Typhon Typhon 3S - Grinding when accelerating

[Heinz]

Update - Thanks for all the advice. New parts arrived from the USA, diffs swapped out, oil topped up on both diffs. Car is running way smoother now!

 

[Just a hobby]

Well, I found the cause of the grinding. It's a worn input gear.

View attachment 319938

Once the input gear teeth start getting that thin sharp pointed look replace. First time I inspected the diff gears. I thought look fine a little pointy. Greased and put back together, First 5 minutes and the rear input gear craped out. Lesson learned.

 

[CosmoM3]

Unfortunately the plastic input/diff gears will strip again eventually.

 

[Heinz]

Unfortunately the plastic input/diff gears will strip again eventually.

I guess the longer term solution is to go metal?

 

[CosmoM3]

I guess the longer term solution is to go metal?

At that point with the money you spent, you're already near 6S territory.

After going around the block with these things, I just prefer the robustness and build quality of the 6S line, especially if you're going to spend a ton of money upgrading and beefing up components. It's just not worth it.

I loved both my Typhon and Vorteks 3S, but both had durability issues with the powertrain. You get a lot more out of the 6S line and you can run 3S on them if you want, especially the Typhon.