input gear trouble!

[tallyram]

i'm using a gmaxx single speed converted emaxx tranny. i seemed to have thrown out the two pins that attach the input gear to the input shaft. how do i prevent this with my new input shaft and gear? thanks for any help!

[BrianG]

I don't have personal experience with this but I've seen people recommend to use a nail and bend over the ends. It is supposed to be stronger and quite cheap! :)

[tallyram]

hmmmmmmm? sounds a little ghetto, lol.

[JOHNNYMAXXIMA]

I used one of my hex wrenches (can't remember which size though) It's a bit of a tight fit and may have to be carefully pounded in, but once it's in there just cut off the extra with a dremel if youve got one. Havn't had it break since and I've got alot of torque from the dual brushless.

[giftacrylic]

I did the same thing with a hex wrench, then added some JB Weld to make it solid and permanent.

[Mike.L]

Originally Posted by JOHNNYMAXXIMA

I used one of my hex wrenches (can't remember which size though) It's a bit of a tight fit and may have to be carefully pounded in, but once it's in there just cut off the extra with a dremel if youve got one. Havn't had it break since and I've got alot of torque from the dual brushless.

Jhonny maxxima, yes hex alen keys are very durrable, and should never snap on you. I thought know one would have knew:027: :005:

[tallyram]

thanks for the suggestions, i'll try something today.

I had the same problem, i drilled them out on a pillar drill and then put a M3 hex head nut and bolt through it just misses the gearbox casing as is superstrong

Cheers Adam

[neweuser]

sjcrss used a hex wrench too. if i break mine sometime, i will do that method...seems cleaner!

[coolhandcountry]

I used a spook out of a bicycle rim I had laying around. I have had zero problems since. I broke another stock setup. I may see about the allen wrench trick. I wonder if I spot weld it if that would hold the pin in. :D

[tallyram]

i used the "needle" out of a tach-it gun. its like the stock pin but a lot stronger. thanks for the help everyone!

[sjcrss]

and yes I just broke my original allen key fix from over 4yrs ago.... I broke the roll pins back when I first got my Ultramaxxed gears, thought of the allen key trick, and just broke that last weekend.....allready fixed and running again...

[sjcrss]

CHC, good luck trying to spot weld a hardened allen wrench to I think the input gear is cast steel...( don't quote me)..but they are 2 different metals.....you could braze them as long as you used a braxing rod w/ flux around it...and a oxyacetylene torch to do it......

[coolhandcountry]

Originally Posted by sjcrss

CHC, good luck trying to spot weld a hardened allen wrench to I think the input gear is cast steel...( don't quote me)..but they are 2 different metals.....you could braze them as long as you used a braxing rod w/ flux around it...and a oxyacetylene torch to do it......

Accually I thought the gear was hardened steel. That is why it don't wear out on the metal idler gears. I have heard of people using them for pinion gears on a metal spur. I got some other fixes if it don't work. I may try it and let you know. If I put a spot on each end of the allen wrench so it don't slide thru is all that is necessary. I don't have a brazing torch. I do have a welder.

[sjcrss]

if your using a mig welder, just take your time and you can actually take a drill bit and drill a little indentation where the pins come out, that way your spot weld has some penetration into the metal.. also don't run the welder to cold....might want it a little on the hot side...if you know what i mean...this way it will be a quick spot, and you should get a good spot weld...