Clutch master and slave cylinder repacement questions

[soulefx]

Ok, so the time has come to replace my clutch master and slave cylinders. I've been having problems with my clutch, and after reading through the forums, it seems that its either the master or slave cylinder thats starting to fail, so since its been suggested that both get replaced at the same time, thats my next project. But one thing i couldnt find much info on is which brand to go with. is ther a brand thats better than the rest, or are they all about the same?

These are some of the options that i'm looking at:
Pep Boys: LuK Original Master cylinder, Dorman slave cylinder
Autozone: Duralast Master cylinder
AdvanceAutoparts: Perfection Clutch Technovation Master and Slave cylinders
Rock Auto: Exedy, Rhinopac, Beck/Arnley, Wagner Master cylinder, (didnt see the slave cylinder in their catalog)

Is ther any one brand thats better than the rest or are they all about the same?
is there any brands that i should avoid?
Are there any other brands i didnt list that are better than these?


Also, is there any special procedure for bleeding the master cylinder? I found a howto for bleeding the the slave cylinder and it seems pretty straightforward. Once i install both master and slave cylinder, will following the procedure for bleeding the slave cylinder bleed the master cylinder as well, or are there additional steps i need to take to bleed the master?

[trf5000]

Online Mazda Parts

Don't mess around and go OEM. This place is the best place for OEM mazda parts.

[EdgeAutosport.com]

We can also get you an act clutch.

[soulefx]

Originally Posted by eric@edgeautosport We can also get you an act clutch.

thx, but I got the act street clutch installed last year after my clutch failed on me.

[06Speed6]

The pepboys luk/dorman combo is likely the oem manufacturers but I doubt its a oem quality part, generally parts sold to oems are higher quality than those sold to pepboys etc.

Ide stay far away from the rest.

Napa brand parts are generally fairly high quality as well.

[soulefx]

Originally Posted by superskaterxes if you have a speed3 then most likely its your slave cylinder. buy the newest rev from the dealer and you should be good. ive never heard of a master blowing out on this car in the last 5 years

Its a speed6. Were there revisions for the speed6 slave cylinder as well? If so, do you know what the latest revision is?

Originally Posted by 06Speed6 The pepboys luk/dorman combo is likely the oem manufacturers but I doubt its a oem quality part, generally parts sold to oems are higher quality than those sold to pepboys etc. Ide stay far away from the rest. Napa brand parts are generally fairly high quality as well.

I guess i should just suck it up and pay the extra for an OEM replacement?

[EdgeAutosport.com]

We also carry spec if you want one of those. We do have OEM stuff also if you want to go that route



Eric

[soulefx]

Originally Posted by eric@edgeautosport We also carry spec if you want one of those. We do have OEM stuff also if you want to go that route Eric

Hey Eric, How much are you selling the OEM clutch master and slave cylinder for?

[superskaterxes]

if you have a speed3 then most likely its your slave cylinder. buy the newest rev from the dealer and you should be good. ive never heard of a master blowing out on this car in the last 5 years

[Boosted Beluga]

The og slave cylinder was made of plastic and with the heavy duty clutch it will brake after awhile. This happened to me. The new upgraded slave cylinder is made of metal.

The master cylinder I would say yes spend the extra money.

[I<3Groceries]

I have replaced both and swapped in a braided hose as well, just recently. I agree the issue is more than likely the slave. But don't overlook the master. They may not "blow", but its seal can wear out after so long, just like anything else. Might as well do it, just for good measure. Honestly, I don't see why you don't just rebuild them both. Mazda sells rebuild kits. And they are cheap. You can pull the master, rebuild it and reinstall in 30 minutes. Slave is even easier.

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[Haltech]

I had no idea the new clutch cylinder is made of metal. Do the GenPu's have a metal one too?

[Mfinlay04]

total noob showing on this one, anyone have a diy or know where i can find instructions on how to rebuild these bitches. I think mine are bad, as my clutch pedal is "dynamic". If I drive out of boost the clutch engagement point is roughly the same. As soon as I go WOT the next shift the clutch engagement is totally different, and is at the top of the pedal, vs middle or bottom on every other shift. Not to mention the grinding has been getting worse as of late.

[jm211]

Whats wrong with a rebuild kit?

Its a 1/5 of the price and you maintain the OEM casing. You are just replacing the springs and o-rings.

TiGrayspeed6 did his a little while ago and so far it has been strong. He may..may have posted a how-to on 6forums but not sure.

[p057]

I dont think anyone is poo-pooing rebuild kit..

however, just like @Mfinlay04 , I'd like to know where a DIY is.

