<div dir="ltr">The semantic difference I've always followed is that a closed cooling system has a pressurized expansion bottle and an open system has an atmospheric overflow bottle.  The TR2-3B cooling system is, of course, an open system.  I wouldn't attempt trying to convert a sidescreen TR into a pressurized bottle system.</div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jan 4, 2018 at 10:25 AM, Rye Livingston <span dir="ltr"><<a href="mailto:ryel@mac.com" target="_blank">ryel@mac.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>I'm running a stock TR3 radiator cap and it does draw back water from my overflow bottle.</div><div><br></div><div><br></div><div class="m_8409044904665080890x-apple-signature">Rye<div><div class="h5"><br><br>On Jan 04, 2018, at 08:09 AM, Geo Hahn <<a href="mailto:ahwahneetr@gmail.com" target="_blank">ahwahneetr@gmail.com</a>> wrote:<br><br></div></div></div><div><blockquote type="cite"><div class="m_8409044904665080890msg-quote"><div><div class="h5"><div dir="ltr"><div>That looks like it may be a sealed unit.  In any case I will be curious if you can get the TR3 radiator (cap) to allow coolant to be drawn back into the system.</div><div><br></div><div>Geo</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jan 3, 2018 at 5:36 PM, David Templeton <span dir="ltr"><<a href="mailto:davidt@opentext.com" target="_blank">davidt@opentext.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US"><div class="m_8409044904665080890m_-689121113684699848WordSection1"><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt">Thank you everyone for the suggestions.  Going to give this one a try.  Even in Canadian dollars not a bad price, yeah the conversion rate sucks </span><span style="color:#1f497d;font-family:Wingdings;font-size:11pt">J</span><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt"><u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt"><a href="https://www.amazon.ca/gp/product/B07799KDL4/ref=od_aui_detailpages00?ie=UTF8&psc=1" target="_blank">https://www.amazon.ca/gp/produ<wbr>ct/B07799KDL4/ref=od_aui_detai<wbr>lpages00?ie=UTF8&psc=1</a><u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt">And this should fit where everyone suggested as well beside the rad<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt">David<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d;font-family:'Calibri',sans-serif;font-size:11pt"><u></u> <u></u></span></p><div><div style="border-width:1pt medium medium;border-style:solid none none;border-color:#e1e1e1 currentColor currentColor;padding:3pt 0in 0in"><p class="MsoNormal"><b><span style="color:windowtext;font-family:'Calibri',sans-serif;font-size:11pt">From:</span></b><span style="color:windowtext;font-family:'Calibri',sans-serif;font-size:11pt"> Triumphs [mailto:<a href="mailto:triumphs-bounces@autox.team.net" target="_blank">triumphs-bounces@autox<wbr>.team.net</a>] <b>On Behalf Of </b>TeriAnn J. Wakeman<br> <b>Sent:</b> Wednesday, January 3, 2018 11:16 AM<br> <b>To:</b> <a href="mailto:triumphs@autox.team.net" target="_blank">triumphs@autox.team.net</a><br> <b>Subject:</b> [EXTERNAL] - Re: [TR] Radiator overflow bottle<u></u><u></u></span></p></div></div><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal">My bottle and holder are from a GT6. The holder mounts on a horizontal surface so is mounted in the back right rear of the apron next to the radiator, behind the cardboard ducting.<br> <br> TeriAnn<br> <br> On 1/3/18 7:11 AM, Don Hiscock wrote:<u></u><u></u></p></div><blockquote style="margin-top:5pt;margin-bottom:5pt"><div><p class="MsoNormal">My TR3B had an overflow bottle when I got it in 1981, and I kept it after restoration.  Same basic location as Randall's. <u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Here's "before", looking from the air filters toward the front.  Note the open space alongside the inner wing and the radiator.<u></u><u></u></p></div><div><p class="MsoNormal"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__photos.smugmug.com_photos_i-2DsgKkWNB_0_32b27947_X3_i-2DsgKkWNB-2DX3.jpg&d=DwMDaQ&c=ZgVRmm3mf2P1-XDAyDsu4A&r=346MKQty4J9yevdUa9Fj_cT53y_74TwSRM-I7J2SFzs&m=Z0k2YwZFj0qNz-vgiBV8n2w76uCgirQDledkGTqcEWU&s=DnRM3oRWVrWyJyUItUksvePv5gwbUFmmC1OkGK-ap30&e=" target="_blank">https://photos.smugmug.com/pho<wbr>tos/i-sgKkWNB/0/32b27947/X3/i-<wbr>sgKkWNB-X3.jpg</a><u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">And "after".  