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 report on cylinder deposits from a 1EX car fitted with an exhaust heated throttle using 5% paraffin.
| Identifier | ExFiles\Box 50\3\ Scan156 | |
| Date | 16th August 1921 | |
| TESTS TAKEN WITH 1EX CAR FITTED WITH EXHAUST HEATED THROTTLE - 5% PARAFFIN. CYLINDERS. Mixture deposited in bottles. 2 oz. bottles holding approx. 4 cu. in divided into 16 teaspoons. | Tests. | 1 | 2 | 3 | 4 | 5 | 6 | Atmospheric temp. | Dates. | |---|---|---|---|---|---|---|---|---| | 1 | O | O | h T.S. | 5 1/2 T.S. | 2 drops | O | 33.5°C drop to 22°. | 16.8.21 | | 2 | O | O | 2 drops | 3 drops | 3 drops | O | | | | 3 | O | O | 3 T.S. | 12 T.S. | 1/2 T.S. | O | | | | 4 | O | O | 1/2 T.S. | 1 drop | 1 drop | O | | | | 5 | O | O | 12 drops | 2 1/2 T.S. | 1/2 T.S. | O | | | | 6 | O | O | O | O | O | O | | | | 7 | O | O | 2 drops | 1/2 T.S. | O | O | | | | 8 | O | O | O | 6 drops | O | O | | | | 9 | O | O | O | O | O | O | | | | 10 | O | O | O | O | O | O | | | | 11 | O | O | O | O | O | O | | | | 12 | O | O | 6 drops | 6 drops | 6 drops | O | 15°C | 17.8.21. | | 13 | O | O | O | 6 drops | 2 drops | O | | | | 14 | O | O | 1/2 T.S. | 1/2 T.S. | 2 drops | O | 18°C | | | 15 | O | 1 drop | 4 drops | 1/2 T.S. | 6 drops | O | | | | 16 | O | O | 1 drop | 1 drop | 1 drop | O | | | | 17 | O | 1 drop | 1 drop | 3 drops | O | 22.5°C | Thick valve fitted 18.8.21. | | 18 | O | O | 2 T.S. | 8 1/2 T.S. | O | O | | | | 19 | O | O | 1 T.S. | 5 T.S. | O | O | 28°C | | CONTD:- (Text in left margin: R.R.E. Mills. (100) S.981. 7-12-20. G 2647) | ||