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).
Technical report on vehicle component performance, including issues with an axle cap thread, water in the crankcase, and conditions in muddy terrain.
| Identifier | ExFiles\Box 1\7\ B001_X15 20 46 50 59-page034 | |
| Date | 1st June 1913 | |
| Wor{Arthur Wormald - General Works Manager}/EH4/L5613. (2) June 1st.1913 the axle is very difficult to get out, and in getting it out the internal thread for this cap has got slightly damaged, the thread is a very fine pitch and apart from being damaged it is very difficult to start. The steel the cap is made of seems very liable to tear up, we have had two cases where it has taken us hours to screw this cap in. I think it would be an advantage to have this thread a little coarser, except for this the Dunlop wheels have behaved excellently; we have not had one case of them creaking and any need to tighten them. When we had the cylinders off we found the rings (with the solid stops) in splendid condition. On all the cars we found water in the crankcase and the drain hole in the fan pulley guard was stopped up with mud so it must have got in that way. The undershields on these cars do not keep out the dirt as well as the standard, they could be improved. There was about 1" of mud in the bottom of them when we took them down. We have been through more mud than you get in England. It is wet here and there is about 3" of slime. A lot of the cars here with honeycomb radiators have guards to prevent the radiator getting filled with mud. I consider this country would be an excellent place to test double rear brakes. On these cars we have here the only part that the average driver would complain of would be the brakes; coming down the Katschberg both brakes | ||