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| St. Lawrence Engine Flywheels |
| Author |
Message |
    
Norm McIntosh
| | Posted on Saturday, January 04, 2003 - 07:53 pm: | 
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I have two small St. Lawrence single cylinder engines-3 hp. They are identical except for the flywheels. Both are 12" in dia. but one flywheel is 2" thick and has a cast iron piston and the other flywheel is 1 1/2" thick with an aluminum piston.They both have spoked wheels. Which flywheel is correct for that model? Are both engines supposed to have nickel plated heads?Any help would be greatly appreciated. THANK-YOU |
Ernie
| | Posted on Sunday, January 05, 2003 - 09:47 am: |
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Norm,
Quite sure it is an early/late issue. I have had both of the styles that you ask about. I don't remember the SN's of the 2 engbines I had but I am sure the later one had the thin flywheel and aluminum piston.
Hope this helps
Ernie |
Norm McIntosh
| | Posted on Sunday, January 05, 2003 - 10:50 am: |
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Thanks Ernie-Would it make sense that an aluminum piston (because it is lighter than a cast iron piston) would take a lighter flywheel????? |
Ernie
| | Posted on Sunday, January 05, 2003 - 05:45 pm: |
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Norm,
I think the lighter flywheel and aluminum piston gave the engine a higher RPM. Also the flywheel could be ligher because the counterweight in the flywheel would be smaller due to less piston weight.
Hope this helps
E |
Norm McIntosh
| | Posted on Sunday, January 05, 2003 - 10:32 pm: |
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Thanks again Ernie......I feel I have a handle on both these engines now that you have explained their differences and similarities....Best wishes...Norm |
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