Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

A little bit of progress made .
One cylinder bored to maximum.
One cylinder bore roughly then sleeved with brass .
Brass was chilled and cylinder heated then pressed in .
Then  2.  1/8th by 40 tpi holes drilled and threaded through cast iron into the brass sleeve .
Brass rods soldered in place . This will prevent the sleeve ever shifting
Then final boring done .

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