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).
The performance and condition of the ignition governor, fan, crankshaft damper, and flywheel/clutch assemblies.
| Identifier | ExFiles\Box 179b\3\ img378 | |
| Date | 26th February 1933 | |
| - 6 - IGNITION GOVERNOR & DRIVE LOP E 100155 RR SCH 216. There was no indication of the failure of the automatic governor control as was experienced with the previous car. Oil entered the contact compartment by way of the drive spindle but the quantity was not sufficient to affect the contact points. Oil leaked out of the joint of the governor casing where it has to revolve. The ignition automatic advance was satisfactory. The RR contact levers complete with rubbing blocks was fitted before commencing the mileage. The rubbing blocks showed very little sign of wear. Upon several occasions a squeak developed from the rubbing blocks the surface of the cam having become dry. A light wick on the surface fed with oil should overcome this complaint. FAN LCP E 100236 REDUCED SPEED TYPE. There is not sufficient adjustment for the stretching of the fan belt. We found previously that the stop was not necessary and could be deleted. No sign of fracture or fan blades becoming loose was noticed. CRANKSHAFT DAMPER LEC 3259. The crankshaft damper gave no trouble and functioned throughout the mileage. When dismantled no undue wear was noticeable. There was no noticeable crankshaft period throughout the range of speed. FLYWHEEL & CLUTCH LOP G 100500 RR SCH 149-159-299 LEO 3347 The clutch was not free from jaggers throughout the mileage, slack in the drive accentuated it. This was most noticeable when shunting and picking up in traffic. The clutch could be made to slip by continual slipping in traffic. The cause was due to heat expanding the pressure plate there not being sufficient clearance in the splines. This was made O.K. by slightly increasing the clearance which was reported on the 26/2/33. | ||