• Welcome to RCTalk! 🚀

    Join the #1 RC community where hobbyists connect, share, and get expert advice on RC cars, trucks, boats, drones, and more!

    • Friendly & passionate RC enthusiasts
    • RC tips & troubleshooting
    • Buy, sell & trade RC gear
    • Share builds & upgrades

Not a good noise...diff again maybe? CRAP

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.

BOUTCH

Hardcore RCTalk User
Messages
3,232
Reaction score
3
Points
0
Location
Canada, Québec
RC Driving Style
  1. Bashing
  2. Racing
:flaming: I finished bashing yesterday, and stopped to fill up tank and realized that i could heard some clicking and the 4 wheels would locked up...:gulp: i just upgraded the 2 diff to alloy and I'm 100% sure that i put them in properly, and i was wondering what else could make that clicking noise and make the wheels lock, AND its not my spur or the cluch bell eighter:wtf:
 
Did you shim the diff assemblies? Where is the actual noise from?
 
Did you shim the diff assemblies? Where is the actual noise from?

Shim the diff assemblies?
I'm afraid I'm not too sure where the noise comes from...did not try this too much, dont wanna break anything else for now. But if i had to say...i'd say the f.cking diff again... dont get it and it SUCKS !!! I'll check it out thoroughly later cuz gotta clean it cuz its VERY VERY DIRTY !!!

may have a worn outdrive cup?especially the brake hub cup.

:wtf: What will i need to get if that as happen...?

Idont think my savage likes me...
 
Last edited:
If there is clicking, check your drive lines. Make sure the dog bones or the CVD's are not bent or damaged. Then look at the hubs as Joneser said. ANything else, I would look to your tranny as it is easier to take off. Leave the diffs for last.
 
:wtf: What will i need to get if that as happen...?

Idont think my savage likes me...

Just get the HPI dual disk brake kit,it comes with a hardened steel hub/cup.It can be hard to see the wear in the cup because of the brake assembly.
 
See if any of the dogbones pop out of the cups slightly. They could have enough slack between the two out drives to pop out.
 
Just get the HPI dual disk brake kit,it comes with a hardened steel hub/cup.It can be hard to see the wear in the cup because of the brake assembly.

I do have the dual disk brake kit from hpi

Thanks guys gonna check all of the above tonight or after supper and will come back to confirm it after...:thankyou:
 
Last edited:
ohh thats probably not your problem then? Did you lok-tite the skrews going into the diff cup? I have had them back out and skrew up some diff gears.
 
i hope you get it fixed soon , I'm in the mood for some good old fashion bashing:radio: :w00t:
 
I do have the dual disk brake kit from hpi

I had that problem so much with the dual metal disk kit that I ditched it, put the fiber single disk back on and got a high torque servo for T/B duties.

It would do what my aftershock does, just not as bad. It would roll a bit, click, click, then lock up. I put it up on a stand, then spun the wheels with a drill so I could watch and listen when I noticed the disks would float to an angle, then bite.

If I could find a fiber equivalent for my aftershock I'd get it. The stock steel disks are getting on my nerves.

Check the brakes and like other said, the diff cups. The centers are the ones that go out most often. The ones on the trans always wore down on me the quickest. If you let it go too long, it binds on the dog bone and snaps them. Look for notches in the cups where the dog bone ears rub.
 
ohh thats probably not your problem then? Did you lok-tite the skrews going into the diff cup? I have had them back out and skrew up some diff gears.

:thumbup: Yes i did !! Just after giving her a bath 2-3 days ago...and now that i've put my daughter back to bed(she does not like to sleep so she get piss-off...whatever) gonna check everything i did not have time to do before and all that OLD97_Iss posted just now...be back later

THANKS !!!
 
Last edited:
I have the dual disk brakes, and what olds' said is true. The brake discs tend to "walk" on the hub, causing them to get at a slanted angle and bind up the works. The only fix, aside from a different brake setup, is to put a few O-Rings on the outdrive, to hold the discs in place.
 
i kept breaking diffs on my savage 25 with the 4 bevel gear conversion and figured out it was my driving style that was breaking them. and i havent broke a diff since that day
 
Back
Top