<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">I installed this overflow radiator bottle in my 60 TR3<div class=""><a href="https://www.summitracing.com/parts/mrg-9135" class="">https://www.summitracing.com/parts/mrg-9135</a></div><div class=""><br class=""></div><div class="">The clear tube up the side showing the fluid level is what I like. </div><div class=""><br class=""></div><div class="">There are a bunch of different shapes and sizes available.</div><div class=""><a href="https://www.summitracing.com/search?SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=universal overflow" class="">https://www.summitracing.com/search?SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=universal%20overflow</a></div><div class=""><br class=""></div><div class="">Along with the coil which I’ve moved off the engine, away from the heat and vibration, I’ve got the overflow bottle and coil mounted side by side on the drivers side inner fender wall.</div><div class=""><br class=""></div><div class="">When I look in the radiator when cold, the coolant is about 1/3 deep in the neck, and it’s about halfway up the clear tube on the side of the overflow bottle.</div><div class=""><br class=""></div><div class="">Rye</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Feb 14, 2022, at 7:56 AM, Dave MacKay <<a href="mailto:dave@mdmackay.ca" class="">dave@mdmackay.ca</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta charset="UTF-8" class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><p class="MsoNormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span class=""> </span></p><p class="MsoNormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span class=""> </span></p><div class=""><div style="border-style: solid none none; border-top-width: 1pt; border-top-color: rgb(225, 225, 225); padding: 3pt 0cm 0cm;" class=""><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">The TR3A owners manual (Practical hints …) says to “keep the neck of the filler at least half full of water”. I’ve been doing that and have always had coolant spilling out from the car.<span class="Apple-converted-space"> </span></span></div><p class="MsoNormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="EN-US" class=""> </span></p><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">If Randy is correct in saying that one should barely see coolant in the radiator neck when the TR3A is cold, I’ve been overfilling the radiator. Can I solve the overflow problem simply by keeping the rad less full? If so, how high should I fill the rad?<span class="Apple-converted-space"> </span></span></div><p class="MsoNormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="EN-US" class=""> </span></p><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">Or would I be better off fitting a TR4A overflow bottle? If so, where would be a good location? Here’s what I’d been thinking of:<span class="Apple-converted-space"> </span><a href="https://mossmotors.com/catalogsearch/result/?cat=8823&q=overflow" style="color: rgb(5, 99, 193); text-decoration: underline;" class="">https://mossmotors.com/catalogsearch/result/?cat=8823&q=overflow</a></span></div><p class="MsoNormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="EN-US" class=""> </span></p><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">Thanks,</span></div><p class="MsoNormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="EN-US" class=""> </span></p><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">Dave MacKay</span></div><p class="MsoNormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="EN-US" class=""> </span></p><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span lang="EN-US" class="">>From:</span></b><span lang="EN-US" class=""><span class="Apple-converted-space"> </span>Randy and Valerie DeRuiter <<a href="mailto:deruiterville@hotmail.com" style="color: rgb(5, 99, 193); text-decoration: underline;" class="">deruiterville@hotmail.com</a>><span class="Apple-converted-space"> </span><br class=""><b class="">>Subject:</b><span class="Apple-converted-space"> </span>Re: [TR] Add coolant overflow catch to TR3A</span></div></div></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">> </div><div class=""><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">><span style="" class="">I'm not sure you have room as I haven't done it on a TR3A, but a coolant bottle and bracket from a TR4A-6 might fit which would put it below the horns. On my TR4, I added an expansion tank from an MGB like the picture attached which<span class="Apple-converted-space"> </span></span>><span style="" class="">remained pressurized with the system and worked well. That tank can be added pretty much anywhere you have room.</span></span></div></div><div class=""><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">><span style="" class=""> </span></span></div></div><div class=""><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">><span style="" class="">That said, are you sure you need an overflow bottle? The 3A radiator neck has a lot of expansion space in it - and normally that is what keeps all the coolant in place - are you possibly overfilling your radiator? When cold you should barely<span class="Apple-converted-space"> </span></span>><span style="" class="">see coolant in the radiator neck. </span></span></div></div><div class=""><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">><span style="" class=""> </span></span></div></div><div class=""><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">><span style="" class="">Randy</span></span></div></div><div id="divRplyFwdMsg" class=""><div class=""><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">> </div></div></div><div class=""><div class=""><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">>> I’d like to add a coolant overflow bottle to my TR3A (s/n 68639L). I’m trying to determine a good spot for the coolant overflow bottle. The spot I like best is already taken up by the horns.</div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">>> </div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">>> What Have others done? Pictures would be very helpful.</div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">>> </div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">>> Thanks in advance,</div><p class="xmsonormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> </p><p class="xmsonormal" style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> </p></div></div></div><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">** <a href="mailto:triumphs@autox.team.net" class="">triumphs@autox.team.net</a> **</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Donate: <a href="http://www.team.net/donate.html" class="">http://www.team.net/donate.html</a></span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Archive: <a href="http://www.team.net/pipermail/triumphs" class="">http://www.team.net/pipermail/triumphs</a> <a href="http://www.team.net/archive" class="">http://www.team.net/archive</a></span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/triumphs/ryel@mac.com" class="">http://autox.team.net/mailman/options/triumphs/ryel@mac.com</a></span></div></blockquote></div><br class=""></div></body></html>