Design And Function: Matching

Courtesy of VOLVO CARS CORPORATION

Each main bearing cap has a lug that protrudes from the top surface of the intermediate section. Before the block and intermediate section are jointly machined, the sections are screwed together, which creates a groove in the block at each bearing cap. The grooves create a unique pattern for the block that ensures good attachment between the components. The block and intermediate section are then even easier to take apart.