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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).
Required washers and high-speed valve specifications for the EAC carburetter.

Identifier  ExFiles\Box 66a\1\  scan0046
Date  16th March 1925
  
To BY.{R.W. Bailey - Chief Engineer} from Hs.{Lord Ernest Hives - Chair}

X 8080
Hs{Lord Ernest Hives - Chair}4/LG16.3.25.

RE. EAC. CARBURETTER.

Re. memos. BY/SS{S. Smith}6/DB{Donald Bastow - Suspensions}6.2.25 and BY/SS{S. Smith}3/DB{Donald Bastow - Suspensions}28.2.25.

We see that the following information is required :-

WASHERS FOR EAC. CARBURETTER.

The only washers which it should be necessary to disturb for cleaning purposes after the carburetter has been built are :-

Filter E.70394/5 - and
Jet plug washers E.70399.

We recommend that these should be made of soft red fibre.

HIGH SPEED VALVE AND VALVE ROD.

We have found that the valve taper and pitch of actuating thread are quite satisfactory and permit sufficient richening and weakening of the mixture. Therefore no alteration from drawings :- E.71732 and E.71733 should be necessary.

Hs{Lord Ernest Hives - Chair}/ACL.
  
  


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