Problem with FT- Kecig K100 center pin

[OldManVapz]

Like post says i have a k100 from FT, it stopped vaping otherday.
I used MM to test res. and it had no fault.
I then inserted battery tested Voltage, it read 3.97.
Threaded atty on tried both a igo-l and kayfun lite < clones>
And neither fired.
So was thinking it might have short in pin?
Pull cap off and pulled pin out, check insulating rubbers, no cracks, cleaned and sanded contact while i was at it. Put it all back together retested with MM, no short, good voltage, but when i try a atty on it, NOTHING..
Battery was tested also on its own, only thing i can think of now is, maybe 510 side of the pin is too recessed or go pushed down not making contact on atty??

Anyone have any ideas ??

 

[Stosh]

I'm not sure about the FT version but my K100 has a floting 510 center pin. If I put the battery in first (button top) and snug it down, there will be a visibly larger gap when I put my igo-w on it (which works OK) If I loosen the battery tube, and snug up the topper first, there is less gap, with the igo-w and battery as tightened down as before.

From what you are describing it would seem the center pin on your K-100, or possibly your toppers are too depressed to make proper contact.