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).
Conference memo discussing over-oiling issues and piston ring tests on 'New Phantom' models.
| Identifier | ExFiles\Box 72\1\ scan0072 | |
| Date | 28th October 1925 | |
| To OJ. from BJ. BJ9/H28.10.25. (Dict 27th). OVER-OILING ON "NEW PHANTOMCodename for PHANTOM IS". A conference was held here this morning, at which were present:- PN.{Mr Northey} H.{Arthur M. Hanbury - Head Complaints} EP.{G. Eric Platford - Chief Quality Engineer} CWB. Br.{T. E. Bellringer - Repair Manager} BJ. CWB. handed in a report of slow running test (CWB1/LH{Mr Haworth}26.10.25) concerning chassis No. 114-RO.{C. C. Rose - Export Manager} It was noted that this chassis is fitted with the latest piston rings, but the oil holes in rocker arms were not plugged. It was agreed that a number of cars without the new rings and without rocker arms plugged have been delivered and we have received no complaints. This also applies to our demonstration cars. N. have had two Phantom cars at Cricklewood concerning other points, but there was no complaint of these cars over-oiling. EP.{G. Eric Platford - Chief Quality Engineer} had had a large number of Phantoms back at the Works without over-oiling complaints. Mr. Horlick has driven his car 3,000 miles on the Continent and for one week in London and there is no over-oiling complaint. EP.{G. Eric Platford - Chief Quality Engineer} mentioned that Derby were continually introducing new types of piston rings (almost daily) for the purpose of making experiments and testing, but no particular type has been definitely settled on as being satisfactory yet, and no definite permanent cure is yet known. It is difficult to know which may be a permanent cure, as none of the latest piston rings, etc. have been run 10,000 miles. The car which will be here to-morrow, to go to France, will run 10,000 miles with the latest type of piston rings. It is believed that N. are to-day using a different design of piston ring from the latest being used at Derby. Enquiry will be made into this. Br.{T. E. Bellringer - Repair Manager} pointed out that for the last fifteen years R.H. cars had had a method of controlling the oil pump which controlled the oil pressure. This had been useful in the past in overcoming the over-oiling. On the Phantom there is no such control. He did not know why such a useful fitting had been discarded. | ||