Some of my original bits, and some new ones from TRF.<u></u><u></u></p></div><div><p class="MsoNormal"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__photos.smugmug.com_photos_i-2Dfszqz5f_0_43c20229_X3_i-2Dfszqz5f-2DX3.jpg&d=DwMDaQ&c=ZgVRmm3mf2P1-XDAyDsu4A&r=346MKQty4J9yevdUa9Fj_cT53y_74TwSRM-I7J2SFzs&m=Z0k2YwZFj0qNz-vgiBV8n2w76uCgirQDledkGTqcEWU&s=JzAfgRBcB-Y6Fzpmmc3SXSnenVKdrJ9EjzBVPbbzw58&e=" target="_blank">https://photos.smugmug.com/pho<wbr>tos/i-fszqz5f/0/43c20229/X3/i-<wbr>fszqz5f-X3.jpg</a><u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div></div><div><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal">On Wed, Jan 3, 2018 at 3:29 AM, Randall <<a href="mailto:TR3driver@ca.rr.com" target="_blank">TR3driver@ca.rr.com</a>> wrote:<u></u><u></u></p><blockquote style="border-width:medium medium medium 1pt;border-style:none none none solid;border-color:currentColor currentColor currentColor #cccccc;padding:0in 0in 0in 6pt;margin-right:0in;margin-left:4.8pt"><p class="MsoNormal">> I am looking for suggestions on a radiator overflow bottle configuration<br> > for the '3a.  I am not wanting to spend stupid money but open to<br> > suggestions from those who have added on to their '3.<br> <br> Here's what I did.  The bottle and holder are used originals from a Stag<br> (same as TR6).  TRF has them new, $28 for the bottle, cap & holder.  The<br> holder is held to the inner wing with 1/4" bolts.<br> <br> <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__imgur.com_P76PBYu&d=DwMDaQ&c=ZgVRmm3mf2P1-XDAyDsu4A&r=346MKQty4J9yevdUa9Fj_cT53y_74TwSRM-I7J2SFzs&m=Z0k2YwZFj0qNz-vgiBV8n2w76uCgirQDledkGTqcEWU&s=SjAKx0wNlpaGUzpCdbUGzblQ4G_fiF3qA-4ZDuqZBgo&e=" target="_blank">https://imgur.com/P76PBYu</a><br> <br> Not the easiest place to get to; but there is really no need to access the<br> bottle.  I can do the initial fill through the radiator neck (by slowly<br> filling it to the very top and waiting for coolant to run down the hose).<br> And any excess (like when a leaking head gasket blows coolant out) will<br> eventually run out the top.<br> <br> I can get it out with the apron on, by removing the horn, but I've not yet<br> found a reason to do so.<br> <br> I also had to get the radiator fill neck replaced with a modern one, so I<br> could use a recovery cap.  Never could get a stock type cap to hold vacuum,<br> so it would suck coolant back into the engine.  I tried several caps, tried<br> filling the space around the center rivet with RTV, and various rubber<br> gaskets; but nothing worked for me.  The modern fill neck was under $20<br> installed (as part of other radiator work).<br> <br> And a Stant "Lev-R-Vent" cap was only $8 or so.  I like being able to vent<br> the system without having to loosen the cap and take a chance on it coming<br> off all the way.  Wasn't a TR, but I once got a shower in scalding coolant<br> on a cold winter day, when I didn't realize just how hot the engine was.<br> Fortunately I was wearing glasses, so it didn't get in my eyes.  (TR<br> content, we were trying to jump start a previous TR3A "barn find" with my 65<br> Olds.  It would NOT start, so we got the bright idea of running hot coolant<br> through the TR from the Olds.  Still wouldn't start!)<br> <br> -- Randall<br> <br> <br> ** <a href="mailto:triumphs@autox.team.net" target="_blank">triumphs@autox.team.net</a> **<br> <br> Donate: <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.team.net_donate.html&d=DwMDaQ&c=ZgVRmm3mf2P1-XDAyDsu4A&r=346MKQty4J9yevdUa9Fj_cT53y_74TwSRM-I7J2SFzs&m=Z0k2YwZFj0qNz-vgiBV8n2w76uCgirQDledkGTqcEWU&s=cWR505Sa8LR9XXhRFfes64SbO_IUmEf7NVmZh0NeeRc&e=" target="_blank"> http://www.team.net/donate.htm<wbr>l</a><br> Archive: <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.team.net_archive&d=DwMDaQ&c=ZgVRmm3mf2P1-XDAyDsu4A&r=346MKQty4J9yevdUa9Fj_cT53y_74TwSRM-I7J2SFzs&m=Z0k2YwZFj0qNz-vgiBV8n2w76uCgirQDledkGTqcEWU&s=sG9Wy_Cu0Y3gL6hAIRZVTuBfbwPChWIjJyH3U8LjsCg&e=" target="_blank"> http://www.team.net/archive</a><br> Forums: <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.team.net_forums&d=DwMDaQ&c=ZgVRmm3mf2P1-XDAyDsu4A&r=346MKQty4J9yevdUa9Fj_cT53y_74TwSRM-I7J2SFzs&m=Z0k2YwZFj0qNz-vgiBV8n2w76uCgirQDledkGTqcEWU&s=e-Cz09ZGZCc22ABaw4IhB-V-QZSNiF-_Pq1emSRk-CU&e=" target="_blank"> http://www.team.ne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