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 The R series was superseded in 1984 by the S series.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 4.5-inch Medium Field Gun BL 4.5-inch Medium Field Gun The BL 4.5 inch Medium Gun was a British gun used by field artillery in the Second World War. It had nothing in common with the QF 4.5 inch Howitzer or the QF 4.5 inch AA Gun. By the end of 1930s, the World War 1-era BL 60-pounder of 1905 had reached the end of its usable service life within the ranks of the British Army. A successor was sought and work began on an all-new design that would result in the Ordnance BL 4.5" Medium Field Gun, a long range medium gun designed for