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).
Inspection report of the distributor and contact breaker on a Spectre 3.S.I. engine.
| Identifier | ExFiles\Box 61b\2\ scan0263 | |
| Date | 24th September 1935 | |
| 86119. 24.9.35. INSPECTION OF DISTRIBUTOR & CONTACT BREAKER ON SPECTRECodename for Phantom III 3.S.I. Distributors. Slight tracking in the centre of one distributor and small piece chipped off the outer edge the other distributor, otherwise, bth. in satisfactory condition. Rotors and Rotor blades. Both rotors O.K. Normal wear in the centre, and leading corner of blades. Cams. Both cams are in satisfactory conditions, no wear visible. Bearings. Excessive play in both bearings. Contact levers. Pair of contacts in one head in good condition, the average contact wear being .014", the average rubbing block wear .003". Both pivot bushes in satisfactory condition. The other head, average contact wear .017" and the average rubbing block wear .028" this excessive wear probably caused by the poor method of cam lubrication. One pivot bush loose in contact lever, the other O.K. Otherwise both heads in satisfactory condition. H.T. Ignition Cable. Cables tested O.K. electrically, but mechanically in poor condition, the outer covering having become, brittle, cracked and frayed due to heat and oil. | ||