Performance report on the Flywheel & Clutch, Low Inertia Damper, and Gear Box & Actuating Gear.
| Identifier | ExFiles\Box 5a\3\ 03-page314 | |
| Date | 20th June 1933 guessed | |
| - 4 - FLYWHEEL & CLUTCH LOP.G.54733. Complete to the above LOP.-Rs. {Sir Henry Royce's Secretary} 935 Clutch Damper Spring Drive is incorporated:- Ex. 10008 Torque Plate Ex. 10009 Driving Sleeve Ex. 10010/11 Male Bushes R.A.D.11 Friction lining. G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 54136 Clutch Spring. The clutch has had a smooth take up of the drive. At speed it has been inclined to grab when changing from third to direct. With the exception of two occasions there has been no sign of slipping. The clutch has been free from torsional rattle forward and retard. Toward the finish of the mileage a fair amount of oil was leaking from the clutch pit, the oil having passed through the rear engine bearing. LOW INERTIA DAMPER LOP.H.54745. Complete to the above LOP. Using SB. {Mr Bull/Mr Bannister} 226 Fan Pulley - in conjunction with Peregrine(Experimental Bentley car never produced / Aero Engine) fan. The low inertia damper was fitted with ferodo discs at a mileage of 2900 to obtain information with regard to wear and consistency. There was no periods on the crankshaft noticeable until 12000 miles had been covered. The half crankshaft period then became noticeable. Examination proved: the ferodo discs had become glazed. The friction surfaces of the wheels and centre driving plate were highly polished. The slipping load had dropped from 11 to 8 1/2 lbs at 17 1/2" radius. GEAR BOX & ACTUATING GEAR LOP.G.54724-E.S.3623. Complete to the above LOP & Scheme incorporating Helical Second Speed. G.55814 Sol.Shaft-1st & 2nd Speed. G.55815 Sol.J & Fork-1st & 2nd Speed G.55817 Gear Box. We have had no trouble with the Gear Box. The silent second gear has been quite, easy to engage, and with ordinary care a perfectly silent change can be obtained. The synchromesh | ||
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).