Spur gear striped

[BlackHogDown]

What would cause my spur gear to get striped down to where theres no more teeth on it?

 

[Nitrobuzzard]

I'm assuming you mean in one area of the gear? Or is it all the way around it?

Number of things, gear mesh too loose/tight, engine and or mount loose, bad clutch bell bearings, to name a few.


-Nitro

 

[BlackHogDown]

and would replaceing it with a steel one be a good ideal instead of a stock plastic one?

I'm assuming you mean in one area of the gear? Or is it all the way around it?

Number of things, gear mesh too loose/tight, engine and or mount loose, bad clutch bell bearings, to name a few.


-Nitro

The whole gear all the teeth are gone.

 

[Nitrobuzzard]

Steel gears are always better but you still need to find out what's causing the problem.

-Nitro

What vehicle you running?

 

[BlackHogDown]

I have a redcat raceing earthquake 3.0 modle I've had it for 3 days now.

One thing I'm wondering is if it might could have been because i hit the brake to fastand the cluch bell may have got stuck and kept runing.

 

[Nitrobuzzard]

I wouldn't think that would have caused it. Generally if the clutch shoes hang, it will choke the engine down and stop it. I'm not familiar with the redcat lineup...you may be able to get a Kimbrough gear for it. They are really good, I actually run those gears instead of steel on my trucks. Made out of nylon instead of the rigid plastic thus resulting in more flex and less stripped gears.

Make sure everything is tightened down, engine and mount, and replace the gear. when you replace it, make sure you have just a little bit of "play" between the gear and the c. bell. Using a piece of paper between the two usually gets it real close to the proper mesh.

While you have the gear out, check the c. bell for slop in the bearings. Some bearings dont last long if the engine temps. get too high.

Hope this helps ya out..I know it can get frustrating when you first start this hobby. good luck

-Nitro

 

[BlackHogDown]

Ok thanks I'll check eavry thing and see what things look like the spur gear is a 43t and the redcat sell replacement stock ones and a steel one too.

This is there steel one

http://www.redcatracing.com/RC-Cars/Redcat-Parts/MPO-017

 

[Nitrobuzzard]

Thats actually a cool looking rig...looks built tough as well.

I checked Kimbrough and they don't make a gear for it. I'd say go for the steel gear...and at that price..ya can't beat it.

 

[Gummybear13]

did you ever find out what stripped the gear out? just curious because I am thinking of buying the 3.5 earthquake...

 

[Tombomb]

Maybe SAND?

 

[Scrogg]

Too tight of a gear mesh, Broken/ bent engine mounts or chassis. Loose screws allowing flex. The first thing I'd say is the idle is too high, the clutch is dragging while you have the brakes applied and creating heat. The CB eventually gets so hot it melts all the teeth off. Savage composite shoes are bad about doing this. Running on grass causes a lot of clutch heat too.

 

[BlackHogDown]

I was runing on grass allmost all day.

 

[Scrogg]

That will do it. Point your temp gun at the clutch bell. It will hit 180F on grass easy with composite or teflon shoes.That's obviously hot enough to melt plastic. Switch to an aluminum clutch with 1.0 or .9 springs. The clutch will barely break 130F.
This is not some B.S. I made up. I had the same issue with my Savage with stock clutches on grass. I checked the temps and switch to al. shoes. Never had another issue. CB bearings also fling out grease when they are new. This will cause slippage and heat. Run one tank on a new set of bearings. Pull the engine and remove the CB. Degrease the inside of the CB, there will be grease everywhere. Reinstall everything and you will be good to go for a while. Your clutch shoes will last 3x longer as well.
I even go as far as removing the annodising from al. shoes. It just creates debri inside the CB if you don't. I noticed a huge improvement in clutch life after doing this for the first time not too long ago.

 

[98cruiser]

Newbi Help!!!!!!!!!!!!

Scrogg I'm a newbie to this with a redcat 3.5 earthqauke semi truck. so I dont understand all the terminologies, I replace the big black plastic wheel and all the parts that came with it, but it still isn't driving right, it seems like in (real car) the clutch is slipping. not sure what is going on what else do you think is the problem, and try and break it down to me cause I dont know what you guys call all the parts......

That will do it. Point your temp gun at the clutch bell. It will hit 180F on grass easy with composite or teflon shoes.That's obviously hot enough to melt plastic. Switch to an aluminum clutch with 1.0 or .9 springs. The clutch will barely break 130F.
This is not some B.S. I made up. I had the same issue with my Savage with stock clutches on grass. I checked the temps and switch to al. shoes. Never had another issue. CB bearings also fling out grease when they are new. This will cause slippage and heat. Run one tank on a new set of bearings. Pull the engine and remove the CB. Degrease the inside of the CB, there will be grease everywhere. Reinstall everything and you will be good to go for a while. Your clutch shoes will last 3x longer as well.
I even go as far as removing the annodising from al. shoes. It just creates debri inside the CB if you don't. I noticed a huge improvement in clutch life after doing this for the first time not too long ago.

 

[Metalhead Matt]

Big black plastic wheel? You must mean the spur gear. Is there a metal nut in the center of it? If so, it's the adjustment to your slipper clutch. It's most likely loose. Do you have your instruction manual? If so, read through it and learn the terminology. It will make it a lot easier on yourself when you have to fix the truck.

 

[98cruiser]

thanks Metalhead, yes it is the spur gear, but I put every thing back on new, including the nut. but the nut is hard to tighten, it seems like when I turn it the whole thing turns with it

Big black plastic wheel? You must mean the spur gear. Is there a metal nut in the center of it? If so, it's the adjustment to your slipper clutch. It's most likely loose. Do you have your instruction manual? If so, read through it and learn the terminology. It will make it a lot easier on yourself when you have to fix the truck.

 

[Metalhead Matt]

It may be tightened all of the way, or you need to hold the spur firmer. I'm not familiar with your slipper setup. If you determine it isn't the slipper, it may be the clutch bell. Your shoes may be worn or broken.