Quote:
Originally Posted by Pops
if the chassis is alu and the screw steel then heat is your best friend. the alu will expand far more than the steel screw thus making the screw slack! Only problem is discolouring alu chassis. you should be ok if you balance another screw on the tight screw head to head then heat it up til red hot then allow heat to transfer...worked a peach for me
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Not a bad idea that

The chassis is alloy & so is the gearbox that is screwed to it, the screw will be steel i would think as it is a standard kyosho rb5 kit screw