curlass24 Posted June 27, 2017 Report Share Posted June 27, 2017 Hi all, We have a header tank feeding 3 radiators and it has a very minor leak but I'm struggling to locate it. Any tips on how to do so? / seal it? Thanks! Link to comment Share on other sites More sharing options...
mross Posted June 27, 2017 Report Share Posted June 27, 2017 Use a paper towel to thoroughly dry the exterior and than go over it with a fresh paper towel. The slightest weep will show on the towel. Is it a plastic header tank? Link to comment Share on other sites More sharing options...
blackrose Posted June 27, 2017 Report Share Posted June 27, 2017 I used JB Weld steel epoxy paste (original version) to seal up a leaking skin tank. It's been fine since. Once you find the leak, drain the tank, make sure the hole is dry, key it with a fine grade of paper, clean off any dust and seal it up. You can get JB Weld cheaply from Amazon Link to comment Share on other sites More sharing options...
ditchcrawler Posted June 27, 2017 Report Share Posted June 27, 2017 Is it a plastic or metal header tank? Link to comment Share on other sites More sharing options...
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