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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).
Production specification document for the 25 HP flexible engine mounting on the F.2 Series chassis.

Identifier  ExFiles\Box 104\1\  scan0170
Date  28th July 1934
  
c.Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
BY/SS.{S. Smith}2/J.28.7.34.

25 HP. Flexible Engine Mounting - Production Specification.

We give below the specification of the Flexible Engine Mounting which is being instructed for the 25 HP. Chassis F.2 Series.

Any comments on this specification should be made at once as we are already passing our instructions on to the Order Office.

Front Mounting. RAD RUBBER. LEC 3940✓
LeC. 3931 - Flexible Front Engine Mounting.✓
LeC. 3912 - Tie Rods for Engine.✓
LeC. 3940 - Modification to Radiator Escape Pipe.✓
LeC. 3942 - Engine Support Feet. ?

Rear Mounting.
LeC. 3909 - Flexible Rear Engine Mounting.✓
LeC. 3937 - Modification to Gear Box Rubbers & Brackets. X OK✓
N.Sch.4130 - Modification to Rear Engine Mounting (Reverse Shaft Cover) X
N.Sch.4133 - Modification to Gear Box Rear End Covers. X
N.Sch.4119 - Tie Rod for Engine
N.Sch.4138 - (2nd.issue) Angle Stiffener on Gear Box Crossmember.✓
Mod for N.Sch 4130 ?

Pedals.
LeC. 3893 - Cantilever Pedals. (Bracket modified by N.Sch.4119)✓

Exhaust System.
LeC. 3914 - Universal Suspension for Silencer & Rear Exhaust Pipe. (Protected Suspension Link from LeC.3973. 40/50 HP.)✓
LeC.4059 - Support for Intermediate Exhaust Pipe (Supersedes LeC.3943).✓

A design is required for a flexible petrol pipe between the Autovac and Induction Pipe. E

The following design drawings are not incorporated for the reasons stated.

LeC. 3891 - Centrally Mounted Radiator. (This is not fitted to 10,000 Miles Car.)
N.Sch.4122 - Modification to Propeller Shaft and Gear Box Cross-member. (The Slipper Flywheel is not standardised for the 25 HP. Chassis).

Cont'd.{John DeLooze - Company Secretary}
  
  


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