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Master cylinder leak.

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Old Oct 12, 2010 | 06:18 PM
  #1  
H23_Lude4_2_0's Avatar
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From: Charleston SC
Default Master cylinder leak.

Ok i replaced my master cylinder about a month ago, there is a leak but i cannot locate it, anyone know what i should start replacing to get this problem fixed? ( i have a 96 h23 and i am a super noob ) =]
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Old Oct 12, 2010 | 06:53 PM
  #2  
RomPirate's Avatar
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Default Re: Master cylinder leak.

Find the leak.

Replace what caused it. Dont start replacing things that aren't broken...
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Old Oct 12, 2010 | 06:58 PM
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H23_Lude4_2_0's Avatar
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Default Re: Master cylinder leak.

its leaking slow, i dont know how to determine where it is because i cant physically see where its leaking. what is a maneuver to find the leak?
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Old Oct 13, 2010 | 07:22 AM
  #4  
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From: Daytona Beach, FL / Charlotte, NC
Default Re: Master cylinder leak.

Originally Posted by H23_Lude4_2_0
its leaking slow, i dont know how to determine where it is because i cant physically see where its leaking. what is a maneuver to find the leak?

Looking back and forth in a "searching" motion... lol.

seriously tho.. can't really help you find the leak from a computer you have to just poke around. How do you know its leaking? I bet its leaking on your foot isnt it...

There are only a couple places it could be, i would start with checking to see if the hoses on the cylinder are tight and are not leaking. take some paper towels, fold them up and place under the Master cylinder and drive around for a bit... if its wet then.. there ya go.
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Old Oct 13, 2010 | 09:54 AM
  #5  
H23_Lude4_2_0's Avatar
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Default Re: Master cylinder leak.

yea i realize theres only so much you can tell me, i just cant afford to bring it to a shop right now. but i will try that and see how it goes, thank yaz
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Old Oct 14, 2010 | 08:25 PM
  #6  
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Default Re: Master cylinder leak.

switch around your logic, you need to find out what needs replacing then replace it, not just starting parts blindly until it is fixed. If you give us more details about the leak we could diagnose the problem for you.
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Old Oct 14, 2010 | 08:33 PM
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Default Re: Master cylinder leak.

When you press down on your brake pedel does it slowly go to the floor?
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Old Oct 14, 2010 | 08:52 PM
  #8  
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Default Re: Master cylinder leak.

brake master cylinder or clutch master cylinder?
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Old Oct 14, 2010 | 10:26 PM
  #9  
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From: DFW TX
Default Re: Master cylinder leak.

Usually I look at the top of the pedal inside of the car or around the cylinder seals under the hood. It should still be wet or eaten away some paint depending on where it is leaking from.
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Old Oct 14, 2010 | 10:39 PM
  #10  
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Default Re: Master cylinder leak.

Odds are that a bleeder valve is still slightly open. But you would find that your pedal would be getting spungy.
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Old Oct 15, 2010 | 04:14 AM
  #11  
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From: Overland Park, Ks, USA
Default Re: Master cylinder leak.

check the hose that goes to the Master cylinder. The clamp on there sometimes will leak, even if you think it's tight. I'd replace the clamp. Check the slave cylinder bleeder valve, make sure it's closed, (but not too tight)
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Old Oct 15, 2010 | 12:24 PM
  #12  
H23_Lude4_2_0's Avatar
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Default Re: Master cylinder leak.

Originally Posted by JUNlemonPrelude
brake master cylinder or clutch master cylinder?
It is the clutch master cylinder, i have tried tightening the bleeder valve and that has been unsuccessful. i put new hoses when i changed the cylinder so maybe it is the clamps.

thanks everyone
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Old Oct 15, 2010 | 01:36 PM
  #13  
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Default Re: Master cylinder leak.

More than likely the hose from the reservoir or the seal for the push rod. If its the push rod then you just get on the floor on the driver side and look up at where the rod comes through the firewall and connects to the pedal, it will be wet. The line is simple, it'll just be wet more than likely on the master cylinder side.
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Old Oct 19, 2010 | 07:23 PM
  #14  
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Default Re: Master cylinder leak.

have to locate wheres its from look under the pedal and feel your master cylinder is it all oily or dripping oil?
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