CAT 3304 and 3306 engine specs, key bolt torques and manuals at Barrington Diesel Club. Basic specs are open to everyone and include images, displacement, dimensions and weight, key bolt tightening torques, the characteristics of the engine like its power and torque. Among the manuals we have available for these engines are the Specifications manual, the Systems Operation Testing and Adjusting manual, the Disassembly and Assembly manual, in addition to the manuals we have spec sheets for the 3304 and 3306B marine engines. Barrington Diesel Club provides specs, bolt torques, manuals, assembly clearances and workshop procedures for many makes and models of diesels.