Pressure plate maybe?

sen2two · 11-27-2011, 02:51 PM

My car has eaten 3 clutch master cylinders in about 3000 miles of driving. Mostly easy street driving with a few passes down the track. But I always used junk yard masters and figured i had bad luck with used parts. So I recently bought a brand new master and got a new slave cylinder as well. I pumped a lot of fluid through it just to make sure the line was clean. It took a really long time to build up pressure when bleeding also. Much longer than usual. And still never really felt right.

Now it engages and disengages about one inch from the floor. Same as my last used master cylinder was doing when it started to go bad. But I know it is a good master this time, as well as the slave. There are no leaks in the line or where it connects to the master or slave either.

Could it be the pressure plate?

I'm open to ideas...

djmtsu · 11-27-2011, 03:40 PM

Bent throwout arm?

sen2two · 11-27-2011, 05:12 PM

I guess that could be a possibility, I just don't see it bending for no reason....

JuanFelix · 11-27-2011, 05:28 PM

I would think the same aswell possibly bad throwout bearing, unfortunately only positive way is by separating the engine and trans and looking for damage closely in my opinion.

djmtsu · 11-28-2011, 07:33 AM

Quote:

Originally Posted by sen2two

I guess that could be a possibility, I just don't see it bending for no reason....

I have seen it happen before. Worth a shot!

Raksj04 · 11-28-2011, 10:16 AM

Would that pivot ball cause that issue, I know it may cause a failed disengaugement.

sen2two · 11-28-2011, 11:23 AM

Did some research and found that the T2 fork is much stronger than NA forks and is near impossible to bend. But, i have all the symtoms of a broken or missing alignment ball.

Sucks that such a cheap and easy fix is actually a pain in the ass since I will have to drop the tranny...

Thanks for the help

djmtsu · 11-28-2011, 01:04 PM

Do I get forum bucks?

I hope that is it, especially with the effort required.

Raksj04 · 11-28-2011, 01:35 PM

sen2two if it is indeed broken I have a mazda OEM still in the package. I could ship it to you for about $10.

sen2two · 11-28-2011, 05:24 PM

Quote:

Originally Posted by djmtsu

Do I get forum bucks?

I hope that is it, especially with the effort required.

Yes sir.

I wish there was a way to get at it without pulling the tranny...

Pete_89T2 · 11-28-2011, 05:30 PM

Quote:

Originally Posted by sen2two

Yes sir.

I wish there was a way to get at it without pulling the tranny...

Is this a T2 tranny? If so, you might try removing the small inspection plate on the bottom of the bellhousing, and maybe rent one of those fiber optic inspection cameras to get a look in there. Heck, you might be able to see the clutch fork & pivot ball by using a small enough inspection mirror & flashlight.

88turboii · 12-05-2011, 09:05 AM

what pressure plate are you running? ACT extreme has been known to bend TII forks

11-27-2011, 02:51 PM	#1
sen2two KTEC Join Date: Jan 2009 Posts: 642 Rep Power: 0	Pressure plate maybe? My car has eaten 3 clutch master cylinders in about 3000 miles of driving. Mostly easy street driving with a few passes down the track. But I always used junk yard masters and figured i had bad luck with used parts. So I recently bought a brand new master and got a new slave cylinder as well. I pumped a lot of fluid through it just to make sure the line was clean. It took a really long time to build up pressure when bleeding also. Much longer than usual. And still never really felt right. Now it engages and disengages about one inch from the floor. Same as my last used master cylinder was doing when it started to go bad. But I know it is a good master this time, as well as the slave. There are no leaks in the line or where it connects to the master or slave either. Could it be the pressure plate? I'm open to ideas... __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

11-27-2011, 03:40 PM	#2
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	Bent throwout arm? __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

11-27-2011, 05:12 PM	#3
sen2two KTEC Join Date: Jan 2009 Posts: 642 Rep Power: 0	I guess that could be a possibility, I just don't see it bending for no reason.... __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

11-28-2011, 11:23 AM	#7
sen2two KTEC Join Date: Jan 2009 Posts: 642 Rep Power: 0	Did some research and found that the T2 fork is much stronger than NA forks and is near impossible to bend. But, i have all the symtoms of a broken or missing alignment ball. Sucks that such a cheap and easy fix is actually a pain in the ass since I will have to drop the tranny... Thanks for the help __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2 Last edited by sen2two; 11-28-2011 at 11:27 AM.

11-28-2011, 01:04 PM	#8
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	Do I get forum bucks? I hope that is it, especially with the effort required. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

11-27-2011, 05:28 PM	#4
JuanFelix The Newbie Join Date: Oct 2011 Posts: 9 Rep Power: 0	I would think the same aswell possibly bad throwout bearing, unfortunately only positive way is by separating the engine and trans and looking for damage closely in my opinion.

11-28-2011, 10:16 AM	#6
Raksj04 I have Ultra power in me. Join Date: Sep 2011 Posts: 457 Rep Power: 14	Would that pivot ball cause that issue, I know it may cause a failed disengaugement.

11-28-2011, 01:35 PM	#9
Raksj04 I have Ultra power in me. Join Date: Sep 2011 Posts: 457 Rep Power: 14	sen2two if it is indeed broken I have a mazda OEM still in the package. I could ship it to you for about $10.

12-05-2011, 09:05 AM	#12
88turboii destroy, rebuild, repeat Join Date: Feb 2008 Location: Charleston, SC Posts: 395 Rep Power: 18	what pressure plate are you running? ACT extreme has been known to bend TII forks