Clutch? Starter? Both? (NA6)

speed · Postby **speed** » Wed Apr 22, 2015 6:48 pm

Re the o ring. Don't need genuine Mazda but do need it to fit your mazda ;)

aka_juffa · Postby **aka_juffa** » Thu Apr 23, 2015 10:56 am

As already stated no need for an original Mazda O ring.

The size of O Ring needed is 1/8” width, 1 ½” ID, 1 3/4” OD.

Or use part BS222

https://www.blackwoods.com.au/part/0509 ... -x-18-sect

http://www.miata.net/garage/cas_oring.html

J

dsjoyce · Postby **dsjoyce** » Thu Apr 23, 2015 11:32 am

Much obliged!

RS2000 · Postby **RS2000** » Thu Apr 23, 2015 11:41 am

Any bearing supplier (eg cbc) will also have a large stock of 'o' rings.
Cheers

dsjoyce · Postby **dsjoyce** » Fri Apr 24, 2015 12:46 pm

So a slave is about $70 (daylight robbery) but a rebuild kit about $11. Apparently the rebuild take about 5 minutes, anyone tried this with success?

RS2000 · Postby **RS2000** » Fri Apr 24, 2015 2:23 pm

Rebuild kit is fine if slave cyl bore is in good condition

Cheers

Purfler · Postby **Purfler** » Fri Apr 24, 2015 3:06 pm

While you are at it, get a rebuild kit for the master cylinder and do that too. One less thing to worry about for a good few years.

Tim

hks_kansei · Postby **hks_kansei** » Fri Apr 24, 2015 4:56 pm

Purfler wrote:While you are at it, get a rebuild kit for the master cylinder and do that too. One less thing to worry about for a good few years.

Tim

Worth noting that these are actually getting harder to find in Aust.
Repco, Bursons etc don't seem to have MX5 ones listed in the catalogue.

Pretty sure my GF looked up and found that a BG 323 master cyl kit is the same

Mr Morlock · Postby **Mr Morlock** » Fri Apr 24, 2015 8:25 pm

rebuilding master cylinders and slaves etc have gone out of fashion. In the old days it was common but then everyone wanted to do things on the cheap and not for integrity and also labour / overheads are now so high that its more economical to buy new product. You can apply this to almost everything- people throw out better bikes that some of us ever owned. It was not that many decades ago that par for the course was retread tyre and almost no one with a passenger car would do it today - not even sure if they can be bought.

dsjoyce · Postby **dsjoyce** » Sat Apr 25, 2015 1:33 pm

Ive ordered the rebulid kit, should come in next week. Im not keen to pay 180 for genuine mazda and reading around it's not uncommon for the aftermarket ones to fail within a year. Rebuild is worth the gamble I feel and hey, I might learn something

Also got the CAS o-ring, will give it a go tomorrow.

Im still confused about the slave, if my master is full, doesnt this mean that I don't have a leak? Doesnt this point to something mechanical failing somewhere rather than hydraulic?

93_Clubman · Postby **93_Clubman** » Sat Apr 25, 2015 1:41 pm

dsjoyce wrote:Im still confused about the slave, if my master is full, doesnt this mean that I don't have a leak?

Initial clutch slave cylinder leak is typically very slight & only detected by peeling back the clutch slave cylinder rubber boot to reveal a little hydraulic fluid.

TrackAttack · Postby **TrackAttack** » Sat Apr 25, 2015 2:04 pm

dsjoyce wrote:Im still confused about the slave, if my master is full, doesnt this mean that I don't have a leak? Doesnt this point to something mechanical failing somewhere rather than hydraulic?

Its not just the fluid leaking out, its the air leaking in.

dsjoyce · Postby **dsjoyce** » Sat Apr 25, 2015 2:19 pm

Ahh yep ok that would make sense!

Nevyn72 · Postby **Nevyn72** » Thu Apr 30, 2015 10:58 am

To follow on from this discussion, Fab9 in the US have just listed a complete clutch referb kit which includes new Master and Slave cylinders plus a braided line.
At ~US$57 + shipping it's pretty good value!

http://fab9tuning.com/index.php?option= ... 73&lang=en