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either it's the way the video diplays on my screen or your spring looks like it's bowed like a banana. it should be replaced if this id the case. i replace d a 210% pdi that was like that because it forced the piston to wear into the piston guide on the mechbox and left blue shavings all throughout the mechbox. didn't cause jamming though. have your gears (especially spur) worn any spots in the mechbox? it looks to me that the bushing for the spur gear is on the spur gear and not firmly secured in the mechbox where it should be. this is a sign that the mechbox is toast (some of you may say "bullshit" but hear me out). the bushing should be secured on its outer race to the mechbox basically by pressure. it should not be loose or fall out. if it does the gears are impossible to shim at all, the gears will become free to "wobble" and cause grinding away of the mechbox, the gears or anything else. the only wear point on a bushing should be the inner race, but good lubrication will offset most or all of that. it doesn't appear to be any lube in there at all, which is the prime cause of bushing, gear and inevitable box failure. some guys will say there is no such thing as box failure inless it is physically broken (i've heard that one many,many times). but they are just plain wrong. bushings, just like bearings, need to have a firm and secure mount or they are useless. let me know if my imaging is mistaken because that's what it looks like to me
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