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BenJB
Ben Branch

(6 posts)

Registered:
05/20/2019 03:00AM

Main British Car:


A Question About A New Starter Motor
Posted by: BenJB
Date: June 05, 2019 03:31PM

Just bought a new starter to replace my current one as the solenoid is on the way out.

The new starter has two terminals but the old starter has three, I'm assuming the white wire is for the ballast resistor, is this correct and does the white wire need to be connected or can I just not connect it/seal it off?

The new starter came from here: [www.classiccarperformance.com] and it's listed as a plug and play replacement.

I've contacted them about this issue and they told me which wire was for the ignition and which is power, but didn't seem to be able to help further.

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88v8
Ivor Duarte
Gloucestershire UK
(645 posts)

Registered:
02/11/2010 04:29AM

Main British Car:
1974 Land Rover Lightweight V8

Re: A Question About A New Starter Motor
Posted by: 88v8
Date: June 06, 2019 06:01PM

The ballast and its associated 1,5 ohm ballast coil are useful if you are still running a points dizzy, as they reduce the voltage across the points and so increase their life,.
With a Lumenition or other electronic system the ballast setup becomes rather pointless so to speak.

Assuming your ballast is still serving a useful purpose, start by checking that the white wire goes direct to the + side of the coil. Its function is to bypass the ballast thus giving a higher voltage whilst starting, which is the other benefit of the ballast system.
You can connect the white wire to the solenoid feed on the starter.

While you are in the ignition, check that you actually have the correct coil. Sometimes they are ignorantly replaced with a standard coil that then gives a lousy spark when ballasted.
With the LT connectors removed, your DVM should show around 1.5 ohm across the coil. If you see 3 ohm, you have a standard coil, which is no good with a ballast.

Ivor


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