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New clutch set up, idle is very low, any help?

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Old Jun 21, 2012 | 02:46 PM
  #1  
meshuggah's Avatar
meshuggah
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From: Calgary, AB Canada
Default New clutch set up, idle is very low, any help?

Hi all. Just had a Centerforce Dual Friction clutch http://www.centerforce.com/products/...--and---maxima

And an ACT StreetLite lightweight Flywheel http://www.frsport.com/ACT-600215-XA...DE_p_9575.html installed to replace my dead OEM clutch.

Since the install (which was done at the dealership) I've noticed the idle is very low, slightly under 1000rpm and the pedal is very soft. It shifts much faster and performs well other wise but I am concerned about these 2 changes I've noticed.

Is there any adjustment that can be done for the low idle rpms? Any help or feedback is greatly appreciated!
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Old Jun 21, 2012 | 03:21 PM
  #2  
nismoracingsx's Avatar
nismoracingsx
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From: Savannah, GA
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From the Factory Service Manual:

1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed for about
1 minute.
3. Check idle speed.
A/T: 650 ± 50 rpm (in "P" or "N" position)
M/T: 650 ± 50 rpm (in "N" position)

If very low = less than 1k for you, what was your 'normal' idle? According to the FSM the idle is near 650, which is what my Z idles at.

The description for that clutch claims that it provides "smooth engagement and light pedal pressure".
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Old Jun 21, 2012 | 03:37 PM
  #3  
meshuggah's Avatar
meshuggah
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From: Calgary, AB Canada
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Originally Posted by nismoracingsx
From the Factory Service Manual:

1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed for about
1 minute.
3. Check idle speed.
A/T: 650 ± 50 rpm (in "P" or "N" position)
M/T: 650 ± 50 rpm (in "N" position)

If very low = less than 1k for you, what was your 'normal' idle? According to the FSM the idle is near 650, which is what my Z idles at.

The description for that clutch claims that it provides "smooth engagement and light pedal pressure".

Thanks, I'll try that test out. My regular idle was usually around 1200 to 1300 rpm before the new clutch. Could just take some getting used to is all. It's a pretty significant change from the stock set up.
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Old Jun 21, 2012 | 04:31 PM
  #4  
redline06's Avatar
redline06
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From: Tampa, FL
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holy fawk !! 1200-1300rpm idle? , stock?
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Old Jul 24, 2012 | 04:00 PM
  #5  
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Michael0974
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From: West Covina, ca
Default Very similar problem

I just had a new Southbend clutch and Southbend single state (not sure what its called exaclty, its not double like the stock) flywheel installed. When I start the car, it revs up and then dies. It will do this repeadedly until I actually have to give it a little gas to keep it going. After that it will idle fine (around 650). Once going, when I press in the clutch (when coming to a stop), the rpms drop to about 300 (almost dies) then comes back up to 650~.

The mechanic who installed the clutch hooked up the z to the computer and said he had the computer "re-learn" the idle but it is still doing this. Any ideas?

04 350z roadster.
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Old Jul 25, 2012 | 07:32 AM
  #6  
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binder
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From: terre haute, IN; STL, MO
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your idle was not normal before. Something was wrong like an intake air leak. That will make a car idle high.

650 is normal idle. So maybe the leak was fixed or whatever problem you had before was fixed and now it sounds to be normal.
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