Coil Ignition for Motor Cars; A Manual for the Motor Mechanic, Owner-Driver and All Interested in Coil Ignition Systems

Coil Ignition for Motor Cars; A Manual for the Motor Mechanic, Owner-Driver and All Interested in Coil Ignition Systems

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 edition. Excerpt: ...cam. This is made of mild steel, afterwards case hardened. It has six serrations cut upon its periphery. The function of the serrations on the cam is to make contact between two platinum points, one of which is mounted upon a flexible strip. The action of the distributor is that, in its position, the bell crank lever pivoted at will closely follow the contour of the serrations, thus, there will be a number of rises and falls of the bell crank lever during each revolution; to be correct, in this case, six times each revolution. It will be noticed that the lever and cam' are kept in constant contact through the pressure of a spring. A in this diagram is the cam locking screw. This type of breaker required very careful adjustment, not only' for the gap between the contacts when broken, but also for the pressure between the contacts when closed. It has already been pointed out that, in order to make good contact, one of the platinum points is mounted upon a flexible strip. The trouble can be realized when it is considered that the strip in time lost a certain amount of tension. This in turn not only caused bad contact but place-tl the points out of present time, it will not be time wasted if the gap adjustment is dealt with at some length. alignment. As some of these distributors are still in use at the When open, the gap between the contacts should be approximately-01 in. When closed, the flexible strip, or blade, upon which the contact is mounted, should be about-015 in. from the outside clip (Fig. 52). When making any adjustment on this type of breaker, special attention should be paid to the little pig-tail on the contact arm because, if this is broken, it will cause arcing between the contact arm and the stud upon which it...show more

Product details

  • Paperback | 54 pages
  • 189 x 246 x 3mm | 113g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236812379
  • 9781236812377