<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal> The carbs I have on hand have the most common, and perhaps the correct piston rod AUC8112. Also found AUC8114. My factory 3000/BJ8 parts book covering the HD8 carbs has conveniently disappeared for the moment so I can not verify what part the factory called for. The weight of the piston body (very small weight at the end of the damper rod) should not have a bearing on the operation as it can only move vertically 1/16 inch and is otherwise fixed in place. I checked the diameter of the piston body on several and they all appear to be the same. The diameter would seem to be much more important for proper carb operation. </p><p class=MsoNormal>I had asked the SU dealer in England for guidance for use of the different numbered parts but have not heard back, thus this convoluted email to the list.</p><p class=MsoNormal>P</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:healeys@autox.team.net">richard mayor via Healeys</a><br><b>Sent: </b>Wednesday, July 1, 2020 12:34 PM<br><b>To: </b><a href="mailto:healeys@autox.team.net">healeys</a><br><b>Subject: </b>[Healeys] Fwd: HD8 dashpot damper part #s</p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>From the various responses I received it seems that AUC8112 is the correct damper for the HD8s. The main difference between the dampers that I can observe appears to be the size of the very small weight at the end of the damper rod. </p><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>---------- Forwarded message ---------<br>From: <b>richard mayor</b> <<a href="mailto:boyracer466@gmail.com">boyracer466@gmail.com</a>><br>Date: Tue, Jun 30, 2020 at 6:10 PM<br>Subject: HD8 dashpot damper part #s<br>To: healeys <<a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a>></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p></div></div></div><p class=MsoNormal>I have 3 sets of HD8 carburetors all with different dashpot dampers. AUC8112, AUC8114 and AUC8115. What is the correct damper for a BJ8?</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>