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Old 04-15-2018, 06:19 PM   #7
Senior Member
Join Date: Aug 2012
Location: visalia calif
Posts: 135
Default Re: brassworks radiator-6 fin vs 10 fin per inch

Be sure your cap is the correct one. Make sure the cap has the correct gasket. Check your cap in a known good radiator neck. I assume you have did all of that but you never know for sure. If your cap has been used in a worn or bent neck and has two thick of gasket it may have trouble working correctly in a new radiator neck.
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