Notices
Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...
Sponsored by:
Sponsored by: 949 Racing

clutch hydraulic issues

Thread Tools
 
Search this Thread
 
Old Nov 26, 2012 | 10:27 AM
  #1  
falcon's Avatar
Thread Starter
Elite Member
iTrader: (13)
 
Joined: Dec 2009
Posts: 2,499
Total Cats: 16
Default clutch hydraulic issues

I've been having some problems with my clutch the last week. I noticed my clutch pedal needing to be pushed all the way down to get the transmission in gear but it would sill have some resistance going into gear and the clutch would let out millimeters from the floor. So i changed my slave thinking that was the issue. Re bled... adjusted the pushrod a bit and it felt great for one drive. Then all of a sudden lost all pedal pressure. So i assumed it was the master so i replaced it yesterday and re bled again, no air left at all and it us being a bitch again this morning on the way to work. Grinding going into gear, pushrod is adjusted all the way out to try to get the engagement off he floor. Think is, the majority of the engagement is where its supposed top be its just lightly dragging even with the pedal all the way down. I don't know how top get anymore throw out on it. Never had thus issue before.
Old Nov 26, 2012 | 02:06 PM
  #2  
baron340's Avatar
Senior Member
iTrader: (5)
 
Joined: Sep 2009
Posts: 577
Total Cats: 13
From: Lompoc, CA
Default

With a new master and slave cylinder, unless one has already failed from manufacturing issues, you still have air in the system.
Old Nov 26, 2012 | 04:53 PM
  #3  
hornetball's Avatar
Elite Member
iTrader: (4)
 
Joined: Mar 2008
Posts: 6,301
Total Cats: 697
From: Granbury, TX
Default

Flex hose in good shape?
Old Nov 26, 2012 | 05:52 PM
  #4  
rleete's Avatar
Elite Member
iTrader: (21)
 
Joined: Jun 2007
Posts: 6,794
Total Cats: 1,342
From: Rochester, NY
Default

Gotta bench bleed the master. You have air in the top of the line, up near the master.
Old Nov 29, 2012 | 12:45 AM
  #5  
ruthless013's Avatar
Newb
iTrader: (2)
 
Joined: Oct 2011
Posts: 33
Total Cats: 1
From: Long Island, NY
Default

did you replace the stock coiled-up hardline section? that is a notorious cause of air in the system. 949 and others offer braided hose to replace that section which all but eliminates the issue.

did you pull back the rubber boot on the slave? is it all wet in there? if so, bad replacement slave. btw they make a slave rebuid kit.

describe your bleeding process, many people dont do it right.
Old Nov 29, 2012 | 09:06 AM
  #6  
pdexta's Avatar
Elite Member
iTrader: (17)
 
Joined: Aug 2007
Posts: 2,954
Total Cats: 184
From: Knoxville, TN
Default

Originally Posted by hornetball
Flex hose in good shape?
As long as it's bled properly this is your problem. I've cracked that hose before and blamed it on the salve initially. A braided clucth line is cheap and really cleans up that mess of a stock line.

Trackspeed Engineering
Old Nov 29, 2012 | 10:29 AM
  #7  
ruthless013's Avatar
Newb
iTrader: (2)
 
Joined: Oct 2011
Posts: 33
Total Cats: 1
From: Long Island, NY
Default

i got the 949 race (long) version, it replaces the flex line and the curly q.
Old Dec 3, 2012 | 01:30 PM
  #8  
acorn's Avatar
Newb
iTrader: (2)
 
Joined: Sep 2012
Posts: 42
Total Cats: -4
Default

fill the clutch master all the way up, put a piece of hose on the slave bleeder and run it into a jug of brake fluid. crack the bleeder open and with you hand move the clutch pedal in and out, always monitoring the fluid level in the master cylinder. close the bleeder and see if the pedal feels better.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full_Tilt_Boogie
Build Threads
84
Apr 12, 2021 04:21 PM
graexodus
Miata parts for sale/trade
5
Oct 26, 2015 01:48 PM
interestedofold
Suspension, Brakes, Drivetrain
5
Sep 29, 2015 01:42 PM
viriiguy
General Miata Chat
5
Sep 28, 2015 07:39 PM




All times are GMT -4. The time now is 12:30 PM.