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).
Test notes on engine rattles related to a special crankshaft ferodo with clichered webs.
| Identifier | ExFiles\Box 25\3\ Scan017 | |
| Date | 14th June 1911 | |
| R.R. 148 '20 M) (W 414. 13.4.11) G 1616. X634 H100 crankshaft ferodo special crankshaft clichered webs only. Engine rattles No slipper wheel. now standard taken on H179, loose connect body. tested on 1659 but standard 14/6/11 ofg Ernie filter at 6-50 lbs stop. Engine speed. old chfs mtn h (24) 755. 850 (37) 1120 (45.85) 1160 - 1350 (56) 1700 more pronounced no noticeable thuds. etc. actors below ?.22 w. for h.{Arthur M. Hanbury - Head Complaints} 3rd. (To compare with 2 1/2" card see other card) 22 gen 29-1/2 24.28. - V.{VIENNA} Slight, not noticeable ? 3 6.37 - Bad 35-1/2 44. - just noticeable 56. (1st/34a) 2nd - V.{VIENNA} bad. Correct record as tested from C.P. Ilmes fore. 14/6/11 Retested with solid cam and not rumble as bad but clattered E.S. New, bad, just as bad all round. R.P. 13/4/11 | ||