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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).
Instructions for modifications and testing procedures for B.60 and B.80 engine units.

Identifier  ExFiles\Box 155\2\  scan0318
Date  8th May 1939
  
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B.60 NO.1 UNIT - Cont'd.{John DeLooze - Company Secretary}

Whilst the cylinder heads are being changed the Studebaker damper should be removed for fitting to B.80 No.3 unit.

A B.60 type of harmonic damper to be fitted to B.60 No.1 unit.

B.80 NO.2 UNIT.

Whilst waiting for the induction system, carry out unit deflection tests for Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}

When running, carry out investigation of crank and cam oscillations as per previous programme.

This should also include the Buick damper SCD.1275.

No. 2 TEST HOUSE.

Unit being assembled for comparison of Hepworth & Grandage "high point pressure" rings with standard.

Sequence should be as follows with each type:-

Immediately after running in carry out power curve and record the "Blow-By" at each speed.

Run 2 hr. oil consumption runs at 4000 R.P.M., until a constant figure is reached after which repeat "blow-by" figures at each power curve speed.

Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}
[Signature: Swdl{Len H. Swindell}]
  
  


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