Toyota R engine

The Toyota R engine was a series of inline-four gasoline automobile engines, designed for longitudinal placement in vehicles such as the Celica and the Hilux and in production from 1953 through 1997. It faded from use as many of Toyota mainstream models moved to front-wheel drive. The first engine, the 1.5 litre R of 1,453 cc, was made from 1953 to 1964 at the Toyota Honsha plant, with a cast iron block and head, water cooling, a three-bearing crankshaft, 12 volt electrics, a side-mounted gear-driven camshaft working overhead valves through pushrods, and a twin-throat down-draft carburettor at 8.0 to 1 compression. That R powered the 1958 Toyota Crown, the first Toyota exported to the United States. Overhead cam versions of the later members used a chain-driven camshaft. The family grew through the 2R, 3R, 4R and 5R to larger members, and some were built in LPG versions for taxi and commercial use. In the Transport Atlas it is a key early engine of the Toyota road-car story.