TECUMSEH/CRAFTSMAN 318cc HORIZONTAL SHAFT ENGINE USED- MODEL# 143-019003 admin July 7, 2024 Comments Off Good engine, runs with gas sprayed into carb- will need tune up. Crankshaft is 2 1/2″ long, 3/4″ wide and is keyed and tapped. Engine has NO OIL, NO OIL, NO OIL.