How does one describe the Riley 9? In it’s day, the Riley works described it as ‘The Wonder Car’, and on the 16th of October 1931, Autocar stated, "First of the superlative type of 9hp car, firmly established, regularly improved and as yet scarcely challenged in its class, the Riley Nine has a very definite appeal to those who can ...

First introduced in 1926, Percy Riley's 9hp twin-cam four was an outstanding engine design by any standards, with various developments powering Riley cars until 1957. Looking to all intents and purposes like a twin-overhead-camshaft design, the Nine's cross-flow cylinder head featured hemispherical combustion chambers and valves inclined at an included angle of 90 degrees. The twin, gear-driven camshafts were mounted ...

Hello to all our friends, customers and new subscribers and welcome to the first entry into the new Blue Diamond blog. This blog is aimed to be very relaxed and more informative than formal, it will cover the exploits of the Blue Diamond team, our cars, workshop restorations and events that the team attend over the course of the year. …

Helen, Natasha and I were invited to be the guests of the Ulster Riley Club for their 45th anniversary rally at the Giants Causeway in Northern Ireland. Initially I had high hopes of attending in a suitable car, the team had spent a full week preparing BD’s 1933 Riley 9 Lynx. However, due to a significant oil leak from the …

Blue Diamond Riley Services Limited’s Daniel Hunter has been accepted into the Federation of British Historic Vehicle Clubs’ historic vehicle restoration course starting in September. The Federation of British Historic Vehicle Clubs has been designed to be the only Office of Qualifications and Examinations Regulation (OFQUAL) accredited modern apprenticeship course for vehicle restoration in England. The framework has been compiled ...