Crunching sound when full throttle & brake hard?

[superek4]

hi,

i just convert my friend's Losi8T Version 1 using Losi conversion.

Test run the car it gave out a crunching sound when full throttle & hard brake.

When low speed its ok. May I know what went wrong before I strip the car? The race is this sun & I still have another car to test?

Pls help thxs!

[brushlessboy16]

spelling and grammar help.

check your gear mesh

I would say check the diffs but since it is happening under acceleration AND braking- it would mean that both diffs are not shimmed correctly-very unlikely.


Check your main motor gear mesh.

[superek4]

sorry for my spelling & grammar i use too much Singlish(short cut English in Singapore) lol, thx alot

[MetalMan]

Also, check to see if shimming the center diff bevel gears will help.

[wallot]

most likely stripped pinion/bevel gear with metal pieces flying in the diff case. did happen to me in my mugen (diff was over a year old).

Wow samething with mine. mmm 2200kv Only at acclerating an braking i checked diffs an there all good. No metal flakes. The local hobby shop said thats normal wit electric conversion. Not sure that noise is scary.

[superek4]

What car are you driving? Losi8T is plastic spur should not have sound.

Mine CRT is metal gear but not crunching sound.

[gtxracer]

Spur gear chipping off teeth, if it's plastic. Otherwise you need to tear apart your drivetrain and find the weak link.

yeah its a metal spur. crap i guess it's time to tear it apart then

[brushlessboy16]

the quicker way to do this is to hold wot and drop the truck onto carpet. that will find the weak point really quicklyy

[gtxracer]

lol ^

Please don't try that.