Originally Posted by
RCNitro13
Hi guys,
Just got a new GXII to replace my stock RTR motor, hopefully i can break it in soon!!
I have 2 questions:
- the collet that came with the kit seems to be tight and doesnt fit easily onto the crank. I pushed it on slightly (with some light force) using the flywheel but Im concerned it may scratch the crank if I push it all the way or if it needs adjusting for whatever reason its going to be impossible to remove. Is this normal?
- How many shims should I use for breaking in (will be using 25%)? Do I need to adjust the shims once the motor is broken in?
Thanks.
Hi,
The collets are a tight fit. If you look closely you will see a slit down the side. Use a small tipped flat blade screwdriver to prise open the slit in the collet when sliding it over the crank. You won't hurt the crank, it is made of hard stuff.
Don't worry about the shims. Just run it in and then race it as it came in the box.
You can add an extra .2mm shim for run-in, but they don't come in the box, so unless you have one lying around just keep it simple. It will be very tight for the first 8 or so tanks. Just take it slow and easy. Check out the run-in and tuning guide on our website for information on how to make the run-in easy on you and your motor, then how to tune it for racing once it's run in - about 12 - 15 tanks normally.
http://go-racing.vpweb.co.nz/Tech-Tips.html
Any problems just email me or post on here.
