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relay question - iginting relay

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=63961
Printed Date: May 14, 2024 at 9:41 PM


Topic: relay question - iginting relay

Posted By: jay2k3
Subject: relay question - iginting relay
Date Posted: October 06, 2005 at 9:58 PM

my question is, if there is a starter relay on cars, how come there isnt a igniting relay ?????



Replies:

Posted By: auex
Date Posted: October 08, 2005 at 1:28 PM
UH, most cars have a solenoid for the starter(think large relay). This is because the starter takes a massive amount of power to turn the flywheel and start the car.

What do you mean by igniting? The dizzy uses a coil and rotor to distribute power, no need for a relay.

Also there really is no such thing as ignition, at least the way you term it. Most vehicles have relays to control things on the ignition side of the key, like the fuel pump, but there is no single wire coming off the switch that goes to and powers everything.

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