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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='mso-fareast-language:EN-US'>Interesting photos.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>I’ve never thought about this. All my cranks need a little straightening after some use in race engines.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>The machine shop says, that is normal. Many race engines warp cranks during usage.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>As long the bearings are okay nothing to do they say.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>My mains never developed a problem…..and I’m running larger main bearing clearances to compensate crank flexing….all seems fine.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>On the other hand, I’m running smaller rod bearing clearances.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>Cheers<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>Chris<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b>Von:</b> Fot <fot-bounces@autox.team.net> <b>Im Auftrag von </b>Phil Gott via Fot<br><b>Gesendet:</b> Sonntag, 24. November 2019 04:11<br><b>An:</b> Tony Drews <tony@tonydrews.com><br><b>Cc:</b> Friends Of Triumph <fot@autox.team.net><br><b>Betreff:</b> Re: [Fot] Center main support<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here are some photos:<o:p></o:p></p><div><p class=MsoNormal><img width=2016 height=1512 style='width:21.0in;height:15.75in' id="_x0000_i1025" src="cid:image001.jpg@01D5A2AC.01E7A2D0"><br><img width=2016 height=1512 style='width:21.0in;height:15.75in' id="_x0000_i1026" src="cid:image002.jpg@01D5A2AC.01E7A2D0"><o:p></o:p></p><div><p class=MsoNormal> <img width=1512 height=1512 style='width:15.75in;height:15.75in' id="_x0000_i1027" src="cid:image003.jpg@01D5A2AC.01E7A2D0"><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Sent from my iPhone<o:p></o:p></p></div><div><p class=MsoNormal><br><br><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-bottom:12.0pt'>On Nov 23, 2019, at 12:23 PM, Tony Drews <<a href="mailto:tony@tonydrews.com">tony@tonydrews.com</a>> wrote:<o:p></o:p></p></blockquote></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal> <o:p></o:p></p><p>I agree, that sounds like overkill. Mine only requires the top of the cap to be machined flat, no other block mods.<o:p></o:p></p><p>Regards, Tony<o:p></o:p></p><div><p class=MsoNormal>On 11/23/2019 5:42 AM, Phil Gott wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal>Thanks again, Tony: <o:p></o:p></p><div><p class=MsoNormal>The one we have, built by the late Bill Throop, in addition to reinforcing the cap itself, has the block machined internally to accept the sides of a strap, then the strap is cross bolted from the sides, through the block from outside. I’m wondering if this is a bit of overkill. Based on your recommendation, it seems to be.<o:p></o:p></p></div><div><p class=MsoNormal>Maybe I can send some pictures later today, as we are pulling the engine today for other work.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Phil<o:p></o:p></p><div><p class=MsoNormal>Sent from my iPhone<o:p></o:p></p></div><div><p class=MsoNormal><br><br><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-bottom:12.0pt'>On Nov 22, 2019, at 10:56 PM, Tony Drews <a href="mailto:tony@tonydrews.com"><tony@tonydrews.com></a> wrote:<o:p></o:p></p></blockquote></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal> <o:p></o:p></p><p>I run that setup, it was an uncle jack trick. Here's what he wrote about that (on my engine building tips page):<o:p></o:p></p><p><span style='font-size:13.5pt;font-family:"Tahoma",sans-serif;color:black;background:white'>"I also like to strap the center main to add rigidity to the bottom end. To do this, mill off the cast face of the main flush with the surfaces for the head bolts. Get a front strap for a Chevy 400 block. You must enlarge the holes in the strap and you must use longer bolts. Some builders feel that this is totally unnecessary, but since starting to do this, I have never had a main bearing deteriorate faster than a rod bearing, which is something that happens more frequently than you would expect."</span><o:p></o:p></p><div><p class=MsoNormal>Regards, Tony Drews<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>On 11/22/2019 3:58 PM, Phil Gott via Fot wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><pre>Has anyone seen the need to add extra support to the center main on the TR wet sleeve engine? We have an engine that has a steel bridge cross-bolted underneath and supporting the center main cap. Is this needed? Just took 3 factory cranks to the machine shop and all three were bent about .002 in (.002 run out at center main when supported on first and last mains.) Two of these were raced, the third was removed from a tired street engine. note: None of these cranks came out of the engine with extra support at the center.<o:p></o:p></pre><pre>Curious as to the need for the extra support.<o:p></o:p></pre><pre>Thanks,<o:p></o:p></pre><pre>Phil Gott<o:p></o:p></pre><pre>114 TR4A<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Sent from my iPhone<o:p></o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre><a href="mailto:fot@autox.team.net">fot@autox.team.net</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre><a href="http://www.fot-racing.com">http://www.fot-racing.com</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Donate: <a href="http://www.team.net/donate.html">http://www.team.net/donate.html</a><o:p></o:p></pre><pre>Archive: <a href="http://autox.team.net/archive">http://autox.team.net/archive</a> <a href="http://www.team.net/pipermail/fot">http://www.team.net/pipermail/fot</a><o:p></o:p></pre><pre>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/fot/tony@tonydrews.com">http://autox.team.net/mailman/options/fot/tony@tonydrews.com</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre><o:p> </o:p></pre><pre><o:p> </o:p></pre></blockquote></div></blockquote></div></blockquote></div></blockquote></div></div></body></html>