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<div> <font size="3">This is classic motor/generator stuff. The primary difference between a motor and a generator is the direction of power flow. Put electric power in, get rotation out you have a motor. Put rotational energy in, get electricity out you have a generator.</font></div>
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<div><font size="3">What happens here is the fan acts as a motor most of the time but when you switch off the electric power goes away and the fan motor, being turned by the fan blades, becomes a generator until such time the fan slows enough that the output voltage is too low to support the ignition coil.</font></div>
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<div><font size="3">If you find this annoying, the easy fix is to add a relay that is powered from the white wire and run power to the contacts from the brown wire.</font><br>
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<div style="clear:both"><font size="4">Dave </font><br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: Alex & Janet Thomson <aljlthomson@charter.net><br>
To: 'Jim Henningsen' <trguy75@gmail.com>; 'triumphs' <Triumphs@autox.team.net><br>
Sent: Tue, Feb 26, 2019 7:08 pm<br>
Subject: Re: [TR] TR4 engine question<br>
<br>
<div dir="ltr">Any chance that the coil is receiving a back feed from somewhere, after the<br clear="none">ignition switch is shut off? Maybe not a full 12 v but just enough to create<br clear="none">a weak spark?<br clear="none"><br clear="none">Alex Thomson<br clear="none"><br clear="none">-----Original Message-----<br clear="none">From: Triumphs [mailto:<a shape="rect" ymailto="mailto:triumphs-bounces@autox.team.net" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="mailto:triumphs-bounces@autox.team.net">triumphs-bounces@autox.team.net</a>] On Behalf Of Jim<br clear="none">Henningsen<br clear="none">Sent: Monday, February 25, 2019 8:29 PM<br clear="none">To: 'triumphs'<br clear="none">Subject: [TR] TR4 engine question<br clear="none"><br clear="none">Fresh TR4 engine that does that "dieseling" thing after you turn off the<br clear="none">key. It like it tries to keep running but with a cough and then stops. The<br clear="none">TR6 has an anti-run on valve to help with that. What do I treat on a TR4<br clear="none">motor? P.S. So proud that after 8 years putting my 4 back together stock,<br clear="none">I won first place in the sports car group at the AACC winter national. <br clear="none">Thanks<br clear="none">Jim Henningsen<br clear="none">Ocala, FL<br clear="none"><br clear="none">61 TR3A<br clear="none">62 TR4<br clear="none">75 TR6<br clear="none"><br clear="none"><br clear="none"><br clear="none">** <a shape="rect" ymailto="mailto:triumphs@autox.team.net" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a> **<br clear="none"><br clear="none">Donate: <a shape="rect" target="_blank" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="http://www.team.net/donate.html">http://www.team.net/donate.html</a><br clear="none">Archive: <a shape="rect" target="_blank" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="http://www.team.net/pipermail/triumphs">http://www.team.net/pipermail/triumphs </a> <a shape="rect" target="_blank" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="http://www.team.net/archive">http://www.team.net/archive</a><br clear="none"><br clear="none">Unsubscribe/Manage:<br clear="none"><a shape="rect" target="_blank" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="http://autox.team.net/mailman/options/triumphs/aljlthomson@charter.net">http://autox.team.net/mailman/options/triumphs/aljlthomson@charter.net</a>
<div class="yqt4121441990" id="yqtfd72717"><br clear="none"><br clear="none">** <a shape="rect" ymailto="mailto:triumphs@autox.team.net" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a> **<br clear="none"><br clear="none">Donate: <a shape="rect" target="_blank" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="http://www.team.net/donate.html">http://www.team.net/donate.html</a><br clear="none">Archive: <a shape="rect" target="_blank" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="http://www.team.net/pipermail/triumphs">http://www.team.net/pipermail/triumphs </a> <a shape="rect" target="_blank" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="http://www.team.net/archive">http://www.team.net/archive</a><br clear="none"><br clear="none">Unsubscribe/Manage: <a shape="rect" target="_blank" rel="noopener noreferrer" removedlink__c63fc553-1191-4df6-93da-cf81d7631376__href="http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com">http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com</a><br clear="none"></div>
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