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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hi all<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">It could simply be that notation “centre change gearbox” only differentiates between a floor change gearbox and f ex a column change
 or an automatic, not between a floor mounted change on top of the gearbox or one with the lever on the side. This coding system was used on all or nearly all BMC vehicles.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Seasons greetings to all!<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Sven<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Från:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Healeys <healeys-bounces@autox.team.net>
<b>För </b>Bruce Steele<br>
<b>Skickat:</b> den 25 december 2018 07:51<br>
<b>Till:</b> 'J. Scott Morris' <jstmorris@yahoo.com>; 'mitch' <dayton21@comcast.net>; healeys@autox.team.net<br>
<b>Ämne:</b> Re: [Healeys] engine identification<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif">I’m perplexed by the references to the “U” in the engine number in the documents which Scott attached.  The first attachment states that 3000 Mk I commenced with engine number
 29D-U-H101 and ended with 29D-U-H26212.  The second document states that “U” indicated a center shift gear box.  We know that all Mark I Healeys were side shift; the center shift was not introduced until near the end of the Mark II BN7/BT7 run in November,
 1961 at engine number 29E/2246, chassis number BT7/15881 and BN7/16039, per Clausager’s book.  Hence, the 2 documents conflict and my confusion over the statement that the “U” refers to a center shift box. 
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif">Clausager states: “However, the engine prefix was later changed, possibly coinciding with the introduction of the six-port engine in 1957.  These engines had the prefix 26D,
 followed by U on non-overdrive cars, and R (or RU) on overdrive cars, finishing with the letter H for High compression” (Original Austin Healey, Clausager, 1990, pg. 87).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif">Case in point, my BN7, produced 26-28 September, 1960 is chassis number 12656 and engine number 29D-U-H/22855 (my car was originally a non-OD car), verified by the BMIHT certificate. 
 The gearbox is a correct side shift unit.  This is in agreement with Clausager’s description.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif">So, the assertion that U denotes center shift is quite confusing.  Anyone else able to weigh in?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif;color:#1F497D">Bruce Steele<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif;color:#1F497D">Brea, CA<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif;color:#1F497D">1960 BN7<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Trebuchet MS",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Healeys [<a href="mailto:healeys-bounces@autox.team.net">mailto:healeys-bounces@autox.team.net</a>]
<b>On Behalf Of </b>J. Scott Morris<br>
<b>Sent:</b> Monday, December 24, 2018 8:18 AM<br>
<b>To:</b> mitch <<a href="mailto:dayton21@comcast.net">dayton21@comcast.net</a>>;
<a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a><br>
<b>Subject:</b> Re: [Healeys] engine identification<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Garamond",serif;color:black">Hello Mitch and Seasons Greetings. 
<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Garamond",serif;color:black">The attached files may help a little but the casting numbers are not related to sequential engine production. <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Garamond",serif;color:black">--Scott Morris; Simcoe, Ontario, Canada           - Keep Smiling, Murphy Lives<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span lang="EN-US" style="font-family:"Garamond",serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">On Monday, December 24, 2018 7:39 AM, mitch <<a href="mailto:dayton21@comcast.net">dayton21@comcast.net</a>> wrote:</span><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black">Hello<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black">How do you ID an engine block/or head……that does not have an ID tag?<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black">Do the engine block casting numbers mean anything?<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black">Mitchell<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:black"> <o:p></o:p></span></p>
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