rear caliper adjustment teeth stripped

[koop21]

Hey guys,

I recently bought a used na6 rear caliper but when i went to turn the adjuster nut it feel out and the teeth were stripped. Would replacing the adjuster nut be as simple as dropping it back in with a new one and hoping the internal is fine?

[timk]

Hopefully that's the case. It is definitely worth a shot anyway!

[Locutus]

i'm told that you can buy the nut as a separate part from mazda.

the alignment nuts/bolts in early models tend to work their way loose, so were altered slightly from NB onwards. if you are planning to keep the car for a while, it may be worth doing the lot as most of them would be rusty and not doing a great job. if you do the lot, it's MUCH cheaper if you purchase genuine parts from the US.

[koop21]

the reason i bought a 2nd hand caliper because it was cheap and my one leaks around the adjust gear/ handbrake part. Anyways just visited mazda parts centre they didnt have the adjustment gear instock, but a thought came to mind. If i take out my adjustment gear on my caliper and use it in the 2nd hand caliper i just bought would this work also? If so how do i remove the adjustment gear? does it just simply fall?

[Locutus]

sorry - disregard my last post.
i must have been half asleep at work when i typed that... i thought u were talking about your alignment bolts.

[mitch_f1]

Oh hey:
viewtopic.php?f=44&t=48116

You could also have a look down the adjuster hole and see if the teeth of the adjuster are stripped. It should be pretty easy to see if they are.

[koop21]

yeap was planning to do that; but apparently if the adjuster gear is wet with brake fluid the o-ring is gone. So im just gonna go purchase another caliper.

http://www.miata.net/garage/ebrake/index.html failure modes 2)

[mitch_f1]

Yeh if it is wet or corroded you have issues.