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--></style></head><body lang="EN-CA" link="#0563C1" vlink="#954F72" style="word-wrap:break-word"><div class="WordSection1"><p class="MsoNormal"><span style="mso-fareast-language:EN-US"> </span></p><p class="MsoNormal"><span style="mso-fareast-language:EN-US"> </span></p><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><span lang="EN-US">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></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">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></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">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: <a href="https://mossmotors.com/catalogsearch/result/?cat=8823&q=overflow">https://mossmotors.com/catalogsearch/result/?cat=8823&q=overflow</a></span></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">Thanks,</span></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">Dave MacKay</span></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><b><span lang="EN-US">>From:</span></b><span lang="EN-US"> Randy and Valerie DeRuiter <<a href="mailto:deruiterville@hotmail.com">deruiterville@hotmail.com</a>> <br><b>>Subject:</b> Re: [TR] Add coolant overflow catch to TR3A</span></p></div></div><p class="MsoNormal">> </p><div><p class="MsoNormal"><span style="font-size:12.0pt">><span style="color:black">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>><span style="color:black">remained pressurized with the system and worked well. That tank can be added pretty much anywhere you have room.</span></span></p></div><div><p class="MsoNormal"><span style="font-size:12.0pt">><span style="color:black"> </span></span></p></div><div><p class="MsoNormal"><span style="font-size:12.0pt">><span style="color:black">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>><span style="color:black">see coolant in the radiator neck. </span></span></p></div><div><p class="MsoNormal"><span style="font-size:12.0pt">><span style="color:black"> </span></span></p></div><div><p class="MsoNormal"><span style="font-size:12.0pt">><span style="color:black">Randy</span></span></p></div><div id="divRplyFwdMsg"><div><p class="MsoNormal">> </p></div></div><div><div><p class="xmsonormal">>> 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.</p><p class="xmsonormal">>> </p><p class="xmsonormal">>> What Have others done? Pictures would be very helpful.</p><p class="xmsonormal">>> </p><p class="xmsonormal">>> Thanks in advance,</p><p class="xmsonormal"> </p><p class="xmsonormal"> </p></div></div></div></body></html>