The Motorcars Rolls-Royce & Bentley Motorcars R-R models from 1907-2002 Bentley models from 1933 - 2002

Bentley: Mulsanne, 482; Mulsanne L, 47; Mulsanne S, 909; Mulsanne S L.W.B., 61; ... Bentley: Mulsanne Turbo, 496; Mulsanne Turbo L.W.B., 24; Turbo R, 4,450; Turbo ... The engine is a conventional six cylinder, single block with a detachable, cast-iron
head. Overhead valves are operated by push-rods. A bore of 3 inches and a 4½ inch
stroke give a capacity of 3,127 cc. Oil pressure is by gear pump. Ignition is by
Rolls-Royce coil with a stand-by magneto as an option from 1923 and as standard
from 1924. The main distinguishing feature of the 20hp is its horizontal radiator
shutters which were changed to vertical in 1928 at chassis number GFN71. The
transmission was initially by centre-change three speed gearbox with a central
handbrake. The handbrake was moved to the right hand side in 1924 and a four speed right hand change box was fitted from 1925. The clutch is single
dry-plate driving an open propeller shaft to a spiral bevel back axle. Fuel capacity 14 gallons with gauge on the tank. Fuel delivery by Autovac. Earlier cars
in chassis form weighed 2,305 lbs. rising to 2,635 later