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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).
Inclusion of a double-ended spanner in the tool kit for adjusting tappets.

Identifier  ExFiles\Box 16\6\  Scan064
Date  9th August 1932
  
x7580.

To Mx.{John H Maddocks - Chief Proving Officer}

Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}1/KT.9.8.32.

TOOL KIT (Mx{John H Maddocks - Chief Proving Officer}3/T8.8.32.) x5580

We presume that the double ended spanner referred to, is used for adjusting tappets on 20/25 HP cars.

We went thoroughly into this question at the time of the revision of the kit, and it was considered that the little extra inconvenience caused by using double ended spanners for tappet adjustment was more than compensated for by the cost saving. If single ended spanners are used for this one job then other single ended spanners must be used, because three spanner sizes are involved.

After all it is very seldom that a customer has to adjust his tappets. Again double ended spanners were used on 20 HP. cars for a long time prior to the adoption of the single ended type.

Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}
  
  


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