Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Specification sheet detailing the water system, engine mounting, clutch, gearbox, rear axle, and brakes.

Identifier  ExFiles\Box 21\6\  Scan088
Date  27th October 1932
  
-5- HW/14d.3/KT.27.10.32

Water System.
Cooling is by centrifugal pump circulation. The pump is mounted on the front end of the cylinder head and is driven by a belt. An extension of the pump driving pulley carries the four bladed sheet metal fan. There is no temperature control provided. The radiator is the vertical tube type made by the Mecord Radiator & Mfg. Co. The total water capacity is 4 gallons. The radiator is bolted to the front crossmember by two bolts; a piece of hard insertion rubber sheet is trapped between the crossmember and the bottom of the radiator.

Engine Mounting.
A three point rubber engine mounting is employed, details of which are appended.

Clutch.
A single plate cork faced clutch is used and it runs in oil.

Gearbox.
Unit construction; three forward speeds and reverse. Ratios, top 1:1, 2nd 1.61, 1st 2.42, Reverse 3.5
Constant mesh helical gears on second speed, no synchro mesh or free wheel. There is a device fitted which reduces the load of the selector springs when the clutch pedal is depressed.

Rear Axle.
A semi floating rear axle is employed fitted with hypoid gears. 9/41 ratio. 6.00 x 18" tyres at 26 lbs/sq.in. pressure giving 3000 engine r.p.m. in top gear at 60 m.p.h.

Brakes.
Bendix cable operated brakes are used in 9" diameter drums. Welded sheet steel shoes are used. Lining width 2". Brake lining area per drum = 28 sq.in.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