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slave cylinder hose leaks when slave is compressed

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Old Feb 2, 2009 | 02:44 PM
  #1  
h22lude317's Avatar
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Default slave cylinder hose leaks when slave is compressed

i just bought a new slave cylinder for my 4th gen lude
h22a motor and trans

everytime i hit the clutch fluid leaks out of the bolt that holds on the hose
i tried to tighten it more but it doesnt seem to go
i can still see threading also

anyone got any ideas?
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Old Feb 2, 2009 | 02:47 PM
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lude98SH's Avatar
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Default Re: slave cylinder hose leaks when slave is compressed

your talking about the flare nut that is at the end of the hardline going into the slave right ?
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Old Feb 2, 2009 | 03:45 PM
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Kronn 98SH's Avatar
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Default Re: slave cylinder hose leaks when slave is compressed

cross-threaded, maybe?
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Old Feb 2, 2009 | 04:11 PM
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Default Re: slave cylinder hose leaks when slave is compressed

there's 2 washers, one on each side of the thing i think you're talking about IIRC. and yeah if you still see threads but its tight.. cross-threaded aka you're F'd in the A.
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Old Feb 2, 2009 | 06:05 PM
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Default Re: slave cylinder hose leaks when slave is compressed

Originally Posted by lude98SH
your talking about the flare nut that is at the end of the hardline going into the slave right ?
yes
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Old Feb 2, 2009 | 06:07 PM
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Default Re: slave cylinder hose leaks when slave is compressed

Originally Posted by dagle
there's 2 washers, one on each side of the thing i think you're talking about IIRC. and yeah if you still see threads but its tight.. cross-threaded aka you're F'd in the A.
Whats cross-threaded mean?
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Old Feb 2, 2009 | 06:31 PM
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Kronn 98SH's Avatar
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Default Re: slave cylinder hose leaks when slave is compressed

oh boy....ummm...ok....There are 2 ways to put a bolt and nut together. The right way and the wrong way. The right way is when the the threads of the bolt meet up perfectly with the grooves inside the nut. The wrong way is when the threads do not meet up perfectly with the grooves but you keep turning it anyway. This causes the threads to spin outside of the grooves, which results in cross-threading. The threads cross the grooves instead of being in sync with them. Imagine a sliding door that is off the track. It doesn't move too well. And if you try to force it, you can fúck things up.

Well with bolts, screws, nuts, and other fasteners that use this method, once you've cross-threaded it, both pieces are ruined.
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Old Feb 2, 2009 | 06:42 PM
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Default Re: slave cylinder hose leaks when slave is compressed

Originally Posted by Kronn 98SH
oh boy....ummm...ok....There are 2 ways to put a bolt and nut together. The right way and the wrong way. The right way is when the the threads of the bolt meet up perfectly with the grooves inside the nut. The wrong way is when the threads do not meet up perfectly with the grooves but you keep turning it anyway. This causes the threads to spin outside of the grooves, which results in cross-threading. The threads cross the grooves instead of being in sync with them. Imagine a sliding door that is off the track. It doesn't move too well. And if you try to force it, you can fúck things up.

Well with bolts, screws, nuts, and other fasteners that use this method, once you've cross-threaded it, both pieces are ruined.
i dont think its that i cant even get the bolt to move it doesnt move freely
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Old Feb 2, 2009 | 06:47 PM
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Kronn 98SH's Avatar
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Default Re: slave cylinder hose leaks when slave is compressed

That's typically the case when cross-threaded. It doesn't move too well. Remember the door off the track analogy?
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Old Feb 2, 2009 | 07:00 PM
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Default Re: slave cylinder hose leaks when slave is compressed

Originally Posted by Kronn 98SH
That's typically the case when cross-threaded. It doesn't move too well. Remember the door off the track analogy?
yeah i just dont want it to be like that
what can i do?
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Old Feb 2, 2009 | 07:04 PM
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Kronn 98SH's Avatar
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Default Re: slave cylinder hose leaks when slave is compressed

Unscrew it. If it requires an abnormal amount of torque or the threads come out mashed, then it was cross-threaded. Replace both pieces and try again, making sure to not make the same mistake twice.
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Old Feb 2, 2009 | 08:25 PM
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Default Re: slave cylinder hose leaks when slave is compressed

when you tightened it on did you force it most of the way or did it go screw in nicely and just tighten up towards the end ?
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Old Feb 2, 2009 | 09:09 PM
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Default Re: slave cylinder hose leaks when slave is compressed

FAILURE IMMINENT.

I mean... :p you'll probably need a new bolt because I remember the slave being pretty heavy-duty. If not, you'll need a slave too
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Old Feb 3, 2009 | 07:44 AM
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Default Re: slave cylinder hose leaks when slave is compressed

Originally Posted by lude98SH
when you tightened it on did you force it most of the way or did it go screw in nicely and just tighten up towards the end ?
it went in smoothe then it got tight i used an extension to get it loose so im gonna try that to get it tight
i have permanent nerve damage so im not as strong as most so i dont know
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Old Feb 3, 2009 | 12:47 PM
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Default Re: slave cylinder hose leaks when slave is compressed

well it should start very easy, with ease once you line it up correctly.

Also you should be using a flare nut wrench to tighten these.
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Old Mar 3, 2009 | 03:09 AM
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Default Re: slave cylinder hose leaks when slave is compressed

could you take a of what the slave looks like when the clutch isn't depressed? i have swapped my master cylinder, slave cylinder and removed what i thought was a faulty damper on my prelude and still cannot get it to move any fluid
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