XINLEHONG 9125, GPtoys S920 & HOSIM 9125 - Differential MAINTENANCE / Servo ACCESS PT 1
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- เผยแพร่เมื่อ 12 ม.ค. 2019
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*Part 1 of a 2 part showing you how to maintain your 9125 truck. This applies to XINLEHONG, GPtoys S920, HOSIM and other rebranded vehicles. Part one deals with front end Differential and Servo access.
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Thank you for teaching me. I have two brand new 9125s, 4 9145s, a 979b, a Q901, and my favorite X-04A! Now I know how to make them last! Appreciated
Your HOW-TO videos are great for the beginner , thanks so much. Keep providing LINKS to the products,, very helpful !!
Thanks for the comment!
For the differential, Instead of snugging that one screw up for the drive cups you’ll want to remove that and separate the cup and that gear and make sure that you liberally apply grease in between the gear and the housing and inside the bearing so that it doesn’t have to use any more force than necessary to spin that gear. Then when putting the screw back in you’ll not want to tighten it too much again so it doesn’t need more force than necessary to spin that. Do this for both sides of the differential and then pack the diff with grease. And make sure that it isn’t to hard to spin the limited slip so that you don’t sheet off the grooves on that gear that you took off. I’ve learned this from experience and this what has worked best for me.
Wow! Super excellent Vid!! Thanks so much for the nice job!!!
Great vid, thanks!
Great material, I had to take my 9125 apart today because it went into a deep puddle and was dripping with water. I also took the oportunity and greased the front and rear differential. I also found out that one of the screws keeping the rear differential together was loose, which probably is a factory defect. I hope it will not affect the car.
COOL, AAA instructions THANKS for your help.
Awesome video. Bought 2 of these to race my son super fast great rcs. But we just broke my sons truck, looks like the left wheel does not spin and there is a ton of play on the arm and cup. | am feeling more confident I can do this now thanks to your video. Ordering the parts and going to tackle asap.
Those diffs look decent for sure
Yeah the build is actually not too bad for the money. Thanks for the reply.
Great tutorial. What shocks did you put on there ... those are not stock? I love the teardown it is the only one I have seen on youtube so it is nice to see what I will be getting into. Just ordered this truck (well 2 trucks, 1 for my son and 1 for me) yesterday and trying to learn as much about maintenance before I get into it.
Perfect explanation how to do this. Not building bridges ))
Hi..
Really nice video !!
Great job !!
Question...
Can you control this 9125 with the transmitter from other xinlehong model ?
I know the 9115 or 9136 are similar and transmitter can bind with different model..
But this one the 9125 got a 60 amp esc, I would like to use it on my other xinlehong model.
But I'm not sure if it will connect to my other xinlehong transmitter.
Can you please help me,
Thank
Jc
Please can some one do a video on aluminum suspension upgrade parts. Upper and lower control arms, and steering hubs front and rear. Motor upgrades
Thanks for the video MooDog! Do you happen to have any pictures of the receiver PCB+chip? Trying to hack the control loop, was able to disassemble the transmitter/controller and get that but it's not obvious how to crack open the receiver part.
Can u do a video replacing the metal upgraded differentials and metal tooth driveshaft that runs from front to back?? Please
Bonjour super vos tutos , merci beaucoup pour tout ! (thank's for all tutos) // vraiment bien fait , Q: savez vous la différence entre ipx4 et ipx6 ? personne ne semble savoir , merci beaucoup
does packing it with grease reduce the power/speed of the truck as i assume it would add a little resistance to the movement of the gears. Also i am so far impressed with this truck for its value and was wondering how many hours use you have in this one and what parts have needed replacement.
