quick question

[ovcrwlr]

i dont know how many turns they are and when i go up in reverse its the front with the problem.

[Jcplante]

So its the same axle with the problem then? I would say the next step would be to pull the inspection window for the pinion and give it a little throttle while looking at the gears. If you can hold the tire and the gears are moving it has to be the pin or you somehow stripped out the hexes in your rims. If the gears are not moving check the pinion gear on the motor shaft. If that is tight and the motor is not spinning swap out the motor with the one that works and try it. If it still wont work check the wiring on the esc. Then after you check all of that if it still dosent work then get a new esc

[shaggy2112]

I wonder if u need more power to make them work correctly.

[The Jackalope]

Originally Posted by ovcrwlr

i dont know how many turns they are and when i go up in reverse its the front with the problem.

Okay, just to clarify the english here;

Climbing forward up the incline, the rear/downhill axle stalls.
Climbing backwards up the incline, The rear/ UPHILL axle stalls.
Then this would mean either the spur-pin, pinion, hubs are slipping. If not, then it's the ESC

BUT, If climbing forward OR reverse, it's ALWAYS the DOWNHILL axle that stalls, Then it's just clodstall. You need more torque, and your motors are just built for speed.

[shaggy2112]

Well im very interested in this thread being that I just recently ordered the banebots and am concerned they may not work as well as others have said they do. I went back and checked the specifics of the motors and found the voltage range for the motors which is between 5-15v with 12v being optimal....so at 7.2v you are running at the low end...will running 12v make the difference I dunno enough about these to know. One more thing about the 395s I noticed is the torque stall which is 16.85 in. and the max rpm which is 15500. Now if U look at the 390 motors the torque stall is higher at 18.85in and also has a lower rpm max at 12180. Does this mean the 395 motors stall a bit easier but run a bit faster then the 390 motor...from what I make of it that is the case. Is it enough of a difference to affect a crawlers clod stall....again I dont know enough about motors to know for sure.

http://banebots.com/p/M3-RS395-12

http://banebots.com/pc/MOTOR-BRUSH/M3-RS390-12

[Romad]

540 bigboy kit, steel gears hardened pins and new esc with 2.5 ghz tx/rx and youlll be fine... I kid, I kid. But, seroiusly though....
I think that Jackalope is on to something. First step is to try to isolate which axle. that will help and I'm confused if by front axle in reverse you mean "lower" axle. Lower axle "Clodstall". I am curious about this deal as well because with my suspension setup I have noticed the stall alot more and I plan on going 540 soon. This makes me think I should go with the Outcry esc first then look at the big boy swap. Hope it works out for ya. keep us updated.

[The Jackalope]

On the subject of clodstall, be sure to check the gear mesh between the pinion and first gear. If it's too tight, It creates excess drag in your drivetrain. And takes more power to turn those gears.

I sometimes forget after re-assembly. Did it just the other day .

[shaggy2112]

So does anyone know if im right in the 390s having more torque then the 395s?

[ovcrwlr]

ok so going forward up an incline, its the back axle. if i put the rear axle in front so i am going reverse on tx, then its still the rear axle that wontgo. so its only happening to the rear axle. i jus put new steel gears, pin plate, and pins along with the 395s on the truck at the same time. before i had 380s and it didnt happen. so the only thing i think i didnt check was the gear mesh [ thx jackalope ] if the gear mesh is good then its the esc? im not sure on the torque ratings i jus thought the 395s would give me a bit more than 380s. i jus got a gt3b to switch to and i guess the outcry esc is next. bigboy kit is gonna have to wait a bit not long i hope. ill check the mesh to be sure. thx for all the help!

[shaggy2112]

Keep us updated on what u find the problem to be.

[FATBOYrs10]

Originally Posted by shaggy2112

So does anyone know if im right in the 390s having more torque then the 395s?

yes! the 390 banebots have more torque than the 395's

[ovcrwlr]

bummer

[86atrack4]

Just got done with the install of the 395s and everything works perfect! There is a difference compared to the 380s that I removed, the speed is a faster given I'm using the 8t pinion. It does have more torque using a 7.2 4200 pushing up against a full 5 gallon propane tank all wheels were spinning at the same speed. I wanna test the rock pile in my back yard tomorrow and compare. The 390s do have a little more torque thinks its something like 2oz

[shaggy2112]

But as long as they are not stalling out and keep spinning it shouldnt be a problem...thats good news to hear...banebots got here today and are ready to go in. keep us updated atrack. A video would be nice. Need to change the title of this to banebot research lol...good info in this thread.

[The Jackalope]

Originally Posted by 86atrack4

Just got done with the install of the 395s and everything works perfect! There is a difference compared to the 380s that I removed, the speed is a faster given I'm using the 8t pinion.

just fyi. The 8t pinion is for more torque/ less speed than the 10t pinion.

[86atrack4]

Yea i know just comparing the 8t pinion 395s verses 8t pinion with the 380s

[ovcrwlr]

so i think my problem was a combo of things. since the 395s have less torque than the 390s to start with, plus i put 10t on instead of 8t that was on the 390s. also thegear mesh was a little tight i think cause i loosened it and the truck runs good now. little different than i want so gonna put 8t back on. glad it wasnt the esc. it had less torque than im used to but its crawlin! turned up the throttle a bit also to help compinsate. i think the steel gears take a bit more to move so i see 540s in thefuture.

[FATBOYrs10]

well i hate to be the one to inforn you of bad news, but your stock esc is goin to crap out on you, and prolly before you're ready for it to! i would invest in a new one to have before i bought 540's unless you decide to do it all when it happens. the stock motors, if they're takin care of, will outlast the esc for sure

[86atrack4]

Originally Posted by ovcrwlr

so i think my problem was a combo of things. since the 395s have less torque than the 390s to start with, plus i put 10t on instead of 8t that was on the 390s. also thegear mesh was a little tight i think cause i loosened it and the truck runs good now. little different than i want so gonna put 8t back on. glad it wasnt the esc. it had less torque than im used to but its crawlin! turned up the throttle a bit also to help compinsate. i think the steel gears take a bit more to move so i see 540s in thefuture.

I know the 395s have more torque and speed then the stock 380s I was using.

[ovcrwlr]

more torque than the 380s but feels like less torque than the stock 390 motors but not by much.