<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" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Simon,</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have two Healey transmissions both in some degree of disassembly. I measured the brass bush on both:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Trans 1 – Side Shift from a BN4 - OD 0.685” x 0.49” H</p><p class=MsoNormal>Trans 2 – BJ7 Centre Shift with Roll Pins – OD 0.675” x 0.48” H</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The service parts list for both these transmissions lists AEC3520 as the BMC part number for the brass bush.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>As we all know these bushes fit into a machined socket that is part of the gear change mechanism. The bushes are in two haves and held together with a circlip. I will suggest that a one piece nylon bush may be superior to the original brass if it is the right size to both fit the ball at the end of the gear lever and slide freely in the socket. When I took apart both these transmissions there was a build up of debris, oil, corrosion, etc. in the socket that prevented the bush from moving freely. A nylon bush the right size that doesn’t require lubrication may give a better feel to the gear shift and not have the issues with debris build up in the socket.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>What are the dimensions of the replacement nylon bush?</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Harold<o:p></o:p></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">Simon Lachlan via Healeys</a><br><b>Sent: </b>Friday, December 3, 2021 9:03 AM<br><b>To: </b><a href="mailto:boyracer466@gmail.com">richard mayor</a><br><b>Cc: </b><a href="mailto:healeys@autox.team.net">Healeys</a><br><b>Subject: </b>Re: [Healeys] Center change gear sticks</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-GB>Well, who knows? I have a MkII which has had the roll pins (BT7, BN7 & BJ7) and the nylon bush (BJ8) for the last 25++ years. And which worked fine.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>When I asked AHSpares for a new bush, this one having been there for 25++ years, they sent me a nylon one.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>Yours confused of Bradninch. (aka Simon).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p><p class=MsoNormal><b>From:</b> Healeys <healeys-bounces@autox.team.net> <b>On Behalf Of </b>richard mayor via Healeys<br><b>Sent:</b> 03 December 2021 16:38<br><b>To:</b> healeys <healeys@autox.team.net><br><b>Subject:</b> [Healeys] Center change gear sticks<span lang=EN-GB><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p><div><div><p class=MsoNormal><span lang=EN-GB>I have a top cover for what I thought was for a BJ8. I have no stick and no bushings - just the bare cover. I has the roll pins in place. Does this mean it is for a BJ7 and not a BJ8?<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-GB>And if it came from a BJ7 can it still be used on a BJ8 transmission assuming one could find the proper stick and bushing? <o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-GB>Thanks, Richard<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>