Barbini B40 Testa Nera

The 2,5cc Barbini B40 Testa "nera" glow engine had one ball race and one roller bearing on the shaft, with another roller on the conrod big-end. The Testa "verde" used the same crankcase, but was a plain bearing glow engine. The head on the lower engine looks gold to me, so no idea what it might be, nor what bearings are fitted.

Ref: Angeloni, S: The Italian Barbini, Model Engine World, volume 7, No 70 (the final Goodall issue), p14.

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