Ok guys need your help, It's been 2years since I have completed a nitro ruild. I have my os .12 cz broken down. Now I am at the part where you remove the darn piston/sleeve. Ok how do you remove it without bad words or tossing you motor againsy the wall? I rember some said use the oven, but forgot how to pop it out with zip ties, any info will be greatly appreciated!!