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).
Report discussing issues with a thermostatic unit, engine side trays, undershields, and brakes.
| Identifier | ExFiles\Box 82\1\ scan0335 | |
| Date | 19th December 1933 | |
| - 2 - between the thermostat and the shutters to take full advantage of the working stroke of the former, which should have some appreciable effect, but in the meantime we suspect that the thermostatic unit on the 10,000 mile car is not standard, but a sample we are testing made up by the Packless Gland Co. which may have a stiffer bellows than the Smith type we normally use, and would require a higher vapour pressure in consequence, and hence the higher temperature before coming into operation. This is being investigated. (4) Engine Side Trays and Undersheets. Discussion under this heading elicitated the fact that the engine presents the appearance of being splashed all over with dirty water rather than any large quantity of mud working its way through the undershields. The opinion is that this splashing does not take place through the louvres in the underguards and this gives cause for satisfaction as we do not want to delete these louvres and thereby reduce some of the cooling effects which tend to keep down oil temperature. The splashing is thought to penetrate through the space between the guard and the crankcase near the oil pump, the space under the radiator, the aperture surrounding the rear ends of front springs, the aperture provided for the exit of the exhaust pipe, and a gap provided between the overlap of the front and side guards. At the present moment alterations are required to these guards for another reason, namely, to allow the engine to be dropped into place in the chassis after the guards have been fitted and thereby saving a certain number of hours of labour. These criticisms come at an opportune time as the alteration last mentioned would undoubtedly aggravate the offence, as they require the guards to be still further cut away. The policy recommended here will be to modify the guards so that the major portions can be bolted into position before the engine is dropped in place, and then to arrange for certain additional easily attached and detached pieces to be fitted, to cover up the openings other than those provided by the louvres. (5) Brakes. With regard to the fading away of the braking effect it is reported experimentally that this can only be | ||