Hi Craig thanks for the reply,

I moved the thermocouple 180 degrease today ( other side of engine ) and temps where better high 500's idle and just over 700 on slam and settling down to 700 at 160,000. ( I know this does not rectify the situation )

My engine does not have the o ring on the shaft tunnel. I have not seen one on a jet joe engine but would love to see a picture just to see what it looks like, I have heard of them but not seen one. Does the o ring present a problem. is it better to have one or not ?

The starter motor is not the problem as I have tried starting with air but no difference,

Preload how much should I have ? I can push the turbine wheel towards the compressor wheel about .5mm with good spring back. What is the best method to adjust pre load and how much should I have ?

the white powder I believe is the butane start gas, I remove the gas completely after the ramp has started and fuel is flowing. yes there are flames durning start up not big ones but they are there.

I am stumped as to why this is happening.