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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).
Observations on the gearbox undershield, radiator, dashboard, steering, and front axle.

Identifier  ExFiles\Box 4\9\  09-page016
Date  10th June 1925
  
EXPERIMENTAL REPORT -2- Expl. No. REF: GWH{George W. Hancock - Head Chateauroux}1/Crn10.6.25.

throw the dirt clear of the hole. On the O.S. we found that the engine guard did not come within 1/2" of engine case. This allowed a lot of dirt to come through. Also the end louvre should be carried close up to undershield of gearbox. We have got a square end on this undershield, and the dirt hits this and is forced upwards through the louvre. We should suggest that this louvre is carried close to undershield. We also think that it would be better to round the front end of the undershield, instead of at present, a square end. This would allow the dirt to get away more rapidly than at present being piled up in the top corner. The gearbox undershield protects the gearbox O.K.

RADIATOR TO L.O.P. F.53380

This is O.K. Radiator shutter, and controls to L.O.P. F.53380 - these have worked satisfactorily.

DASHBOARD AND BRACKETS.

D.{John DeLooze - Company Secretary} Type dashboard F.52857, otherwise to L.O.P. F.53341 all supporting bolts to brackets worked loose, also bolts loose holding scuttle. We have tightened all these up.

STEERING COLUMN & BOX.

New stiffer support tube to Drgs. F.53250/1/2/3/4, otherwise to L.O.P. F.5941. Steering column support bracket on dash - all bolts worked loose. These have been tightened up. Steering box support on frame - both bolts worked loose. These have been thoroughly tightened up. Steering at slow speeds - light - wobbles on uneven surface of road. At high speed on good road, steering feels slightly unstable. On rough roads at high speeds, shocks are felt on steering wheel, but are not to be compared with the shocks received from the EAC. steering wheel.

FRONT AXLE TO L.O.P. G.31820.

Friction of pivots modified to M.ch.1926. Lean of pivots O.375" back. Pivots and bearings seem quite O.K. Brake operating shafts G.3182 - fair amount of slack in bearings. Brake drums and shoes in good condition. Slight slack in cross steering tube ball end joints. These have been tightened up. Front O.S. brake bearing hard on toe of lapping shoe. This will have caused steering to pull to O.S., that we reported. We have eased the shoe slightly. N.S.F. hub centre serrations jammed owing to the plating peeling. We have made this O.K. Shafts and bearings in axle operating brakes in good condition. Front shock absorbers checked. Poundage of N.S. 22 O.S. 15 lbs. These have been reset and made 22 lbs. Connecting links slight play at ball ends. These have been re-adjusted.

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