Yep the esc was fine and the new motor is so much better.. besides fixing the squeal it also stutters less at the start and looks more serviceable.
Thanks all for you help
I guess its borked... where can I get a motor like that..all HK have is Sensored ..none to replace.. My local RC shop has these http://radientrc.com/Reaktor/ or should I just go for the same combo again hoping this was a one off?
It seems ok ..power is fine just sometimes the motor will squeal and not engage then I release the throttle and try again then it will go.
This is a sensorless motor ... have I broke it?
Faster acceleration slower top speed ofc... Cooler motor and longer runtime as I'm heavy with the throttle.
I took some footage over the park nothing fancy just running around on the grass http://youtu.be/HZtXk6y71hg
One of these will do http://www.ebay.co.uk/itm/400717570290?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT..I was advised by a user here to get one ...does the job