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).
Exhaust silencer faults and failures, categorized by type, model, and time period.
| Identifier | ExFiles\Box 130\1\ scan0228 | |
| Date | 14th May 1935 guessed | |
| - 5 - EXHAUST SILENCER CORRODED. 25 HP. PH.II. TOTAL. GRAND TOTAL. REMARKS. March Quarter. C.C. 3 8 11) All silencers are now being Parkerised C.P. 1 1 2) 13 and a longer life is expected. Previous Quarter. C.C. 1 15 16) C.P. - 1 1) 17 Six Months. 5 25 30 30 EXHAUST BLOWS GENERALLY AND CUT-OUT SEIZED OR RATTLE. March Quarter. C.C. 12 23 35) This trouble on Ph.II is caused by the C.P. 25 19 44) 79 sliding joint not working properly and is cured by modifying the sliding joint Previous Quarter. C.C. 18 30 48) and fitting an additional stay to the C.P. 17 21 38) 86 rear silencer as per Depot Sheets Hd.{Mr Hayward/Mr Huddy}199 and Hd.{Mr Hayward/Mr Huddy}218. Six Months. 72 93 165 165 FRONT EXHAUST SILENCER CRACKED. March Quarter. C.C. - - -) C.P. - - -) - Previous Quarter. C.C. - 5 5) C.P. - 1 1) 6 Six Months. - 6 6 6 SILENCER CRACKLES. March Quarter. C.C. 7 - 7) C.P. 6 - 6) 13 Previous Quarter. C.C. 6 - 6) C.P. - - -) 6 Six Months. 19 - 19 19 | ||