I'm building an experimental horizontal petrol-engine, incorporating some unusual (?) ideas. I reckon that the power will be very low so I hope to get away with non-full-size materials.
The crankshaft is machined from an aluminium casting, with main bearings in ball-races. I would like to try carbon for the big-end bushings, on the basis that electric-motor brushes run for sometimes years rubbing against the copper commutator.
Have any of you had experience of using carbon rubbing against aluminium, with or without lubrication?
I have read that some flame-licker designs use a carbon piston in an ali. cylinder though I guess the forces there a quite different from what I want to do.
Geoff
The crankshaft is machined from an aluminium casting, with main bearings in ball-races. I would like to try carbon for the big-end bushings, on the basis that electric-motor brushes run for sometimes years rubbing against the copper commutator.
Have any of you had experience of using carbon rubbing against aluminium, with or without lubrication?
I have read that some flame-licker designs use a carbon piston in an ali. cylinder though I guess the forces there a quite different from what I want to do.
Geoff