Malachite Posted August 24, 2021 Share Posted August 24, 2021 My boy is running his Phantom XT as stock but with 2S LiPo, which I have seen many people doing on YouTube. We seem to keep stripping the pinion and gear. He only got it in June and we have replaced them both 3 times. Although i think the latest was because the grub screw came out of the pinion (assumed lost) and when I did a new run with a replacement screw, the gear shredded in seconds so I am guessing the grub screw was the cause. Thinking about a future, minor brushless upgrade but worried about the pinion and gear not lasting 5 minutes with that sort of power. Quote Link to comment Share on other sites More sharing options...
froggy8 Posted August 24, 2021 Share Posted August 24, 2021 (edited) 1 hour ago, Malachite said: My boy is running his Phantom XT as stock but with 2S LiPo, which I have seen many people doing on YouTube. We seem to keep stripping the pinion and gear. He only got it in June and we have replaced them both 3 times. Although i think the latest was because the grub screw came out of the pinion (assumed lost) and when I did a new run with a replacement screw, the gear shredded in seconds so I am guessing the grub screw was the cause. Thinking about a future, minor brushless upgrade but worried about the pinion and gear not lasting 5 minutes with that sort of power. when you tighten the grub screw, do you use loc-tite afterwards? i always use loc-tie after and wait few days to fully heal. i only said few days because i normally wait few days to take car out again but few hours would be fine. Edited August 24, 2021 by froggy8 1 Quote Link to comment Share on other sites More sharing options...
Malachite Posted August 24, 2021 Author Share Posted August 24, 2021 13 minutes ago, froggy8 said: when you tighten the grub screw, do you use loc-tite afterwards? i always use loc-tie after and wait few days to fully heal. i only said few days because i normally wait few days to take car out again but few hours would be fine. I think the grub screw issue was only the cause this time. The first two strippings of cogs, the grub screw was tight. Quote Link to comment Share on other sites More sharing options...
froggy8 Posted August 24, 2021 Share Posted August 24, 2021 Just now, Malachite said: I think the grub screw issue was only the cause this time. The first two strippings of cogs, the grub screw was tight. ok i guess that only leaves one option and that is, have you meshed it properly? if in doubt, do the paper method. you dont want it too tight or too slack. after you have done the mesh, there should only be around 1mm movement. 1 Quote Link to comment Share on other sites More sharing options...
Nitroholic Posted August 26, 2021 Share Posted August 26, 2021 When you say you replaced spur and pinion ... were both damaged? If so...that does sound like a meshing issue. Also...the stock pinions are not good quality. You may be able to get better steel pinions Quote Link to comment Share on other sites More sharing options...
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