LukeLuke

Hi guys, I've looked around and found symptoms on what causes what noises but I can't find anything on how to test the thrust bearing? I've got the gearbox out and don't know what its supposed to sound like or feel like?

Ceylon

iTrader: (3)

As you currently have the box out, you may as well replace it for longevity, they're not expensive.

tt7hvn

iTrader: (5)

^ agreed. It's worth the hassle of not having to replace it if it's bad after you figure it out.

LukeLuke

The thing is that I've got 2 throw out bearings and the one doesn't sound healthy and the other one sounds better when I turn them but I don't know what a new one is like so I can't really judge. I'm in SA so to import one would probably take 1-2 months and be close on 150$

cr7684

iTrader: (42)

As you rotate the bearing it should feel smooth free of any hang ups & grinding or harsh sounds.

Sgtblue

iTrader: (16)

Check with your local parts supplier. Not certain, but a chance that MAZDA used the same bearing on other models...i.e. their small truck. It might not take as long as you think to get one.

dgeesaman

iTrader: (7)

The bearing should rotate smoothly. There should be some friction as the bearing is sealed and the seals add a little drag, but under load you should feel no grittiness or roughness whatsoever in the rolling contact.

If one spins freely, take that as a sign the seals are worn out. The t/o bearings I've handled will all refuse to "spin" but can be easily rotated with my fingers.

David

LukeLuke

Okay thanks for the replies guys!

Okay I see, the one t/o bearing spins extremely easily and would do a few rotations before it stops whereas the other one I have will only do about a 1/4 of a rotation before it stops and it feels less "dry". Thanks again!