Hey bud! Thanks for these videos I've become a lot more knowledgeable after watching your videos. Wanted to run something by you on the hosim 9125 truck. Is it just me and I have been putting in my differentials upside down this whole time or does the manual have the differentials in upside down? I've ordered some new diffs but in the meantime I've been trying to figure out what keeps causing my differentials to come loose after 5 min of play? I have an idea it's most likely my grub screws threads are worn out bc they seem to keep coming loose. It's aggravating when you finish putting truck back together only to take it apart 5 min later. I should be an expert by now disassembling and reassembling after about 100x. Lol Hoping you might have an idea of what I can try? Would you happen to know size of screw and if I can just buy a set of screws that would work. I hope I'm saying the right screw but it's the one that goes inside the diff housing that screws in to to the spur gear and holds the out drive cups in place. One other question whenever you place the motors back in their specific place does the slipper clutch need to be sitting on top the motor gears or under? I keep having what sounds like something slipping when my truck revs high but will go about 1klm/h. Lol Thanks and I hope I'm not bombarding you with unrealistic questions.
Have you done a video of how your supposed to grease the outside
I am having trouble unscrewing the 4 differentials screws. Tried on the front and back stock differentials, some of them are just too tight, so I bought the metal version from Aliexpress and its still the same.
I got this truck for my son and I had a few questions. This video is very helpful and answers most everything. I’m new to RC’s and I’m curious, when I’m holding the truck and it’s off, if I turn a single wheel should all 4 turn in their proper directions? Or just front or back?
William Wilkes I agree with your praise of this channel, he is doing a great job and provides the best information available on TH-cam. I am also new to RC, and just got this truck as well. Having said that, I think your question about the wheels is best explained by this trucks open differentials. Basically if one wheel gets stuck, the power is diverted to the other 3 wheels for better handling. If you would like to lock the rear differential it would make the truck behave differently if you primarily use it for off road applications. Hope my info is somewhat accurate, and somewhat helpful.
Its the ring gear.. The planetary gears are the ones inside the diff :-)
Whatsup Moodog, isn't it necesary to grease the outside of the front differential again after you cleaned it with a rag and close the cover again? I am servicing mine as we speak.. so please advise. Thanks!
What type of tires are those? Thanks for posting! Really big help!
tms1643 also interested
I have a truck like this and for some reason it's only front wheel drive now. Can you tell me how to fix it please?
Great video no music while you were talking and who is the republic
hi, what changes do you have to it? I notice you have changed its suspension, can you give me more details? Have you changed his battery? I would like to put an 11.1V or even a 14V battery do you think it can withstand a 14 battery?
Need help please. Okay so the rear hex nut snapped off. So the bar that the wheel nut screws to has be snapped off with it. What part do I need what's it called?
I tell ya you sure made taking those 4 screws holding the lid on easy to get off. I can't stop the screws from stripping when I try and unscrew them. Brand new part. Ugh. I wanna get it open so I can grease it up!
Hello brother i like your work . You can make a video with these car when get wash please?
And u can make an update about how it rezist after one year?
Hi I have the 9125 I just got and I already cracked a rim I wanted to get tires and rims like you have can you send me an amazon link please and can I use the 3s Lipo for my truck? I want more speed out of it! By the way new sub here!! 💥💥👍👍👍
Hey love the videos. Thanks its very informative. Just a quick question. Are the gp toys 920 the same car as the hasim 9125 and the xinglhong 9125? Basically the parts are interchangeable?
Thanks for the great video
Eric
While I'm not a hundred percent certain, it certainly looks exactly the same as this car, the Hosim 9125, and the Laegendary 1/10th scale "Legend". I personally have the Legend. It's a little more expensive but it comes with two batteries and has upgraded shocks that are oil-filled. All the parts are interchangeable and have the same part number
Hey I have this 4WD drive truck sprint and my throttle is shhyt it glitches seems to like hop twitch if I squeak the throttle slowly it will move if I hit a certain sweet spot but as soon as it its grass or has to use power it stops an glitches HELP PLEASE
How do you set sevo end points
I was on xinlehong Facebook and this guy in another country has found longer suspension arms and a lot of other upgrades I have seen them it’s like eBay in some other language can you do a video on those
Hey there.. I'm not sure I follow what you are asking here. Could you link the vid for me and I will do my best to try to help you out with that. Thanks for watching and SUBSCRIBE for more cool stuff 😎!
