|Cummins N855procedures amd bolt torques. How to set and tune-up your Cummins N855 engine and set its valves and injectors. These quick step methods to tune your Cummins N855 engine, with links to more specs and bolt tightening 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.Key bolt tightening torques are the main bearing cap bolt torques, the connecting rod cap bolt torques and the cylinder head bolt torques. Among the manuals and literature we have for this engine are various workshop manuals and spec sheets, and a specifications manual for the BigCam-4 engine.This webpage has more information in the form of valve set procedures, injector setting methods and complements our other big cam and small cam articles and web pages. We provide engine specs, bolt torques, manuals and technical data for many makes and models of diesel engines.