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).
Flooding carburettors and a cracked petrol pipe on the Phantom III model.
| Identifier | ExFiles\Box 131\4\ scan0202 | |
| Date | 10th May 1937 | |
| To Hs.{Lord Ernest Hives - Chair} from Rm{William Robotham - Chief Engineer}/O&H.{Arthur M. Hanbury - Head Complaints} c. Rm.{William Robotham - Chief Engineer} c. KRC. c. I. c. By.{R.W. Bailey - Chief Engineer} c. Mx.{John H Maddocks - Chief Proving Officer} 1113 Cricklewood, May 10th. 1937 PHANTOM III. STROMBERG CARBURETTER. Serious trouble is developing with flooding of these carburetters. Three new PhantomCodename for PHANTOM Is were held up in Town last week owing to this feature. One owner Sir John Lee had only just taken delivery. This trouble is one that no direct evidence can be obtained of what is actually the cause. The symptoms all point to foreign matter under the float needle valve seating or sticking of the needle valve. All carburetters I have seen dismantled at Cricklewood have had a quantity of dirt in the float chamber. It is quite possible that this is coming out of the petrol system during testing operations. If Mx.{John H Maddocks - Chief Proving Officer} would check a car after routine test it may prove this point. Our own carburetter with the needle valve at the top was self cleaning. With the Stromberg this is not the case and is prone to non-cleaning. The main petrol pipe in the vee was cracked close to a bend on a Ph.III. The chauffeur had to finish breaking the pipe in two to fit a rubber connection. The fracture crosswise looks as if the pipe had been too hard and cracked whilst in the operation of bending. Rm{William Robotham - Chief Engineer}/O&H.{Arthur M. Hanbury - Head Complaints} | ||