[Mfinlay04]

I'm just confused on the master cylinder as I know our brake and clutch share the same reservoir. So is the clutch master cylinder connected to the brake master cylinder? I know where the slave cylinder is as that is where i bled my clutch fluid at and easily accessable

[I<3Groceries]

No, they are housed separately. I guess you know where the brake master is. Well, the clutch master is nearby, attached to the firewall, just in front on the clutch pedal. When you press the clutch, a little rod protrudes forward, and into a little piston on the clutch master. Anyway, it is easy as balls to rebuild. Both the master cylinders really don't need a walk through. It is more difficult getting them off of the car than it is to rebuild them.

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[Mfinlay04]

Thanks I need to install my ebcs soon so when I'm installing that I'll locate the master cylinder.

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[ROLANDO]

Okay I have a problem. Replaced my slave cylinder last week with a brand new OEM cylinder. Car drove fine for a week, no leaks, no mushy pedal, then I had sudden clutch failure in a drive thru line. All of a sudden cylinder is hemorrhaging fluid from where the hydraulic line goes in, and my clutch won't even attempt to engage. Weird thing is there's still full pressure on the pedal. And before you ask, yes I put the gasket back in when I replaced it. Lost it and took forever finding it when I replaced it, so I'm positive it's in. Any ideas?

[Esteban123toro]

So today on my way home i was driving normally when i was about to shift something swallowed my clutch lol.. I haven't see a slave cylinder how to on the forums if anyone can sent me a link please i need to do this ASAP thanks

[mtosofsky]

So today on my way home i was driving normally when i was about to shift something swallowed my clutch lol.. I haven't see a slave cylinder how to on the forums if anyone can sent me a link please i need to do this ASAP thanks

Its easy bro. Order a new slave, unbolt the hydraulic line to it, unbolt the two 12mm bolts holding it on. Install new one and attach line and bleed the line.

[homeryansta]

Bought mine at 77k miles. @ 79k miles, Im already doing a slave cylinder job.

2008 ms3 gt.

How often do these thing go? I'm glad I bought warranty for this thing because I would be stuck with a hefty tow bill on top of repairs. Living in MN without a heated garage sucks.

[cocoleveo7686]

Originally Posted by homeryansta Bought mine at 77k miles. @ 79k miles, Im already doing a slave cylinder job. 2008 ms3 gt. How often do these thing go? I'm glad I bought warranty for this thing because I would be stuck with a hefty tow bill on top of repairs. Living in MN without a heated garage sucks.

I replaced both my master cylinder and my slave at 65k miles. then did my clutch at 68k miles

[homeryansta]

Originally Posted by cocoleveo7686 I replaced both my master cylinder and my slave at 65k miles. then did my clutch at 68k miles

Did your clutch? It went out that early?

[jmullins210]

I know this is years old but has anyone heard of a slave cylinder that can produce more force than the OEM? I am needing either the South Bend stage 4 or Clutch Master twin disc 725 to hold power down. I heard that with the stage 4 I would need to upgrade my slave cylinder as the force of the clutch would make the slave wear out quickly.

[anavrinIV]

Originally Posted by jmullins210 I know this is years old but has anyone heard of a slave cylinder that can produce more force than the OEM? I am needing either the South Bend stage 4 or Clutch Master twin disc 725 to hold power down. I heard that with the stage 4 I would need to upgrade my slave cylinder as the force of the clutch would make the slave wear out quickly.

How much power?

To answer your question....no. OEM is it.

[jmullins210]

From the set up I will be pushing 650-675whp.

[jmullins210]

The engine will be capable of 800-900, but I am only planning on going no more then 650-675whp. The reason behind this build is because I don't want to blow my engine ever again. Hopefully over engineering the engine internals my will never fail.

[Phat Mike]

Please help!! South bend stage 3 cluth installed by previous owner. Two week after I bought the car the clutch stayed on floor. Replaced the master cylinder. Now 2 weeks later same thing. Is there such thing as a heavy duty master cylinder?? Other remedies greatly appreciated. One frustrated father. P

[Db09ms3]

Check for leaks doobie, especially around the slave.

[Phat Mike]

Been there. Did that. Put a new slave on the first time. Any other thoughts? My wallets keeps jumping up.and down in.my pocket. All things being equal should the stage 3 south bend clutch be compatible with stock slave and master or is there a better quality slave and master or is it possibly something completely Different the car belongs to.my son so my heart kind of hurts for him. My wallet kind of hurts to oo. Thanks for the suggestion

[Db09ms3]

Search google about this, there has been a discrepancy in slave cylinders from Mazda. You need to do both a new line and slave from the dealer to actually fix this.

The next thing to go will likely be your clutch pedal bracket. Google all I just typed with mazdaspeed in the search.