Is it advisable to file or fit the connecting rod?

Filing or fitting the connecting rod is not advisable because it could lead to several issues that compromise the integrity and performance of the engine. The connecting rod is a critical component that connects the piston to the crankshaft and must maintain precise dimensions to ensure proper alignment, function, and balance.

Modifying the connecting rod by filing or fitting it may disrupt its structural integrity, leading to failure under high-stress conditions. Precision engineering is crucial for parts like these, and typically, manufacturers provide specifications to ensure optimal performance and safety. Any alterations could result in misalignment of the piston, increased wear, and potential engine damage.

Furthermore, if adjustments need to be made, they should typically be done according to manufacturer guidelines or specifications found in service manuals, where the proper procedures and tolerances are outlined. This ensures that all modifications conform to safety and performance standards. Therefore, the best practice is to avoid any unapproved modifications to the connecting rod.