It's not unusual to add or change engine-driven accessories to a classic truck, but that often requires other changes as well. A case in point is the Chevy shown here. Updating the air conditioning ...

Over-tensioning shortens not only the life of V-belts but also that of the sheaves, electric motor, and driven equipment bearings. In extreme cases, it can even bend or break a motor shaft.

It's universally recognized that proper synchronous belt tension is key to efficient drive operation. And where newer-generation belts drive loads, proper tensioning is critical. First-generation ...