Insights on what KDP is, why it occurs, and how to fix 5.9L 12-valve Cummins engines so it doesn’t happen … ever. Cummins diesel engines. While it's safe to say a majority of Clessie's loyalists ...

Anyone that’s popped a clutch cover off an engine or removed camshafts to swap valve shims is familiar with the steel dowel pins manufacturers use to keep critical components and gaskets aligned.

On motion designs, there are many ways to align components. One useful approach is to drill twin holes into mating parts, and then use a pin or dowel to fill and align the holes. Here, the most common ...