Rolls-Royce Archives
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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).
Recommendations for engine repairs concerning big end and main bearing failures, and second-hand car certification.

Identifier  ExFiles\Box 115\3\  scan0008
Date  7th July 1937
  
-4-

Rm{William Robotham - Chief Engineer}1/R.7.7.37.

C. Big End Failure.
Drill the crankshaft pins and journals, with additional lubrication holes.
Fit large pump.
Cost to Company £30.

D.{John DeLooze - Company Secretary} Main Bearings require taking up for the second time.
Fit a new set of A.C.2 main bearings and drill additional oil holes in pins and journals.
Cost to Company £45
or if it can be run in with an RR.20 £31/10/-.
Cases such as this should not be more than 1% of the total.

E.{Mr Elliott - Chief Engineer} Second-hand Cars.
Endeavour to make the issuing of a certificate of condition after 30,000 miles, contingent upon the applicant paying for a large oil pump.

We attach a sheet which covers the technical details involved in bearing stepping, crankshaft drilling, etc., which it is proposed to circulate to Depots.

Rm.{William Robotham - Chief Engineer}
  
  


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