From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Component breakages and failures at specific mileages.
Identifier | ExFiles\Box 71\4\ scan0094 | |
Date | 30th March 1925 | |
R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF HS{Lord Ernest Hives - Chair}/AJL/LG30.3.25. BREAKAGES. Side steering tube spring F.{Mr Friese} 71401 One after 6,370 miles, one after 8,000 miles. No. 6 piston head failed - after 5,220 miles. Nos. 11 and 12 push rods broken owing to above. No. 12 valve spring " " " Rear exhaust manifold - after 9,500 miles. ------------------- FRONT SPRING BREAKAGES. Top leaf N.S.F. spring after 8,006 miles. 3rd. leaf from top N.S.F. " 8,006 " 6th. " " " O.S.F. " 8,006 " 7th. " " " O.S.F. " 8,006 " Bottom leaf O.S.F. " 9,290 " 2nd. leaf from bottom O.S.F. " 9,290 " 5th. leaf from top N.S.F. " 9,290 " Bottom leaf N.S.F. " 9,290 " 2nd. leaf from bottom N.S.F. " 9,290 " Top leaf O.S.F. " 9,350 " ------------------- 3rd. step iron from front (off side) - twice. contd :- | ||