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Magneto timing, potential issues, and a recommendation for supplying cars with a pre-prepared magneto setup.


Identifier  WestWitteringFiles\I\October1922\  Scan42
Date  4th October 1922 guessed
  
-2- Contd.

dismantled and erected without requiring much skill. It
would, of course, be possible for the magneto to be rotated
one complete turn and for the timing to be wrong. This could
be easily avoided if before the magneto is dismantled the
engine is turned until the marks on the magneto, which can be
seen either in the glass window under the lubricator, or in
the window in the H.T. distributor, coincided.
With no magneto brake there is a rattle in the
drive between the generator and the magneto if there is any
appreciable slack in the joints. This could be avoided by a
different type of joint.
We have not so far received the modified switch
for the magneto or the arrangement of H.T. wiring, but we
anticipate that we shall receive both these items shortly.
We recommend that when a customer insists on
having magneto, the car should be supplied with the magneto
and its drive and controls and switch, all fitted in position
and the magneto timed, but that the contact breaker should be
removed from the magneto and carried on the car. We think if
this is done there will be no delicate parts on the magneto
and it should run for thousands of miles without coming to any
harm, and yet be ready for immediate use. When the time
came for it to be necessary to use the magneto, all that would
have to be done would be to fit in the contact breaker and
connect up the H.T. wires - the engine would then be ready
to run on magneto.

Hs. {Lord Ernest Hives - Chair}
  
  
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).


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