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).
List of engineering questions and action points concerning Bentley vehicle components.
| Identifier | ExFiles\Box 174\3\ img157 | |
| Date | 13th May 1937 | |
| BENTLEY. -5- (1) How soon can we have the spring to lighten the clutch pedal pressure running? How soon can we try a Long plate in the Bentley? Are we sure that the raised front engine mount that we are urging will be kind to clutches? Can we get nothing on the existing Bentley half shafts without a rear axle re-design? [handwritten] B.L. remove half shafts & fit long plate (2) Grylls to get out a specification for a Bentley III axle that will satisfy him, also an analysis of what weight increase this will mean. (3) Martindale to keep an eye on what brake mods are required on B.III as designed to fall in with his requirements. (4) What is the bumper test history of the raised engine mounting? Has Waller any objections to it? (5) Martindale, we want to know somewhere where we can get the Pacard type brake torque arm electrically welded up. Alternatively, Are welded. We should take our model arm round with us and get a figure for cost from some one. (6) As a quick experiment, we want to try making a Bentley spring drive solid and seeing where we get a gear rattle. [handwritten] KEEP ON (7) What are we going to do about main bearings as a result of C.E.IV test? [handwritten] KEEP ON (8) What type of hub is used on the S.S. Jaguar, who makes it, and what does it cost? We note that they have Rudge wheels. (9) What is the specification of the O.H. camshaft unit? What camshaft is fitted? What is the M.E.P. curve, and exhaust system compared with standard? Have we low lift cams? What is max. M.E.P. that can be used without detonation compared to standard. (10) Edwards - Single Cylinder. What is the difference between the M.E.P's obtainable from the high power head and the standard head for a given degree of detonation? Rm.{William Robotham - Chief Engineer} | ||