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Since last year I have had a JWT TT kit and all has been good. But a few weeks after I got the TT kit I found I a leak of coolant. It was only a few drops so I figure it was from someone’s car that park before me. I later found it was me. After looking here and there I figured out just recently it was the radiator, and more importantly it is the radiator drain plug. If you have the little black plug, call Koyo and get it replaced. The should send you another. They have had multiple failures with this drain cap but I have never heard anything about it until calling them. Hope this helps anyone that may have this problem.
I also had a small leak from the plug, but all I had to do was tighten it about a 1/2 turn, and no leak anymore.
That’s how mine started out but it got worse. Just for safety call Koyo of Cali up and have them send you a new one. That way if something does happen or conditions do get worse all you have to do is swap it out and have no down time.
That’s how mine started out but it got worse. Just for safety call Koyo of Cali up and have them send you a new one. That way if something does happen or conditions do get worse all you have to do is swap it out and have no down time.