<html><body>My understanding is that BMC went to the nylon bush, as it was "quieter" in use. Still makes noise if you rest you hand on the shifter. Hank<br><br><div class="reply-new-signature"></div><p>-----------------------------------------</p>From: "Harold Manifold via Healeys" <healeys@autox.team.net><br>To: "simon.lachlan@alexarevel.plus.com", "richard mayor"<br>Cc: "Healeys"<br>Sent: Friday December 3 2021 10:06:51AM<br>Subject: Re: [Healeys] Center change gear sticks<br><br>
<div class="WordSection1">
<p class="MsoNormal">Simon,</p>
<p class="MsoNormal"> </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"> </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"> </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"> </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"> </p>
<p class="MsoNormal">What are the dimensions of the replacement
nylon bush?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Regards,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Harold</p>
<p class="MsoNormal"> </p>
<div style="border:none;border-top:solid #E1E1E1 1pt;padding:3pt 0in 0in 0in;">
<p class="MsoNormal" style="border:none;padding:0in;"><b>From:</b>
<a>Simon Lachlan via
Healeys</a><br><b>Sent:</b> Friday, December 3, 2021 9:03 AM<br><b>To:</b> <a>richard
mayor</a><br><b>Cc:</b> <a>Healeys</a><br><b>Subject:</b> Re: [Healeys] Center change gear sticks</p>
</div>
<p class="MsoNormal"> </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.</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.</span></p>
<p class="MsoNormal"><span lang="en-gb">Yours confused of
Bradninch. (aka Simon).</span></p>
<p class="MsoNormal"><span lang="en-gb"> </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</p>
<p class="MsoNormal"><span lang="en-gb"> </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?</span></p>
</div>
<div>
<p class="MsoNormal"><span lang="en-gb"> </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? </span></p>
</div>
<div>
<p class="MsoNormal"><span lang="en-gb"> </span></p>
</div>
</div>
<p class="MsoNormal"><span lang="en-gb">Thanks,
Richard</span></p>
<p class="MsoNormal"> </p>
</div>
</healeys@autox.team.net></body></html>