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).
Fierce clutch and sticking valve rockers on Phantom III, chassis 3-AX-173, for Rt. Hon. Lord Portal.
| Identifier | ExFiles\Box 131\2\ scan0163 | |
| Date | 4th May 1938 | |
| BY.{R.W. Bailey - Chief Engineer} c. Rm.{William Robotham - Chief Engineer} c. Mx.{John H Maddocks - Chief Proving Officer} c. Hs.{Lord Ernest Hives - Chair} N R.{Sir Henry Royce} Chandler File Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}7/G.4.5.38. 1113 PHANTOM 111. CLUTCH. 3-AX-173.MILEAGE 6,754. RT. HON. LORD PORTAL. I reported in mistake this car as belonging to Duke of Portland. This was a case of fierce thermoid clutch which has been dealt with by the fitting of weaker clutch springs. The result was satisfactory. There was a number of other complaints on this car, which delayed the testing of the clutch since my first report. A feature which gave a lot of trouble, and is being experienced frequently is the sticking of the valve rockers after a top decarb. has been done. Swell to nett I first blamed Cricklewood for not taking sufficient care and cleanliness in the re-erection of the rocker shafts, and I went so far as to explain to the men concerned the absolute need of careful washing etc. Although this was done, the rockers still persisted in sticking open. The trouble in this case was that the bushes in the rockers had worn eccentric, and the cleaning out of the carbon freed them so that they worked round causing them to bind. Eventually, after hours of work new concentric bushes had to be fitted. This being one of the first series of Phantom 111, when the fault in machining of the bushes was found out, may have had bushes fitted that were not 100%. This trouble, however, is one, that may be met with when dealing with a top decarb. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||