<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Joe<o:p></o:p></p><p class=MsoNormal> I believe I bought my radiator cap from Sunbeam Specialties.<o:p></o:p></p><p class=MsoNormal>Cap indicates 9 lbs. and G630.<o:p></o:p></p><p class=MsoNormal>Rubber seal to rubber seal is .805”.<o:p></o:p></p><p class=MsoNormal>I installed a catch bottle for the header tank overflow. Catches any overflow which gets sucked back in when the engine cools.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The Parts lists indicates 9 lbs. later cars and 13 lbs. early cars.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Tiger, An Exceptional Motorcar indicates B382001521 as last unit with early header tank and 9 lb. cap – B382001522 1<sup>st</sup> Tiger with updated header tank and 13 lb. cap.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Well, no really good help there.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m thinking 9 lbs. for early cars and 13 lbs. for later cars is correct<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ron Fraser<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> Tigers <tigers-bounces@autox.team.net> <b>On Behalf Of </b>Joe Brown<br><b>Sent:</b> Tuesday, July 27, 2021 6:07 PM<br><b>To:</b> Tigers Den <Tigers@autox.team.net><br><b>Subject:</b> [Tigers] Radiator Cap<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I'm hoping one of you guys can tell me what radiator cap I should be using. I've tried a cap that was listed as being for a Tiger on Autozone's website but I think the pressure spring part under the cap is too short. I almost immediately start getting water out of the overflow tube as the engine warms up. I measured the depth of the expansion tank opening from the top edge to the flange where the spring part of the cap would sit and got .777". I measured the cap from the big rubber seal just under the cap to the small rubber seal at the end of the spring and got something like .75". So it looks like I need a cap with a longer spring stem. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>A brand name and part number would be great. And also, what should the pressure rating be? What I have is 13 lbs.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks,<o:p></o:p></p></div><div><p class=MsoNormal>Joe Brown<o:p></o:p></p></div></div></div></body></html>