MISFIRING TROUBLES
If the engine of your car begins to misfire the fault can be due to any one of several causes. Misfiring is often caused by a spark plug wire coming off a plug terminal and resulting in the complete and sudden cutting out of one cylinder. Snap-on terminals of spark plug wires made of thin metal rolled up into tubes are sometimes of poor design and quality. They need pinching together occasionally so that they clip securely on to the plugs. The small brass cap on top of the plug should be tightened well before the wire terminal is snapped on. Intermittent misfiring is often caused by a faulty plug. In an old engine the plug can become fouled with oil which has by-passed worn piston rings. Other common spark plug faults include the cracking of a plug’s ceramic insulation, poor spacing of plug electrodes, or in damp weather the accumulation of dust on the outside of the spark plugs. Dust and dirt on the distributor cap and maladjusted or worn contact-breaker points can also cause misfiring.
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Press, Volume CIV, Issue 30715, 2 April 1965, Page 11
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179MISFIRING TROUBLES Press, Volume CIV, Issue 30715, 2 April 1965, Page 11
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