<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><title></title></head><body><p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Hello Mike,<br /></span></p>
<p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">I still suspect the master switch, or the white/black wire to it.</span></p>
<p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">To check this, just take the white/black wire off the distributer and coil. And instead make a temporary connection (wire) from coil to distributer. And now make a test drive.</span></p>
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<p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Cheers,</span></p>
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<p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Josef Eckert</span></p>
<p style="margin: 0px;"><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Konigswinter/GERMANY</span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal" style="border: none; padding: 0in;"><strong>From: </strong><a href="mailto:michaelsalter@gmail.com" rel="noreferrer noreferrer">Michael Salter</a><br /><strong>Sent: </strong>Thursday, September 29, 2022 8:10 AM<br /><strong>To: </strong><a href="mailto:healey.nut@gmail.com" rel="noreferrer noreferrer">Alan Seigrist</a><br /><strong>Cc: </strong><a href="mailto:healeys@autox.team.net" rel="noreferrer noreferrer">Healey list</a><br /><strong>Subject: </strong>Re: [Healeys] Austin Healey 100 Misfire Diagnosis.</p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Thanks to all who have obviously given this misfire issue considerable thought. I will be sure to check all suggestions. <u></u><u></u></p>
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<p class="MsoNormal">I should like to point out however that it is the immediate vanishing of the misfire after filling the fuel tank that has me confused. <u></u><u></u></p>
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<p class="MsoNormal">This has happened three times simce the problem appeared.<u></u><u></u></p>
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<p class="MsoNormal">I just don't understand how an ignition problem could change as a result of filling the tank.<u></u><u></u></p>
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<p class="MsoNormal">Furthermore I'm convinced that this is not a fuel starvation problem because the amount of engine power being used has no effect.<u></u><u></u></p>
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<p class="MsoNormal">Totally baffled.<u></u><u></u></p>
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<p class="MsoNormal">Thanks again to all ... I'll report back.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Thu., Sep. 29, 2022, 9:14 a.m. Alan Seigrist via Healeys, <<a href="mailto:healeys@autox.team.net" rel="noreferrer noreferrer">healeys@autox.team.net</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">Hi John -<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Yes, that was the point I was trying to make, sorry if it fell through bad interpretation! As Ed McMahon used to say, "You Are Correct Sir!"<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Cheers,<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Alan<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Thu, Sep 29, 2022 at 7:53 PM john harper <<a href="mailto:ah100tech@gmail.com" rel="noreferrer noreferrer">ah100tech@gmail.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">Alan<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Coils can fail with heat and then recover when cooled. I had one that had these symptoms and when looking closely I saw that the insulating oil had run out through a very small crack in the bottom of the case.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Thu, 29 Sept 2022 at 10:34, Alan Seigrist <<a href="mailto:healey.nut@gmail.com" rel="noreferrer noreferrer">healey.nut@gmail.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">Michael -<br /><br />Just as a follow up to my email since the symptoms seem to manifest themself ... <u></u><u></u></p>
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<ul type="disc">
<li class="MsoNormal">whether the car is warmed up or not - this typically will exclude anything related to fuel or the coil<u></u><u></u></li>
<li class="MsoNormal">whether the car is under load or not - this typically will exclude anything related to fuel<u></u><u></u></li>
<li class="MsoNormal">whether the choke is pulled or not - this typically will exclude anything related to fuel<u></u><u></u></li>
<li class="MsoNormal">somewhat intermittent but systematically under all conditions - suggests to me wiring / ground issues<u></u><u></u></li>
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<p class="MsoNormal">Given this I'd check (as a priority):<u></u><u></u></p>
<ul type="disc">
<li class="MsoNormal">Battery Master (when these fail they will ground the coil)<u></u><u></u></li>
<li class="MsoNormal">primary ignition wire (white) from the switch to coil (cycle the connections)<u></u><u></u></li>
<li class="MsoNormal">motor ground straps (cycle the connections)<u></u><u></u></li>
<li class="MsoNormal">loose wires in the dizzy<u></u><u></u></li>
<li class="MsoNormal">loose ignition wires into the dizzy or spark plug<u></u><u></u></li>
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<p class="MsoNormal">Other things to possibly do (as secondary):<u></u><u></u></p>
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<ul type="disc">
<li class="MsoNormal">replace rotor<u></u><u></u></li>
<li class="MsoNormal">replace dizzy cap<u></u><u></u></li>
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<p class="MsoNormal">I don't think it would be contacts or condensor simply because this would either be very regular all the time, or maybe sensitive to temp.<br /><br />Best,<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-bottom: 12pt;">Alan<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Thu, Sep 29, 2022 at 4:46 PM Bob Spidell <<a href="mailto:bspidell@comcast.net" rel="noreferrer noreferrer">bspidell@comcast.net</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal" style="margin-bottom: 12pt;">re: "... I don’t recall if that wire is separate from the distributor wire ..."<br /><br />It is (or should be). If the battery switch is in the 'OFF' position it grounds the coil primary so no spark.<br /><br /><u></u><u></u></p>
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<p class="MsoNormal">On 9/28/2022 8:34 PM, Alan Seigrist wrote:<u></u><u></u></p>
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<p class="MsoNormal">Hi Michael -<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Have you tried cycling the connections on the white wire from the ignition switch to the coil, and also from the coil to the distributor.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">You might also want to try disconnecting the black and white wire at the coil from the battery master switch - if it’s failing you’ll get weird symptoms like this. If that wire is disconnected the car should run no problem. I don’t recall if that wire is separate from the distributor wire, if it isn’t you’ll have to disconnect it from underneath the master switch itself.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Best,<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Alan<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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