A specialized tool exists to determine the correct size of small, precisely measured components necessary for adjusting the clearance in specific internal combustion engines. These components, typically thin discs or shims, dictate the gap between the valve train and the valves themselves. For example, after measuring existing clearances, this tool calculates the ideal shim thickness required to bring the valve lash within specified parameters.
Precise valve clearance ensures optimal engine performance, longevity, and fuel efficiency. Incorrect clearances can lead to reduced power, increased wear on engine components, and even valve damage. Historically, technicians relied on manual calculations and trial-and-error, a time-consuming and potentially inaccurate process. This tool streamlines the adjustment process, minimizing errors and saving valuable time.