harding the diff gears
 

Hi,
I have read alot about the diff gears going bad on the redcats and i was wondering if anyone knew what the gears are made of? cast steeel or cut from stock>
I know you can heat treat metal in an oven and with a torch and you can also dip steel in liquid nitrogen for a few days to harden up steel.
Would thiss work? if my gears go out on my EQ 3.5 i will try to heat treat the new ones.
Think out of the box

RE: harding the diff gears
 

Hardening metal requires expensive machinery, not a thing you can do at home. You can "surface Harden" steel at home by heating it till its glowing red then quenching it in oil. But this process only hardens the surface and leaves the rest of the metal untouched.

The liquid nitrogen treatment (cryo treating) you mentioned doesn't actually harden metal. It actually realigns the molecules of the metal into their natural state, strengthening their bond to each other. Machining, casting, forging, etc can push or pull the molecules apart, decreasing the strength of their bond to each other. Cryo treating doesn't strengthen metal, it makes it as strong as it can possibly be after you've cast, forged, machined and/or heat treated it.

RE: harding the diff gears
 

I would do spares! seems like more headache than to just buy another ( I guess rebuilding would suck over and over).

RE: harding the diff gears
 

I would just keep some spares.. they are cheap..... also what model is it? Have you opened the diffs and checked the side to side ring gear paly and the pinion play?

RE: harding the diff gears
 

I havent opened it up to check the diffs yet. Its new. Do I need to?? I have a EQ 3.5. Saving up money to get fuel and oils,ect...

RE: harding the diff gears
 

Okay well where did you get it? If it is new then you are prob okay. I had posted a few vids on youtube about diff probson my EQ8e and I fixed them and has been rock solid ever since and was pretty easy to do... But Redcat has adressed those issues since then..... The difference with the nitro and elec models is the diffs if not shimmed right would not last long in the Brushless elec modles because they made more initail pwr off the jump where as the Nitro models had to build up a little steam. I think you are okay./

RE: harding the diff gears
 

Hi,
Nathan here. My redcat EQ 3.5 is new. I also found a local hobbie shop. Yeahhhhhh.
One other thing. I put batteries in everything and i noticed the throttle servo likes to humm and stick open. i can hit brake for a second and it closes. can i fix this?
thanks

RE: harding the diff gears
 

It sounds like your servo horn may be stripped I would check that first turn it on and see if it centers after you take of the horn....

RE: harding the diff gears
 

Hi,
I dont get the horn thing your talking about. hope i dont sound lame.
Nathan

RE: harding the diff gears
 

I horn is the arm or horn that you screw into the metal gear on the top of the servo, somtimes the spline can strip out I would pull that off and turn the pwr back on and see if the servo acts the same.