TwinTurbo.NET: Nissan 300ZX forum - Koyo Radiator Leak
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Subject Koyo Radiator Leak
     
Posted by Bigwill837 on June 16, 2012 at 10:32 AM
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Message I have a Koyo radiator I installed several years ago. All of a sudden it won't hold pressure at the radiator cap. I replaced the cap (from Stant to some Japanese brand). Now every time the car gets warm (operating temp.) radiator fluid starts leaking out of the cap. Is this a common problem for Koyo radiators? Do the necks on the Koyo's have this issue or is it something else?

     
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