Hudson Super Six 1916, Справочник

Страница: 55 / 77

The rotor carries a contact button (Page 58) which serves to close the high tension circuit to the spark plug in
the proper cylinder.
Beneath the distributor head and rotor is the timer. This is provided with a screw in the center of the shaft, the
loosening of which allows the cam to be turned in either direction to secure the proper timing; turning in a
clockwise direction to advance and counter-clockwise to retard.
Page 57 shows the top of the distributor with head and rotor removed. The construction of the contact points,
breaker arm, and cam differs considerably from last year's model. The cam action in this instance opens the
contact points while the closing is brought about by means of a flat spring.
See that the contact points, breaker and spring are in perfect condition and work freely. The contact spring
should press the contact points firmly together when the cam is on contact. If the contact points show signs of
pitting or burning they should be cleaned up so they have sufficient contact.
Sometimes a file is used to clean these points, with the result that the contact surfaces are not parallel. Do not
file the points unless they are badly pitted. Contact points can be cleaned with a piece of very fine sand paper.
Before setting the ignition timing, it is essential that the contact points on the timer have a proper gap (See
Page 57). If the gap is changed after timing the cam, the ignition timing will also be changed. The gap should be
.018".
The mechanism for operating the automatic spark advance is shown on Page 58. The weights which are
mounted on the disc move outwards as the speed increases, overcoming the resistance of the springs.