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Removing the piston from a late 1940 Atwood GD Glo-Devil engine

rglauson

New User
I recently bought a 1940's vintage Atwood GD Glo-Devil engine and am trying to disassemble it. The cylinder does not appear to have a liner and am not clear how to remove the connecting rod from the crankshaft to get the piston out. All of the information I have found states that once the cylinder liner is removed, the connecting rod can easily slip over the crankshaft pin. Any suggestions?
 

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The liner looks like it's part of the lower crankcase, but it's not. It's made from steel and is just a good fit inside the aluminium case.

You need to remove the cylinder head screws and then soak it in some kind of non-corrosive release agent to get past the gunk. If that doesn't work, put it in your oven and heat it to about 200 degrees C. The liner should then come out with oven mitts and some rotation.

Despite what "she who must be obeyed" says about using her oven, DON'T USE A BLOWTORCH. Uneven heat will either melt something or get it so hot as to really disturb the liner's molecular structure.

I hope that helps.

Doc
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