CYLINDER GP-EJECTOR 4697647 - Caterpillar

Injection 3406 (90U, 91U, 92U) Industrial, Marine And Truck EnginesDescription of Change: A new, improved timing advance weight is used in 3406 Industrial, Marine and Truck Engines. The new, steel weight has a larger spring pocket for more clearance between the spring and pocket than the former timing advance weight. It was some times possible for the spring to make contact with the pocket in the former weight and become worn. The result was failure of the spring.
Adaptable As: The new 1W2284 Timing Advance Weight is a direct replacement for the former 7N6176 Timing Advance Weight, which is canceled. Two timing advance weights are used in a governor and fuel pump drive group on a 3406 Engine.