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Old 07-21-2009, 12:23 PM   #1
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Default MTX4 1st. gear stripping out.

Need to know how to get longer life time out of 1st gear, it seems its always the first to get stripped, second holds up pretty good, three quals and then a 20 or 30 min main then strip, are there meshing ways to fix this, moving the engine when i start to see wear on the gears, bearing problems or a combination of all i dont know, im trying to figure out can you do a full day of racing on the same set of gears and if so how to settle my gear stripping problems, any help would be appreciated thanks.
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Old 07-21-2009, 12:42 PM   #2
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Retrofit a Kyosho RRR trany, and the gears will last you a while.
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Old 07-21-2009, 01:14 PM   #3
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I have a mtx4 and I am still running the same gears I started the season on. The thing I found to help stop the 2nd gear stripping problem is to set the gear mesh tight from the start. I have not heard of anyone stripping first gear.
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Old 07-21-2009, 01:18 PM   #4
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Originally Posted by the_geeky View Post
Retrofit a Kyosho RRR trany, and the gears will last you a while.
The initial cost is way high, Kyosho gears's cost are way high. Plus they dont hold up good.
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Old 07-21-2009, 01:52 PM   #5
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sounds like your mesh is too loose at the start.

also make sure your clutch play is exactly .3 any more and the bell will rub
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Old 07-21-2009, 01:54 PM   #6
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Originally Posted by Loveless View Post
Need to know how to get longer life time out of 1st gear, it seems its always the first to get stripped, second holds up pretty good, three quals and then a 20 or 30 min main then strip, are there meshing ways to fix this, moving the engine when i start to see wear on the gears, bearing problems or a combination of all i dont know, im trying to figure out can you do a full day of racing on the same set of gears and if so how to settle my gear stripping problems, any help would be appreciated thanks.
fisrt check make sure the motor is secure it may seam tight but the top screws on the rear motor mount may be hitting the bottom screws making it seam tight 2nd set the mesh by the 2nd gear remove the 1st spur then set the mesh 3rd make sure your throttle servo isn't pulling the motor forward 4th replace the 2speed assembly with the newer version I don't have the part # handy right now if that fails I will catch you at the track & look at it because the trainning camp rolls like that

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Old 07-21-2009, 02:03 PM   #7
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There are a few things to check if you are stripping out first gear:

1. Make sure you have the gear mesh set correctly
2. Make sure your first gear on the clutch bell has not knife-edged on you (worn out). If so, replace it with a new one.
3. Make sure that the first gear is not worn out as well
4. Make sure your screws holding the engine mounts to the chassis are tight. Without a dab a locktite, they will loosen over time and let the engine shift a bit, jacking up the gear mesh
5. Make sure that the screws holding the engine to the engine mounts are tight or still there. Same rules apply with the locktite and sometime the screw heads will shear off a screw or two allowing the engine to shift under torque accelerations.

I say this because all of these thing have happened to me before. Also, there are many other factors for why your first gear stripped; the aforementioned are the main factors to look for/check.

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Old 07-21-2009, 02:55 PM   #8
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Thanks a lot guys for all of your help, very helpful,


BG RICK = I think my mesh was a lil lose.

Solo = My throttle was pulling the engine forward, i think that did it lol.

J lock = my two speed is knife edging.


once again thanks to all that helped me out on this problem,
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Old 07-21-2009, 03:11 PM   #9
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Quote:
Originally Posted by Loveless View Post
Thanks a lot guys for all of your help, very helpful,


BG RICK = I think my mesh was a lil lose.

Solo = My throttle was pulling the engine forward, i think that did it lol.

J lock = my two speed is knife edging.


once again thanks to all that helped me out on this problem,
Better get those gears changed, especially on the clutch bell if that gear is knife-edging or you will be forever stripping out your spur 2nd gear (learned that the very hard way). Glad that we could all help out; it beats racking your brains trying to figure it out by yourself (like many of us had to). Good luck and have fun racing!!

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Old 07-21-2009, 03:59 PM   #10
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Also launching your car uncontrollably into race surface barriers also causes gear stripping I 4got that one (LMAO)
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Old 07-21-2009, 04:01 PM   #11
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Quote:
Originally Posted by JLock View Post
Better get those gears changed, especially on the clutch bell if that gear is knife-edging or you will be forever stripping out your spur 2nd gear (learned that the very hard way). Glad that we could all help out; it beats racking your brains trying to figure it out by yourself (like many of us had to). Good luck and have fun racing!!

Juan
Yup those are the ones im refering to lol, gonna change'em thanks again.
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Old 07-21-2009, 06:39 PM   #12
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These guy's ROCK...now go feed that "mongoose" some snake. "O HELL YEAH"
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Old 07-21-2009, 06:40 PM   #13
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replace the cylindrical roller and the ball bearing int he two speed with a grub screw of the correct size (or cut one down) this is what some mugen racers do at my track to avoid gear stripping.
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Old 07-21-2009, 07:12 PM   #14
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Quote:
Originally Posted by Riketsu View Post
The initial cost is way high, Kyosho gears's cost are way high. Plus they dont hold up good.
A wealth of misinformation. The gears hold up at least as well and cost about the same amount of money... although I don't know if using the Kyosho transmission is the answer to the gear stripping problem.
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Old 07-21-2009, 07:37 PM   #15
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OK the only reason there should be any gear striped is because either gear mesh, or clutch bell bearing are bad or thrust bearing bad, engine moved ie gear mesh. People complain about this problem and most of the time say its the car, but most of the time its user error. I don't strip gears unless I miss the mesh. I know people that have never striped a gear.

Try cutting 2 strips of paper just enough to fit between the pinions and the gears and set it that way.
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