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).
Fault summary report detailing issues with exhausts, down pipes, and engine overoiling across various models.
| Identifier | ExFiles\Box 47\3\ Scan336 | |
| Date | 1st December 1931 guessed | |
| -8- EXHAUST WASHERS BLOWING. 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. December Quarter. C.C. 8 15 1 1 25 ) 26 W.P. - - - 1 1 ) Not recorded separately last quarter. 20/25 HP. new steel washers with all copper shell instead of half brass and half copper, to cure blows are now available. THREE MONTHS. 8 15 1 2 26 26 EXHAUST BLOWS GENERALLY AND CUTOUT SEIZED OR RATTLE. December Quarter. C.C. - 9 - 41 50 ) 70 W.P. - - - 20 20 ) This trouble on Ph.II is caused by the sliding joint not working, and is definitely cured by modifying the sliding joint as per Depot Sheet Hd.{Mr Hayward/Mr Huddy}199 and fitting an additional stay to the rear silencer as per Depot Sheet No.Hd.{Mr Hayward/Mr Huddy}218. Previous " C.C. - - - 17 17 ) 23 W.P. - - - 6 6 ) Six months. - 9 - 84 93 93 DOWN PIPE FLANGE CRACKED. December Quarter. C.C. 10 15 - - 25 ) 29 W.P. 2 2 - - 4 ) Not recorded separately last quarter. 20 HP. A re-inforced downpipe flange is being used on all 20 HP. cars to cure blows. See Depot Sheet No. Hd.{Mr Hayward/Mr Huddy}201. THREE MONTHS. 12 17 - - 29 29 ENGINE OVEROILING. December Quarter. C.C. - 8 10 18 ) 63 W.P. 2 16 27 45 ) The majority of these are top over-oiling and definitely cured by restricting the oil flow at the valve end of the rockers. See Depot Sheet Hm.{Capt. W. Hallam - Head Repairs}147, Hd.{Mr Hayward/Mr Huddy}174 and Hd.{Mr Hayward/Mr Huddy}176. Previous " C.C. - 12 16 28 ) 77 W.P. 2 19 28 49 ) Six months. 4 55 81 140 140 | ||