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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).
30 HP car, GUL-20, with a sticking oil relief valve due to bad fitting and burrs.

Identifier  ExFiles\Box 130\2\  scan0063
Date  7th July 1936
  
COPIES SENT TO E.{Mr Elliott - Chief Engineer} BY.{R.W. Bailey - Chief Engineer} Sft.{Mr Swift}
C O P Y.
Cricklewood.
7.7.36.

To G.W.H.
Chateauroux.

Another 30 HP. car came in to-day, GUL-20, only done 626 miles. Very bad slow running and no oil pressure.

Trouble:- Oil relief valve sticking.

I had a look at the valve and it is covered all over with burrs.

It must have been put in straight off the machine. It was also a tight fit in the bore.

It seems to me that all these troubles are due to bad fitting right from the start. A thing like this could be the seizure of an engine to an unobservant driver.

Hs{Lord Ernest Hives - Chair}/K.F.Scholes.
  
  


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