I just got one can it go through water
Hello
Someone find more aluminium pieces to upgrade this car?
I want put the most parts that I can in aluminium or steel.
Hey I just got this truck for my son. It’s not having issues pairing to the remote. The remote red and blue lights will go solid. But the truck LED continues to flash
Turn off the controller and the truck. Then power on controller and within 5 seconds, power on the truck. I had the same issue, and the 5 second pairing seemed to fix it for me. Hope it helps.
The hardest part is getting all those screws out for the first time, and totally disassembling the car just to get to the part you want to replace.
I got it apart and the part replaced, but can't figure out how to put everything back together, I could sure use an exploded view that shows where everything goes, my truck didn't come with a manual or exploded view. so having a hard time finding where all the screws go, all different lengths.
How do I do the back of the truck?
Where can I get those tires at and what are they called?
Does anyone have any experience using dry graphite to lubricate the
differential?
Hello, I have a problem with my 9125 vehicle. The vehicle accelerates by itself when I touch the gas trigger, I cannot control the speed at all, it does not go behind.
What could be the reason?
Hi there! Great video! I really need to know the dimensions of that servo motor so I know it will fit into my car, since my RC car broke down, and that type is the only one on amazon with 5 wires that I can get. Please respond as soon as possible! :)
Can you please do a video/advise if you'd reccomend running a 3s lipo with everything else left stock? Thanks!
Hey there! Thanks for the comment. The 9125 uses a 60A ESC/receiver. As such it should have no issues with a 3S lipo. I intend to try it someday soon. If you do give it run, you do so at your own risk. Thanks for watching!
@@LeSiZmOr Thanks for your reply! I'm more concerned about the 390 motors, would they fry over a period of time if I run 3s? Thanks again!
@@sl4y3r1988 Well, keep in mind first that this truck wasn't designed to run 3S batteries. The ESC is however "rated" @ 60A which will handle 11.1V.. I think that 3S would be okay to run, but I would be mindful in checking ESC and motor temps periodically. Thanks for the good questions. Hope this helps.
Also.. these 390 silver can motors are pretty generic and easy to find. These are not open can design where you can replace brushes as they wear out, so once they are done.. you yank em and get new ones. I'm going to do some experimenting with 3S in this truck in the next few weeks and probably post a video. I won't recommend my viewers run anything other than intended batteries, but you should be able to without too much trouble. As far as premature burn up of these motors.. assuming they are rated at at least 7.4V each...11.1V shouldn't be too much an issue. Accelerated wear may be more an issue on drivetrain parts such as outdrive cups and CVD/dogbone, driveshafts, diffs, ESC. If you go for it , check the temps frequently.
Lee Pereira I use a 3s Li-Po battery at all times on my Hosim 9125. It runs much faster, I’m sure that the Low speed on 3s matches the high speed on 2s. Also the high speed makes it hard to accelerate because it will do a backflip off the line. Just make sure to slowly get things rolling if I’m high speed, or just start in low then switch to high while driving. It does get hot, but never enough to shut the car off.
Was there a reason you didn't grease the outside of the dif again before you put the top cover back on? Or did you just forget to do it?
Probably just forgot. Nice eye! Thanks for looking in.
@@LeSiZmOr Yeah was just watching the rebuild and was confused, lol, figured you probably just forgot.
What grease do you use on the outside of the dif?
I just use a good quality marine grease.
There are hobby greases you can buy that are silicone based and lighter weight, but I've been running the marine stuff with great results.
those gears are called spider gears. plannetary gears are cyliindriccal in shape.
Thanks. I knew I had it wrong.
Those aren't stock wheels and shocks, are they?
