<font color='black' size='2' face='arial'>Wood is a terrible material for a heat sink. It is a much better insulator. If it actually solved some problem,(I doubt it), it is probably because it insulated the fuel line from absorbing more heat rather than removing heat from the line. So, insulating the fuel line in the engine bay would be much better approach than a few cloths pins. <br>
Gary Hodson<br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: i erbs <eyera3000@gmail.com><br>
To: Alan Seigrist <healey.nut@gmail.com><br>
Cc: Ahealey help <healeys@autox.team.net><br>
Sent: Fri, Aug 10, 2018 11:40 am<br>
Subject: Re: [Healeys] AH100 v's A90 Engines.<br>
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<div dir="auto">I used wooden clothes pins as heat sinks back in the day on my 65 Oldsmobile<br>
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<div>Ira Erbs<br>
Portland, OR<br>
typos and artifacts are the fault of my phone</div>
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<div dir="ltr">On Fri, Aug 10, 2018, 1:37 AM Alan Seigrist <<a href="mailto:healey.nut@gmail.com" target="_blank" rel="noopener noreferrer">healey.nut@gmail.com</a>> wrote:<br>
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<div dir="ltr">Alan -
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<div>I have both cars. That's basically the only difference. The A90 also uses a mechanical pump which is on the left front of the block, generally works pretty well except it is susceptible to vapor lock being below the manifolds, so the truck from old A90 guys is to wire a piece of wood to the fuel line that acts as a heat sink and then no more vapor lock!</div>
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<div>Cheers,</div>
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<div>Alan</div>
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<div dir="ltr">On Fri, Aug 10, 2018 at 1:00 AM Bluehealey <<a href="mailto:bluehealey@gmail.com" target="_blank" rel="noopener noreferrer">bluehealey@gmail.com</a>> wrote:<br>
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<div class="aolmail_MsoNormal">Team.<u></u><u></u></div>
<div class="aolmail_MsoNormal">I have both an AH100 and an A90 engine sat side by side on my garage floor. It is known that the AH100 was developed to take advantage of the A90 Atlantic mechanicals and therefore I assumed that the A90 and AH100 engines were essentially the same.<u></u><u></u></div>
<div class="aolmail_MsoNormal">When externally comparing these two engines there is a minor difference between them that surprises me. The AH100 distributor mounting base on the block has bolt holes tapped into bosses each side of the distributor hole. The A90 has a single boss and a single tapped hole.<u></u><u></u></div>
<div class="aolmail_MsoNormal">This indicates to me that the AH100 engine had its own block casting at the very least, and perhaps other variations too.<u></u><u></u></div>
<div class="aolmail_MsoNormal">Could someone advise if there any other significant differences between the AH100 and A90 engines?<u></u><u></u></div>
<div class="aolmail_MsoNormal">Many thanks.<u></u><u></u></div>
<div class="aolmail_MsoNormal">AlanB<u></u><u></u></div>
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