BL R-series engine fitted to the Maestro with the carburettor facing the front of the car, which also led to a reputation for carburettor icing in cold weather. The endemic problem of crankshaft failure was later attributed to flexing of the crankcase – because the E series relied upon the heavy sump/transmission unit to give additional strength to the cylinder block casting, this caused problems when a plain sump was bolted in its place. The R series was superseded in 1984 by the S series. BL R-series engine The R series is a line of petrol engines introduced by British Leyland in 1983
BL 6-inch Gun Mk XIX BL 6-inch Gun Mk XIX The British BL 6 inch Gun Mk XIX was introduced in 1916 as a lighter and longer-range field gun replacement for the obsolescent BL 6 inch Gun Mk VII. The gun was designed and built by Vickers specifically as a field gun, unlike its predecessors which originated as naval guns. Its length was reduced from the 45 calibres of its naval gun predecessors, to 35 calibres, to reduce weight and improve mobility. It utilized the modern carriage and recoil mechanism of the BL 8 inch Howitzer Mk 6. The gun barrel was of wire-wound construction: