001
| | Posted on Wednesday, January 25, 2023 - 03:13 pm: |
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1925 a close number !
The list above was assembled and updated but several years old now, I am not monitoring it and updating it any longer.
St Lawrence owners interested please copy this list to your files I have posted it here many times but is nearly impossible to find it on " Search" Maybe Andrew could put in in the Technical Section ? ANYONE who would like to take on and continue its history PLEASE do ! Seems that no one
has stepped up to continuing or much interested in The History of the old marine engines anymore, My old data base of North American Marine Engine mfgrs from beginings to 1940 has 2088 entries a work that spanned 30 yrs, I don't think that there is any list comparable to it but so few interested that the work and expense of publishing doesn't seem feasable ! The chart and discussion on dating the Gray marine engines was also posted here but also not easliy found in the "Search", several collectors still can't date thier Gray's ! Ernie was very instrumental in assembling the Gray data to make sense of their numbering system it was a step forward when we could finally date our engines- it was never put in the tech site either !
I guess This History is now History !
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