Very Weak Clutch?

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ShouldaHadaV8
Posts: 365
Joined: Sat Oct 10, 2009 7:00 pm
Car: 92 hatchback 240sx, j30 diff, TIEN tie-rods
Location: N. FLA

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I replaced my oem clutch ,flywheel, and slave cylinder. I've tried bleeding the system a few times with no luck about five times for 2 hours, I've purchased more fluid and im thinking about bleeding AGAIN, but im probably just going to buy the nismo braided clutch line for $100.
Anyway my clutch has almost no pressure and the pedal goes to the floor every time I get in it. Ive tried bleeding, but it just doesnt have any recoil, if i pump it I can put it in gear but it losses pressure
any ideas?????


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asoomal
Posts: 2374
Joined: Tue Feb 26, 2008 4:45 pm
Car: 2001 Subaru Impreza L 5MT (Daily)
1992 Nissan 240SX SE 5MT w/HICAS (Being restored)
Location: Canada

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Did you remove the damper?

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ShouldaHadaV8
Posts: 365
Joined: Sat Oct 10, 2009 7:00 pm
Car: 92 hatchback 240sx, j30 diff, TIEN tie-rods
Location: N. FLA

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I didn't remove anything but maybe the previous owners have, What is the damper? are you refering to the bleeding boxes on the metal lines?

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S13_RB25
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Joined: Thu Jan 14, 2010 5:20 am
Car: A 240 but no RB yet!
Location: Burlington, NJ

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Get under the car and see if there is a square box by SC. The MC line goes into this and it runs towards the back of the car and then back into the SC. But you want to make it so is runs MC to SC. You can find in the FSM CL section of it....

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asoomal
Posts: 2374
Joined: Tue Feb 26, 2008 4:45 pm
Car: 2001 Subaru Impreza L 5MT (Daily)
1992 Nissan 240SX SE 5MT w/HICAS (Being restored)
Location: Canada

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On a factory setup, there are two bleeding points in the clutch system. Remove the box.

Run a 52" line from the master to the slave, Enjuku Racing has got some.

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ShouldaHadaV8
Posts: 365
Joined: Sat Oct 10, 2009 7:00 pm
Car: 92 hatchback 240sx, j30 diff, TIEN tie-rods
Location: N. FLA

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yeah I planned on buying the nismo kit, but I bled the box near the slave ,and the one point on the slave cylinder plenty of times with no luck so i was wondering if it could be anything besides air in the line.

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ShouldaHadaV8
Posts: 365
Joined: Sat Oct 10, 2009 7:00 pm
Car: 92 hatchback 240sx, j30 diff, TIEN tie-rods
Location: N. FLA

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So I ended taking a good look at the damper box and noticed that I could just connect the two 10mm lines. The line from the MC to the damper box can be taken off the box and routed to the other line which was at the back of the box, that line connects to the rubber hose for the SC.
What I did was just disconnect both 10mm lines and removed the damper box and then connect the two lines using a brake line union, I belive it was a 3/8 Union, but i bought three sizes and forgot which one it was.... sorry. but they were only $3.00 each, compared to the $100 nismo kit + shipping.
Image
I stole this pic from someone on Zilvia who did the same thing. the damper box was in between these lines.


Now my clutch pedal feels amazing, and it only takes a few minutes to bleed. This is a must because I replaced my clutch and flywheel, the damper didn't allow enough pressure to work the new parts properly.


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