This technical reference guide focuses on small engines, specifically addressing crankshaft dimensions and specifications. It is designed to aid in the refurbishment and conversion of older engines, supporting discontinued parts and offering detailed information on crankshaft compatibility. The guide covers a range of small engines typically found in applications from 1 HP to 15 HP, with displacements from 50cc to 400cc. It provides critical dimensions such as main journal diameter, rod journal diameter, stroke, crankshaft length, and PTO shaft details, ensuring accurate component selection for various engine models.

The purpose of this English-language e-book is to serve as a comprehensive resource for technicians and enthusiasts working with engines. It details essential crankshaft dimensions required for inspection, replacement, and compatibility verification, making it an invaluable tool for engine rebuilding projects. While not a maintenance schedule, this guide facilitates proper component selection and installation, contributing to the longevity and performance of refurbished engines. It is intended for users engaged in engine repair and modification, providing the precise data needed for successful outcomes.