Clutch Slave Cylinder - Page 2 - Miata Forumz - Mazda Miata Chat Forums
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NA (1989-1997) NA Miata discussion within. The MX5's first generation, the NA, sold over 400,000 units from 1989 to 1997.

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Old 02-17-2012, 08:13 AM   #11
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Well I went down and bought the MityVac. I am still not able to get all the air out of the slave cylinder. Can some one post a picture of your set up for the MityVac that you use for bleeding the slave cylinder? This is getting frustrating, is there anything that I need to do to the vacuum lines prior to attaching it to the bleeder screw? I have bleed brakes and other clutch systems on other car I have owned and have never had this issue before. What makes the Miata any different. I do appreciate the help that everyone has given me. I am just at my wits end. At this time I might just want to take it to a mechanic and have them do it! I just want to drive the car!!! LOL
how are you testing if its bleed or not?

I know after a bleed, my pedal always "feels" less than adequate. Hell, ask Dntlift about bleeding his brakes at the track this weekend and thinking it had air in it.

Is the clutch operating normally, or does it not disengage on some occasions or are you making that conclusion based on sitting in the driveway with the car off?
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Old 02-17-2012, 08:36 AM   #12
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The way I am testing it is. I start the car and press the clutch in and put it in gear. With the clutch still pressed to the floor and the car parked I then wait to see if the clutch will engage by itself with out myself lifting up on the clutch pedal. It will act like all is good but after about a minute the clutch will slowly engage by itself.
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Old 02-17-2012, 08:51 AM   #13
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The way I am testing it is. I start the car and press the clutch in and put it in gear. With the clutch still pressed to the floor and the car parked I then wait to see if the clutch will engage by itself with out myself lifting up on the clutch pedal. It will act like all is good but after about a minute the clutch will slowly engage by itself.
sounds to me like you have a leak somewhere. there is a rubber line on the firewall that goes to the transmission, may have a crack in it.
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Old 02-17-2012, 11:03 AM   #14
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Do you have a diagram showing this?
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Old 02-17-2012, 11:09 AM   #15
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Its the line connected to the hardline loop that connects to slave cylinder.

Its pretty short really, but it will get hard and crack after some time.

I suggest you replace it with one of the longer clutch lines that delete the hard line that is coiled.

I think 949 sells them for $24 or so.
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Old 02-17-2012, 01:43 PM   #16
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Do you have a diagram showing this?
after i eat here ill snap a picture for you.
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Old 02-17-2012, 02:15 PM   #17
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ignore the ---- loads of grime, but thats what you are looking for behind the intake manifold. mine is not on so its much easier to see.

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Clutch Slave Cylinder-758af2df-1.jpg   Clutch Slave Cylinder-32681aac-1.jpg  
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Old 02-17-2012, 02:20 PM   #18
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anything else you would like a picture of, under the intake manifold?
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Old 02-17-2012, 02:46 PM   #19
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Seems easy enough to get to. I will have to look it over once I get home from work. Thank you for the pics!
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Old 02-17-2012, 04:31 PM   #20
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Seems easy enough to get to. I will have to look it over once I get home from work. Thank you for the pics!
the lower part might be a pain, but the upper should be alright
ps link to a full SS replacement
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