01 January 2026

Sunbeam Talbot Ten - Alternator Belt Sizing

 Bearing Boys have a helpful link to calculate the belt length by measuring the diameter and the centre distance. The centre distance is 440mm, crank pulley 126mm and alternator pulley 59mm. It suggests a pitch length of 1173mm.

Copyright Bearing Boys

The SPBX belt is designed to go around a smaller diameter pulley. I'll update once the belt arrives.


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