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).
Instances of cracked exhaust manifolds on specific Bentley chassis.
| Identifier | ExFiles\Box 86\3\ scan0169 | |
| Date | 23th May 1936 | |
| To Bentley Motors Ltd. Derby Copy to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} [Handwritten top right] Wyman. What is our test bed experience Levallois Sr/VA3/ET.23.5.36 Re: CRACKED EXHAUST MANIFOLDS ON BENTLEY CHASSIS ====================================================== We have recently had to change the exhaust manifolds on the undermentioned Bentley chassis, owing to the manifolds having cracked at a point below the top stud hole of the centre branch, marked in red on the attached sketch. Chassis B.33.CW - Mme N. SAINT - Mileage of car at time of changing manifold 12.771 Kms. " B.171.DK - Mr. LECOULTRE - Mileage of car at time of changing manifold 17.784 Kms. " B.160.EF - M.{Mr Moon / Mr Moore} ABECASSIS - Mileage of car at time of changing manifold 6668 miles. [Handwritten bottom] P.S. Sketch attached to Reg & Copy Sr/VA.VA Rm.{William Robotham - Chief Engineer} Manifolds crack very easily on Test Bed if not water cooled. Good byman | ||