You know, depending on which heatsink it is, the Novak 1/8th scale conversion heatsink has 2 screws that hold the heatsink tight to the motor. If the heatsink has a flat bottom with 4 screw holes on the corners, check to see if there are 2 holes just below the top of the fins on the flat side of the heatsink, if it does have these holes, take a 2mm allen and see if there are screws in those holes. That may just let the heatsink slide off without troubles.
I may also just need a screw driver slipped between the fins to release it.
I would like to see a pic of that heatsink/motor combo before setting any heat to it, you may not have to!!
Just 2cents worth
"Experience is the best teacher, and is best learned from others experiences"
"Just because I HAVE to grow old, does NOT mean I have to grow up!"
MaxAmps...Novak Brushless...Yokomo...Robitronics...Kawada...OFNA/HoBao...ABC...Hot Bodies...Schumacher...