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 modifications and drawing statuses for the 3½ Litre Bentley Chassis.
| Identifier | ExFiles\Box 30\4\ Scan233 | |
| Date | 14th July 1934 | |
| - 8 - BY.1/G.14.7.34. 3½ LITRE BENTLEY CHASSIS. LeC. 3898 Horizontal Carb. Auto. Control Modification. ...... Recd. 25.5.34. Detail drawings completed and issued .................... 11.6.34. LeC. 3909 Flexible Rear Engine Mounting .................... Recd. 10.5.34. Detail drawings completed and issued .................... 2.6.34. LeC. 3911 Float Chamber Sealing Pipes .................... Recd. 10.5.34. Detail drawings completed and issued .................... 28.5.34. LeC. 3933 Valve Spring Bottom Washer for use with LeC. 3873. Recd. 17.5.34. Detail drawings completed and issued .................... 23.5.34. LeC. 3934 Horizontal Carb. Mods. to Auto Control .......... Recd. 25.5.34. Detail drawings completed and issued .................... 11.6.34. LeC. 3937 Modfn. to Gear Box Rubbers .................... Recd. 23.5.34. Detail drawings completed and issued .................... 1.6.34. LeC. 3947 Mod. to Float Chamber Sealing Pipes ............ Recd. 28.5.34. Detail drawings completed and issued .................... 12.6.34. LeC. 3977 Fabroil Timing Gear & Water Pump Drive Gear. ..... Recd. 13.6.34. Detail drawings completed and issued .................... 19.6.34. LeC. 3982 Long Duration Valve Lift Curve .................. Recd. 14.6.34. Detail drawings completed and issued .................... 22.6.34. LeC. 3983 26 Gallon Petrol Tank .......................... Recd. 23.6.34. Detail drawings completed and issued .................... 27.6.34. LeC. 3993 Double Valve Springs for Aluminium Cyl. Head. ... Recd. 21.6.34. Detail drawings will be put in hand as soon as possible. LeC. 3996 Modified Gudgeon Pin End Plugs ................ Recd. 21.6.34. Detail drawings completed and issued .................... 26.6.34. LeC. 3997 Modfn. to Flexible Rear Engine Mounting ........ Recd. 20.6.34. Detail drawings completed and issued .................... 29.6.34. LeC. 4001 Filler Tube and Cap (26 Gallons Petrol Tank). ... Recd. 23.6.34. Detail drawings completed and issued .................... 28.6.34. N. Sch. 3963 Modfns. to Mud Excluders for Steering Tube. .. Recd. 14.6.34. Joints ................................ Detail drawings are in hand. | ||