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).
Letter from the Experimental Department regarding the despatch and examination of pistons.
| Identifier | ExFiles\Box 86\2\ scan0092 | |
| Date | 25th October 1933 | |
| X 2-6 Experimental Dept. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}6/KT. Oct 25th 1933. The Light Production Co. Ltd., Bucking Avenue, Trading Estate, Slough. For the attention of Mr.Brooks. Dear Sirs, We have today despatched to you by parcel post two pistons. One of these is to the original dimensions and seized up after running for a short time, the other was altered by hand filing and has completed 21 hours endurance running. You will observe that there is a slight crack emanating from one of the holes at the top of the skirt. We have carefully examined all the pistons after the 21 hours endurance running, the defect mentioned being the only one we have been able to locate. We are sending you the dimensions to which we endeavoured to hand bed these pistons. We are also sending you six gudgeon pins * as requested; this leaves us without a spare in case of failure. We confirm that you will send us a set of scraper rings having increased bearing area on the lands so as to increase the oil consumption and ensure that the pistons will not run quite so dry. We thank you for the prompt way in which you have dealt with this matter. We are proposing to run a set of pistons we have on the road pending receipt of the pistons altered to overcome the defects which have been | ||