<div dir="ltr"><div class="gmail_default" style="color:#3333ff">Having just this week replaced the tach cable on my 100 I can attest that it is on the left side of the engine. While it might be possible to attack it from above in most cars the CAB on my LeMans precluded that but It is fairly easy to get at from underneath.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Wed, May 14, 2025 at 12:52 AM Patrick and Caroline Quinn <<a href="mailto:p.cquinn@outlook.com">p.cquinn@outlook.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-7106260312604933620">
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<p class="MsoNormal"><span style="font-size:11pt">G’day<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">In a four-cylinder engine in the BN2 the tach drive is located on the driver’s side (LHD car) on the side of the block under the exhaust.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">IN a six-cylinder it’s off the distributor drive on the other side.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Hoo Roo<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Patrick Quinn<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Blue Mountains, Australia<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11pt;font-family:Calibri,sans-serif">From:</span></b><span lang="EN-US" style="font-size:11pt;font-family:Calibri,sans-serif"> Healeys <<a href="mailto:healeys-bounces@autox.team.net" target="_blank">healeys-bounces@autox.team.net</a>>
<b>On Behalf Of </b>Bob Spidell via Healeys<br>
<b>Sent:</b> Wednesday, 14 May 2025 12:32 PM<br>
<b>To:</b> Michael Salter <<a href="mailto:michaelsalter@gmail.com" target="_blank">michaelsalter@gmail.com</a>><br>
<b>Cc:</b> Healeys <<a href="mailto:healeys@autox.team.net" target="_blank">healeys@autox.team.net</a>><br>
<b>Subject:</b> Re: [Healeys] BN2 Incontinence<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal" style="margin-bottom:12pt">Ah, yeah, now I remember having to route the OP line across the scuttle. But, the tach drive is off the distributor, on the R/H side, no? I replaced the seal when we rebuilt the engine.<br>
<br>
Tappet cover, IIRC, is on the L/H side; that was my first guess since the oil isn't contaminated (until it hits the pavement). I didn't learn until after the rebuild that one of the tappet cover screws has to be shorter, lest one of the tappets hit it; always
wondered if I did that right or not. <br>
<br>
bs<u></u><u></u></p>
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<p class="MsoNormal">On 5/13/2025 7:22 PM, Michael Salter wrote:<u></u><u></u></p>
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<p class="MsoNormal">The oil pressure take off is on the right side of the engine Bob. My guess would be the tachometer drive, the seal on the shaft hardens and cracks ( probably only about 70 years old, they don't make them to last) or the tappet cover. I
have found that the tappet cover screws need to be gently retightened af a few hours of operation. On the 100S they were all lock wired which tells you something!!
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<p class="MsoNormal">M<u></u><u></u></p>
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<p class="MsoNormal">On Tue., May 13, 2025, 9:46 p.m. Bob Spidell via Healeys, <<a href="mailto:healeys@autox.team.net" target="_blank">healeys@autox.team.net</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal" style="margin-bottom:12pt">Listers,<br>
<br>
Just noticed, after a short local drive my BN2 was peeing oil out the <br>
driver (L/H) side of the engine. I won't get to a diagnosis and fix for <br>
a couple weeks; just wondering if anybody has a guess. My first thought <br>
was the OP gauge fitting came loose or the line broke, but the gauge was <br>
indicating fine as was the temp gauge.<br>
<br>
Any guesses?<br>
<br>
Bob<br>
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