This document provides instructions for removing and installing the flywheel, crankshaft rear seal, and crankshaft wear sleeve on a 3054C engine. The flywheel removal process involves using guide bolts and a link bracket to support the flywheel weight during removal. The crankshaft rear seal housing is non-serviceable and must be replaced if removed. A plastic sleeve is used to protect the crankshaft rear seal during installation. A puller tool is used to remove the crankshaft wear sleeve.