Thanks Thanks:  0
Likes Likes:  8
Dislikes Dislikes:  0
Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: Slave cylinder issues

  1. #1
    Original Gearhead Joe Morreale's Avatar
    Join Date
    Feb 2011
    Posts
    3,233
    Post Thanks / Like

    Slave cylinder issues

    While out a couple days ago my clutch slave started acting up. I ordered a couple Exedy ones for $12 each from Rock Auto. When I was taking off the stupid 949 braided line I realized that the fitting is an 11mm. Who the hell makes 11mm fittings?

    When I went to remove it, the nut was froze to the line. I had to spin the slave to both remove and install the new one. It was a real pita, especially in 95 degree weather. I counted, 1,000 pumps later, still no clutch, but it's pushing fluid with no bubbles. I notice a puddle forming not where the slave is. The damn 949 line is leaking. I got my 10mm flare wrench, to remove it from up top from the hard line but the nut promptly rounded off. This made me real happy.

    I ordered a 65" braided line from Goodwin Racing. It will go from the master to the slave. Have a new master to finish it off. Now I just have to wait for the clutch line. Why do simple things turn out to be so complicated?
    2001 SE British Racing Green - FM frame rails - FM solid sway bar - FM clutch- Mishimoto 53mm radiator - Bilsteins -
    Complete MK Turbo kit with intercooler - 3'' custom exhaust - Custom door panels - Custom "shorty" console

  2. #2
    ⚙ Gearhead 1K+
    Join Date
    Jun 2014
    Posts
    1,221
    Post Thanks / Like

    Re: Slave cylinder issues

    I had one of their lines do the something similar to me at the track in june and that 11mm threw me off. I don't even carry an 11mm. Ended up buying a line from one of the other miata guys so I could keep going but that sucked.

  3. #3
    🐵 Grease monkey 75+ clownheart's Avatar
    Drives
    Mazda MX-5
    Join Date
    Jan 2020
    Posts
    125
    Post Thanks / Like

    Re: Slave cylinder issues

    I don't remember where I bought that extended clutch line but it made it so much easier to bleed the system. The one I bought included the 2 copper washers too. Also, I keep an extra brand new slave cylinder in the trunk now, just in case.

  4. Likes Jaysz28 liked this post
  5. #4
    🛠 Tool wench 500+ kung fu jesus's Avatar
    Drives
    '99 Miata
    Join Date
    Jul 2014
    Posts
    633
    Post Thanks / Like

    Re: Slave cylinder issues

    FFR, nuts for compression or flared fittings do not need to be Hulk-Smash tight. They also do not need thread dope or tape.

  6. Likes Jaysz28 liked this post
  7. #5
    Original Gearhead Joe Morreale's Avatar
    Join Date
    Feb 2011
    Posts
    3,233
    Post Thanks / Like

    Re: Slave cylinder issues

    I had a period of time where I did overtighten things. The bottom nut siezed from corrosion, I guess. The top one from the OEM line might have been overtightened, but I don't think it should have rounded so easy with a quality flare wrench. Plus the 949 line developed a leak and I had it sheathed in a fuel line to prevent abrasion. I'll sheath the Goodwin Racing line as well. I just hope it doesn't take forever to get here. I've heard mixed reviews about their customer service. They were the only place I could find a line that went from the master to the slave.
    2001 SE British Racing Green - FM frame rails - FM solid sway bar - FM clutch- Mishimoto 53mm radiator - Bilsteins -
    Complete MK Turbo kit with intercooler - 3'' custom exhaust - Custom door panels - Custom "shorty" console

  8. Likes Jaysz28 liked this post
  9. #6
    🛠 Tool wench 500+ kung fu jesus's Avatar
    Drives
    '99 Miata
    Join Date
    Jul 2014
    Posts
    633
    Post Thanks / Like

    Re: Slave cylinder issues

    If you are having abrasion issues on the sheathing, isolator p-clips are your solution.

    Click image for larger version. 

Name:	1BED1C51-1026-4D71-9B99-A5404F200F2B.jpg 
Views:	17 
Size:	42.9 KB 
ID:	4351

  10. Likes Agent☣Orange, Jaysz28 liked this post
  11. #7
    🐵 Grease monkey 75+ clownheart's Avatar
    Drives
    Mazda MX-5
    Join Date
    Jan 2020
    Posts
    125
    Post Thanks / Like

    Re: Slave cylinder issues

    Quote Originally Posted by kung fu jesus View Post
    If you are having abrasion issues on the sheathing, isolator p-clips are your solution.

    Click image for larger version. 

Name:	1BED1C51-1026-4D71-9B99-A5404F200F2B.jpg 
Views:	17 
Size:	42.9 KB 
ID:	4351
    Mazda actually uses several of these throughout the wiring harness. They are so convenient.

  12. #8
    Individual-1 ☚☻☛ Agent☣Orange's Avatar
    Drives
    Lilí red Corvette
    Join Date
    Feb 2010
    Location
    Port Charlotte, FL
    Posts
    11,376
    Post Thanks / Like

    Re: Slave cylinder issues

    Happy coincidence but I was just at Lowes for some home-related electrical stuff and saw a bunch of these.

  13. #9
    Events Manager minuteman048's Avatar
    Drives
    1999 MX5
    Join Date
    Feb 2010
    Posts
    12,100
    Post Thanks / Like

    Re: Slave cylinder issues

    Quote Originally Posted by Jaysz28 View Post
    I had one of their lines do the something similar to me at the track in june and that 11mm threw me off. I don't even carry an 11mm. Ended up buying a line from one of the other miata guys so I could keep going but that sucked.
    Thats why I bought a set of these: Click image for larger version. 

Name:	20200628_124302.jpg 
Views:	14 
Size:	74.7 KB 
ID:	4355 to get one of these: Click image for larger version. 

Name:	20200628_124429.jpg 
Views:	13 
Size:	72.1 KB 
ID:	4356
    99 Emerald Mica, 01 Header, Ground Control Springs w/Bilstein HDs. Thompson CAI, High Flow cat w/Borla Exhaust, Fab9 COP's
    Good Judgement Comes From Experience
    Experience Comes From Bad Judgement

  14. Likes Agent☣Orange liked this post
  15. #10
    Original Gearhead Joe Morreale's Avatar
    Join Date
    Feb 2011
    Posts
    3,233
    Post Thanks / Like

    Re: Slave cylinder issues

    I did happen to have an 11mm open, which worked fine on the slave. What rounded, using a flare wrench, was the factory hard line that goes to the braided line. That's why I'm replacing the hard line. I'm not sure but I think an 11mm is close enough to a 7/16" to use.
    2001 SE British Racing Green - FM frame rails - FM solid sway bar - FM clutch- Mishimoto 53mm radiator - Bilsteins -
    Complete MK Turbo kit with intercooler - 3'' custom exhaust - Custom door panels - Custom "shorty" console

  16. Likes Agent☣Orange liked this post

Similar Threads

  1. Leaky Slave Cylinder
    By clownheart in forum Problems (general automotive)
    Replies: 32
    Last Post: 05-09-2020, 05:49 AM
  2. Clutch master cylinder?
    By Joe Morreale in forum Problems (general automotive)
    Replies: 11
    Last Post: 05-23-2017, 07:00 AM
  3. Replies: 1
    Last Post: 05-20-2015, 10:22 AM
  4. Master Brake Cylinder Brace
    By minuteman048 in forum Reviews
    Replies: 22
    Last Post: 03-07-2014, 06:26 PM
  5. Twin engine, 16-cylinder Miata
    By in forum Automotive-related chat
    Replies: 6
    Last Post: 02-22-2012, 11:56 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •