what the eff clutch, help! - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 08-02-2012, 09:48 PM   #1
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Oct 2011
Posts: 207
Total Cats: -14
Default what the eff clutch, help!

The past few days my clutch pedal has been real sticky, hesitating to pop back out when compressed. Today I am slowly pulling out of the bank and I give the clutch one good kick and bam my clutch is no more. There is zero resistance and obviously no clutch engagement. The clutch is a 6 puck which felt like it had a lot of life left. Could it be the throw out bearing, clutch, clutch booster?
TheDriver is offline   Reply With Quote
Old 08-02-2012, 09:51 PM   #2
Elite Member
 
Join Date: Mar 2010
Location: Detroit
Posts: 1,524
Total Cats: 27
Default

You can have someone press the pedal and look at the slave cylinder to see if it's still doing it's thing.
flounder is offline   Reply With Quote
Old 08-02-2012, 09:58 PM   #3
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Oct 2011
Posts: 207
Total Cats: -14
Default

There's a big pool of fluid on the ground coming from the passenger side, probably clutch fluid. It looks like possibly a line broke, ill post pics when I get home
TheDriver is offline   Reply With Quote
Old 08-02-2012, 10:10 PM   #4
Elite Member
iTrader: (21)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,689
Total Cats: 560
Default

Slave and/or master. Rebuild or replace both. Search for info. There's a step by step in the M.net garage section.

Passenger side indicates slave.
rleete is offline   Reply With Quote
Old 08-02-2012, 10:23 PM   #5
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Oct 2011
Posts: 207
Total Cats: -14
Default

Quote:
Originally Posted by rleete View Post
Slave and/or master. Rebuild or replace both. Search for info. There's a step by step in the M.net garage section.

Passenger side indicates slave.
I appreciate it, shouldn't be too bad to fix
TheDriver is offline   Reply With Quote
Old 08-02-2012, 10:27 PM   #6
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,202
Total Cats: 2,584
Default

I have a perfect condition master cyl if you end up needing one
18psi is offline   Reply With Quote
Old 08-02-2012, 11:04 PM   #7
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Oct 2011
Posts: 207
Total Cats: -14
Default

here is the pic I managed to snap, thinking this is the slave?

Attached Thumbnails
what the eff clutch, help!-miata1.jpg  
TheDriver is offline   Reply With Quote
Old 08-02-2012, 11:35 PM   #8
Senior Member
iTrader: (3)
 
Join Date: Nov 2009
Location: Royal Palm Beach, FL
Posts: 725
Total Cats: 5
Default

did u take the bolts off? I dont see any bolts holding it in place..
Clos561 is offline   Reply With Quote
Old 08-02-2012, 11:44 PM   #9
Slowest Progress Ever
iTrader: (26)
 
thirdgen's Avatar
 
Join Date: Oct 2007
Location: The coal ridden hills of Pennsylvania
Posts: 5,812
Total Cats: 187
Default

FYI...I just bought a clutch slave from
949 racing today for 14.99. Looks like you'll need 1.
thirdgen is offline   Reply With Quote
Old 08-03-2012, 09:29 AM   #10
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Oct 2011
Posts: 207
Total Cats: -14
Default

Quote:
Originally Posted by Clos561 View Post
did u take the bolts off? I dont see any bolts holding it in place..
the previous owner probably did, let's just say he didn't do the most pristine work.
TheDriver is offline   Reply With Quote
Old 08-03-2012, 10:08 AM   #11
Elite Member
iTrader: (21)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,689
Total Cats: 560
Default

Replace it anyway. Then you rebuild that one, and keep it as a spare.
rleete is offline   Reply With Quote
Old 08-03-2012, 11:48 AM   #12
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

Quote:
Originally Posted by rleete View Post
Replace it anyway. Then you rebuild that one, and keep it as a spare.
I rebuilt mine in the parking lot of work ($7), when it failed like that on the way to one morning.

I didn't even remove it, just loosened the two bolts IIRC.

I bought a replacement slave afterwards and it's been sitting in a box for three years now.
Braineack is offline   Reply With Quote
Old 08-04-2012, 02:33 AM   #13
Junior Member
iTrader: (1)
 
Join Date: Nov 2011
Location: Independence Mo
Posts: 109
Total Cats: 1
Default

If it is missing bolts, then the piston just popped out. One bolt goes missing, slave pivots, pistone moves too much.
Overtorqued bolts could strip and slip out of the aluminum trans over time.

Might have to drill and retap the bolt holes if so.
AkaZero is offline   Reply With Quote
Old 08-04-2012, 04:39 AM   #14
Senior Member
iTrader: (4)
 
mr_hyde's Avatar
 
Join Date: Jul 2009
Location: Seattle
Posts: 799
Total Cats: 25
Default

There are two bolts that hold the slave on. Your top bolt is missing. It worked a bit for a few shifts and then the whole slave spun out of position on the lower bolt. Put the piston back in the cylinder and replace the missing bolt. Check for leaking or fatigued hydraulic lines that might have been bent or damaged.
mr_hyde is offline   Reply With Quote
Old 08-04-2012, 09:28 AM   #15
Elite Member
iTrader: (21)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,689
Total Cats: 560
Default

Yes, but the boot is torn. Imminent failure, even if you bolt it back in correctly.

Bad boot will let crap into the bore, where it can score the bore or seal and it will fail. Probably at the worst possible time. Best to rebuild or replace and have a spare.
rleete is offline   Reply With Quote
Old 08-04-2012, 09:49 AM   #16
Junior Member
iTrader: (1)
 
Join Date: Nov 2011
Location: Independence Mo
Posts: 109
Total Cats: 1
Default

I would still replace it, but he might need to re-thread the bolts if he doesn't want it to happen again.

From your picture it looks like the top bolt is gone.

how to here -> Miata Clutch Slave Cylinder Replacement
buy here -> Miata MX5 clutch slave cylinder
Or local if you need it asap.

Aluminum is super easy to strip. ( learned from experience )
But from the looks of that slave cylinder ( old ) it looks like the bolt could have just loosened over time, if so buy another bolt ( match to the one left ) and it should be fairly straight forward.
Attached Thumbnails
what the eff clutch, help!-slave1.jpg  
AkaZero is offline   Reply With Quote
Old 08-04-2012, 07:49 PM   #17
Elite Member
iTrader: (2)
 
Mobius's Avatar
 
Join Date: May 2008
Location: Portland, Oregon
Posts: 3,178
Total Cats: 267
Default

What an excellent opportunity to install a SS clutch line !
Mobius is offline   Reply With Quote
Old 08-07-2012, 01:05 PM   #18
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Oct 2011
Posts: 207
Total Cats: -14
Default

Quote:
Originally Posted by AkaZero View Post
I would still replace it, but he might need to re-thread the bolts if he doesn't want it to happen again.

From your picture it looks like the top bolt is gone.

how to here -> Miata Clutch Slave Cylinder Replacement
buy here -> Miata MX5 clutch slave cylinder
Or local if you need it asap.

Aluminum is super easy to strip. ( learned from experience )
But from the looks of that slave cylinder ( old ) it looks like the bolt could have just loosened over time, if so buy another bolt ( match to the one left ) and it should be fairly straight forward.
Say I need to buy a new bolt. Does that mean that it is 1.5mm thread and the 2.3 would be length of the bolt?

you guys are so very helpful, I appreciate it

Last edited by TheDriver; 08-07-2012 at 01:20 PM.
TheDriver is offline   Reply With Quote
Old 08-07-2012, 01:25 PM   #19
Elite Member
iTrader: (21)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,689
Total Cats: 560
Default

No. Those are torque values.

A 1.5mm bolt size would be tiny.
rleete is offline   Reply With Quote
Old 08-07-2012, 01:29 PM   #20
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Oct 2011
Posts: 207
Total Cats: -14
Default

Quote:
Originally Posted by rleete View Post
No. Those are torque values.

A 1.5mm bolt size would be tiny.
aren't the threads on NA miatas lug nuts 1.5mm?
TheDriver is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
ACT race clutch and AASCO 7lb. aluminum flywheel graexodus Miata parts for sale/trade 5 10-26-2015 02:48 PM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 11:59 PM
Are my coils failing? viriiguy General Miata Chat 5 09-28-2015 08:39 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:34 PM.