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).
Specification and observation sheet for a Buick vehicle.
| Identifier | ExFiles\Box 124\3\ scan0099 | |
| Date | 19th February 1918 | |
| - 2 - Buick - Contd. Engine Valve Timing. I.O. T.D.C. I.C. 50° P.B.D.C. E.O. 80° B.B.D.C. E.C. 10° P.T.D.C. } .002" clearance. Bore of Cylinder. 3.375" Stroke - 4.500" Valve Lift. Inlet .2845. Exhaust .297. Compression No. 3 68 lbs No. 5 70 " Cubic capacity 13 cu.ins. Vacuum in Induction Pipe 1 3/8" mercury. Springing - no shock absorbers. Springing very poor. Springs not flexible. Car holds the road fairly well. Ignition - Delco coil only. Timing - Retarded 7° P.T.D.C. advanced 10.5° B.T.D.C. On Governor 25° B.T.D.C. Order of Firing 1, 4, 2, 6, 3, 5. Steering Not reversible - not self centering - no wobbles. Road Shocks felt in wheel. Dia of circle to turn car - Right Hand 40 ft. 10" Left Hand 40 ft. 9 1/2" Lean of Pivots - O.S. 9/16" N.S. 11/16" - length 8 3/4" Length of centre of sphere to centre of axle - 57". Gearbox and engine one unit - diagonal stays [stops crossed out] from rear of axle and across axle. Foot brake, outside band - inside band side brake. Ignition Switch starts motor running slowly - when car is running slowly starter motor overruns engine which causes a clicking sound. Back lash in transmission taken on road wheel 1 9/16". | ||