Bent 2-speed shaft?

[chrisexv6]

I've been eating spur gears like water, and no matter what I do I can't find a solution.

Re-set the mesh several times, locked down the engine with LocTite (after checking the motor mount for damage). Made sure the slipper was set correctly.

At this point I decided to tear down the tranny. Nothing out of the ordinary (a little dirt inside for some reason, I cleaned that all out). However, if I spin the shaft the spur gear mounts to (the 2-speed shaft, I guess), I *think* I see a slight wobble towards the threaded end of the shaft.

Does anyone know a good way of determining if it really is bent? I hear its an odd issue to have, so I'm not sure myself.

Also, my clutch bell makes a little noise when spun.........it isnt binding and doesn't feel like it has any resistance, but I'm assuming the bearings are shot. Could that cause a loss of spur gears?

Thanks!!!
-Chris

 

[SuperMaxx97]

if it looks bent it probably is. take it and put it on a flat surface and then roll it and see what it does. if it is going up and down it is bent. either way i would go out and buy a new one. i think they are liek $5

bryan

 

[chrisexv6]

Yeah, thats what I was figuring. I might just go "all out" and get a forward only conversion, which comes with a new shaft.

I'm bummed........I was supposed to have a nice "final bash of the year" but I only got 6 minutes run time before the spur gear wiped. And I hate puttin another one on without knowing what the cause is.

-Chris

 

[SuperMaxx97]

get the forward only. i just got it and man i love it, big difference. i had my maxx for about 4 years now and had my reverse in for about 2 days out of that 4 years. it pissed me off the second day i had it so i took the servo out and took a piece of wire and rigged it up.

bryan

 

[metallicamaxx]

wrong shaft. the forward only kit comes with an output shaft not the input shaft (2 speed shaft). :juggle:

 

[SuperMaxx97]

ya i forgot to say that!:cheeky:

bryan

 

[chrisexv6]

Whoops!! Ill buy both of those pieces then

Incidentally, any other advice on wiping out spur gears? Like I said, I've checked and re-checked the usual suspects.

-Chris

 

[SuperMaxx97]

that bent shaft did it, 1 more thing, do u got a center skid plate? if not i would advise that u get one. it wont let ur chassis flex as much. also is ur tranny tightened down??

bryan

 

[chrisexv6]

Well, the shaft isnt that bent, hence why I'm not even sure it is but there is definitely some wobble in it after I spin it by hand (I have to assume it gets exponentially worse under nitro-engine RPMs).

Dont have a skid plate yet, will probably order a full set of RPMs.

And the tranny was tight.........I actually got a bunch of the inserts, but could only get 4 in easily (each outermost corner). Those were loctited in, and the 4 in the middle of the tranny were tight and not stripped.

My clutch bell bearings sound a little noisy........have anythign to do with it?

-Chris

 

[SuperMaxx97]

shouldnt have anything to do with the clutch bell because unless it is off the shaft it can only move back and fourth not side to side.

bryan