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).
Issues found during tests on the spring drive, a retaining bolt, and induction/exhaust pipes.
| Identifier | WestWitteringFiles\G\August1921\ Scan34 | |
| Date | 1st August 1921 | |
| contd. -2- Hal/LGS. 8. 21. ************ Spring Drive. When making tests on the Spring Drive, we finally assembled it as we imagined, standard. We found by the terrific noise which came from the engine, that the friction flywheel was locked solid. This was caused by the end friction plate, which also has recesses for the friction springs, being fitted in the wrong serration in the spring drive. This made it so that the recess for the springs in the friction flywheel did not line up with the recess in the friction plate, consequently, when the flywheel was bolted on the springs were cross-wound and jammed solid. We consider that this piece should be made so that it is impossible to do this. In bolting up the flywheel it is impossible to see whether the springs are being pulled up square. Retaining bolt for spring drive. We have trouble with the stud in the end of the crank-shaft turning round. This stud holds the oil cap on at one end and at the other end carries a nut and washer for retaining the spring drive. We have found in removing the spring drive that the stud turns round, which makes it very difficult to undo the nut. There is a taper bush on this stud and fits in the crankshaft; we suggest that if this was solid with the stud, that it should prevent it from turning. Induction and Exhaust Pipes. We have difficulty in getting the spanner on the nuts holding the inlet and exhaust pipes. We admit the pipes are not quite to drawing but with cast iron pipes we suggest we have got to expect variations. We recommend that the bosses are contd. | ||