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Buy a Robinsons racing 16T and drill your grub screw out. Pay particular attention to your drill depth though...don't want to hit the motor shaft.The grub screw on the pinion gear loosened during a run. It is a new truck, so it has never been removed.
The screw got mangled by spinning against the spur gear...any ideas on how to extract this?
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You make a great point about cost. For me it was cheaper to drill it out and replace it with the 16t from Robinsons Racing.I can finally be of help here!
This exact same thing happened to me: new V4K out of the box, 4 packs into it and this happened after a grass run.
Note on costs: In my country it would have been marginally cheaper to go to my LHS and get them to do some surgical sawing to remove and replace the pinion. Here the cost of that and replacing the pinion and grub is less than the cost of the screw-extractor set, butane torch and new grubs. But, hey, now I've got a set of screw extractors that I'll make good use of in future??
- Use a butane torch to heat that sucker up for 15+ seconds as there is a good amount of red loctite on there from factory. If you don't have that, a soldering iron on to the grub for a minute+ may work. Try not to heat the shaft and motor too much.
- Then use a screw extractor tool attachment on your power drill.
You make a great point about cost. For me it was cheaper to drill it out and replace it with the 16t from Robinsons Racing.
It all depends on what your current budget is for the repair.
Edit...in all honesty the best advice is to get the screw extractor kit...the grub screw looks like it backed out a lot.
If there's red loctite on it from factory it shouldn't have come loose. Check it out well. Screw extracters wook well and definitely use a torch first but be careful not to damage anything from the heat... No more than 10 seconds or so for something that size. I actually have 3 extractor sets.. One from harbor freight... One from snap on tools and another from a company called eazy out I believe.Yah, looking back I would have been better off in the pocket to replace the pinion: Pinion is NZD20 vs NZD50+ for the extractor kit and more for the butane torch. Unfortunately, the expensive option was faster as a stock pinion would need to be ordered.
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