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).
Cracked pistons and damaged connecting rod bearings.

Identifier  ExFiles\Box 82\1\  scan0205
Date  18th August 1937 guessed
  
- 2 -

Pistons were taken out and N°3, 4 and 6 have started to crack. The crack starts in the hole drilled at the end of the slot in the centre bottom side. N°4 piston the crack has almost extended to the bottom. We are sending you two pistons so that you can see where the trouble starts.

CON ROD BEARINGS

N°1, 2, and 6 big end bearings have pieces of metal out. N°6 is in a poor condition especially the top half metal is badly cracked and pieces out.

GWHancock

G.W.H.
  
  


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