New here with some questions.

[Moeron]

I just acquired a used kart for my kids and it needs a torque unit...how do I know what one I need?

 

[Moeron]

Torq pic

Sorry posting from my phone and it not working well...here's the torque pic!

 

[Moeron]

Another pic

Another pic of the torque unit.

 

[Moeron]

Torque help

I am looking to rebuild or replace this but I don't know what type it is any help?

 

[KartFab]

30 series torque converter. They come in 6" diameter or 7" diameter. If the sheaves are not bent, you can probably just clean it up.

The sprocket even looks salvageable. What about the drive unit that is supposed to be on the engine shaft?

 

[OzFab]

Ok, that's half of it (the driven), the other half should be connected to the engine (the driver)...

It appears you have an asymmetric 30 series which are easily repairable (in most cases); what exactly is the problem with it?

EDIT: I just noticed you have two threads on this (which I've merged); please keep the same subject to a single thread...

 

[Moeron]

Great info! So The spring is broken and I can't get the nut off the end. I was going to heat it up any suggestions for how to secure the axle so I can get leverage to get the nut loose? Thanks for the help I appreciate it!!!

 

[dengieboy]

stuck nut

careful it could be a left hand thread try to see if you can move it the other way a little

 

[Half-breeder]

An impact wrench is suggestable to loosen the nut. After reassembly, don't forget to preload the spring on the driven. Then impact back on is recommended... but not nessasary.

 

[Moeron]

Any instruction on how to "pre load" the spring? Thanks again everyone!!

 

[Half-breeder]

https://www.youtube.com/watch?v=kmGY0qsgW4Y&list=UU9tLeV67lsEIrulgHA6t0wg