AMCO 3.5cc Plain Bearing Restoration

 

The engine as received, missing the con-rod and piston.

Partly dismantled. Next step is to fully disassemble the engine and clean all the components.

Next step is to completely dismantle the engine and clean all the parts, then decide what we'll keep and what we'll replace.

Below are the parts cleaned and getting ready to reassemble......

 

Progress so far.

Crankcase and crankshaft cleaned and reassembled along with the refinished prop driver and washer with a new prop nut. Back plate cleaned up and refitted with a new gasket. New con-rod made and fitted.

 

Now we can move onto refinishing the cylinder liner, lapping to the correct geometry, make and fit a new piston and contra piston, gudgeon pin etc.