I recently swapped to 3s 11.1 batteries and my esc is getting hot on my xinlehong 9125 can you tell me a fan that will work or tell me how to wire one thank you
Did you work out what fan to add?
How did you mount it?
Any links to what you used?
Just bought the same tires an same truck
you forgot to regrease the crown and pinion gears when you put it back together didn't you?
I took apart my steering gear. Now I dont know how to put the gears back in order. Any videos on that?
Ooo. Actually no. I'd have to pull mine apart and have a look. I'm gonna be ordering some parts for my 9125 soon and will have a look. Stay tuned for a revisit of this cool truck here on my channel. Subscribe for all the latest!
Thanks for looking in!
MooDog's Frugal R/Cs! I hope the revisit shows how to connect an led light kit. Please link to all products you have used in description.
i pulled my son's truck apart and replaced the servo but after reassembly, the car will not run. both the front and rear wheels on the left and right side of the car are turning in opposite directions. Any ideas as to why? Thanks.
It seems, from what you are saying that you probably installed one of the differentials backwards. This may require a tear down and flipping of one of the diffs. It happens. Just pay attention to the direction of the geared sides of the diffs. They need to match on both ends.. Thanks for watching.
What size screwdriver size do you need for this model.
Hello there! I believe I'm using a 1p for most all screws. Thanks for the comment and stay tuned for a 3s run of this truck!
My car steering lately became very sluggish and slow. What can be the cause?
Try replacing the servo. The servos in these cars have something to be desired.
i make the changes in mi 9125 like you but i have a problem the rims are too weak and brake can someone put a link of wheels or rims that are good.thanks
Yeah. These wheels are hot or miss. Contact the seller, they should be able to help you.
@@LeSiZmOr thanks but i buy on bangood...i try find a good rims.
My Girlfriend has this truck and the out drive cups keep braking have you encountered this problem.? they brake all the time..
Mine doesn't get that much play these days. I need some a A arms and different shocks.
My rear cups are egg shaped instead flat slotted. The metal XLH uses for these drivetrain parts is cheap China pot metal. Breaking them offer doesn't seem outside the realm of possibility, however, a lot of people will watch someone else's videos and determine they want to run 3s / 4s packs and just mash the throttle and slam stop at full speed. Not designed for this. Parts will fail.
@ty pyper yeah every time she replaces it it does not last
@@LeSiZmOr yeah i was worried about cheep metal but she wanted something cheap as possible i did not hear about this problem and people seam to like it so i told her it seams fine. she runs only 2s and mostly drives it on our backyard track still braking out drives the last replacement did not even last as long as the original..
Why didn't you grease the inside of the diff case, that's metal on metal contact. You wiped out the old grease but never replaced it with new grease.
What size shocks did you upgrade with?
These are 95mm.. The spec is for 80mm (I think).. I cut a few coils out and they work awesome!
Check out my other 9125 videos! Thanks for looking!
@@LeSiZmOr awesome vid bro. I'm looking to buy my 1st RC and this 9125 is to my liking. What's the link to those upgraded shocks? Thank you!
What kind of grease do you use
Waterproof marine grease
is the planetary gear same as s912 and s912?
Not sure what you are asking. If you mean to ask if 9125 and s912 share same diffs.. I'd have to check. I don't believe so however.
I mean is the gear inside of diff of your 9125 is same as the gear inside of diff of s912
You actually don’t need to remove the shock tower. It makes life a hell of a lot easier without having to uninstall and reinstall those 4 annoying screws
Rear knuckles....anyone...lol. I cant seem to understand how to get the rear knuckle off. I dont see any videos. It has a pin, no screw head.
I have the same problem! Did you work out how to get it off?
hi
Não gostei diaece que ia aparecer o GPTOYS s920 mentiroso huuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
This is the worst video. You say to remove the screws in each of the four corners but then you only show the top two removed. Then you say I went a head and removed the shocks from some but you didn’t show me how. What the hell kind of video is this if your now showing how to do it.