Automotive Dictionary: Contact Breaker

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Automotive Dictionary: Contact Breaker


Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
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Contact Breaker


Contact Breaker Contact Breaker
In conventional ignition, the automatic switch formed by the contact-breaker points in the distributor which are forced apart by 'humps' on the distributor shaft bearing against a fibre block on the contact breaker arm. Spring pressure closes the points after the 'hump' has passed its peak and the make-and-break pattern established switches on and off the flow of electricity in the primary winding of the coil.
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