John,
I got an e-mail back from Ronnie at Tractor Smart, he also talked to Kubota and found no problem to report from the manufacture and from the NH dealer. But, without me asking, he has offered to send me another block heater so I can look at both threads and see what works. How about that for service. /forums/images/graemlins/smile.gif I just hope I do not have the same problem you did, /forums/images/graemlins/frown.gifnow all I have to do now is to buy that 17 mm hex wrench. /forums/images/graemlins/grin.gifThanks for the info.