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).
Investigation into an oil leak from the rear axle into the brake liners on a demonstrator chassis.
| Identifier | ExFiles\Box 27a\1\ Scan129 | |
| Date | 12th July 1934 | |
| Copy. To Hd.{Mr Hayward/Mr Huddy} Derby. Copy to 'By' Levallois. Hm{Capt. W. Hallam - Head Repairs}/VA4/ET.12.7.34. Re CHASSIS B-130-AH - DEMONSTRATOR. OIL LEAK FROM REAR AXLE INTO BRAKE LINERS. ------------------------------------ We have recently attended to this car re insufficient braking on the rear off side wheels. Upon dismantling the brake drum, we found the liners to be in a very "oily" state. It would appear to us that, when a Bentley car is driven on a heavily cambered road, such as are found in France, there is a risk, if there is a little too much oil in the rear axle, that the excess of oil, instead of finding its way out past the overflow pipes, overflows past the oil guard and then on to the brakes. Upon reference to Arrangement Drawing No.G.B.854, the part number of the oil guard is G.100969. We think that if a fairly large oil trap or well were fitted to the lowest point of the G.100966/7 RH.{R. Hollingworth} and LH.{Mr Haworth} inner carrier plates, with sufficiently large overflow pipes, there would be much less risk of the above trouble occurring. We measured the excess of oil in the rear axle of this car and it was barely 1/4 of a litre in excess. This is the second car which we have attended to for this particular trouble. We shall be pleased to have your views upon the matter. Hm{Capt. W. Hallam - Head Repairs}/VA. | ||