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).
Fitting difficulties and proposing solutions for the magneto ignition on a 20 HP car.
| Identifier | WestWitteringFiles\K\July1923\ Scan61 | |
| Date | 3rd July 1923 | |
| To R.{Sir Henry Royce} From Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to EY. ORIGINAL MAGNETO IGNITION FOR 20 HP. CAR. X3551 (crossed out) X4327 We have fitted up a car with the Magneto Drive made to LeC.1724. We are very pleased with the Drive and the method of engaging and disengaging. There is a certain amount of difficulty in timing the Magneto due to the fact that the Magneto, being fixed to the bracket by means of studs and dowels and the studs being rather long, it means the Magneto must be lifted up a long way before the drive can be disengaged. In getting out the bracket we suggest that short dowels and set screws might be used. With reference to the wire to the Magneto, we find that the best place to fix the tube is as shown on the attached blue print. There is a certain amount of difficulty in getting a wiring tube across the engine. With the upright steering there is very little room between the floorboards, dashboard and engine. At present we have a control tube running across the engine which will just take the wire. We suggest that this tube might be made larger and we use it for protecting the wire. Another alternative is to carry the tube for the wire on the same brackets as the control tube. Another point in connection with fitting the Magneto is the question of control for advance and retard. We think it is undesirable to be moving the contact breaker for the Magneto contd.. | ||