Sticky: (Official) 370Z Clutch Pressure (CSC) Failures

Zbrah · 06-25-2015, 11:43 PM

Quote:

Originally Posted by schellingr

Does the Master Cylinder needs to be Zspeed as well or just OEM?

There isn't an aftermarket master cylinder availlable that I'm aware of. People are replacing the oem master with a new one while the tranny is out.

jwick · 06-26-2015, 08:19 AM

Quote:

Originally Posted by Zbrah

There isn't an aftermarket master cylinder availlable that I'm aware of. People are replacing the oem master with a new one while the tranny is out.

This

If you don't replace the CMC at the time of the clutch swap, you'll be back to do it later. The seals in the OEM one aren't the greatest so make sure not to use a power bleeder.

KoolKarmaJoe · 06-26-2015, 09:04 AM

Quote:

Originally Posted by jwick

This

If you don't replace the CMC at the time of the clutch swap, you'll be back to do it later. The seals in the OEM one aren't the greatest so make sure not to use a power bleeder.

Wow! "...The seals in OEM CMC aren't the greatest either". What was Nissan thinking when they designed this car? The Z is starting to remind me of my first car in high school, a OPEL GT. It too had crap parts! I'm beginning to regret trading in my old Suburu WRX STI for this "all looks & no reliability car".

nizmo19 · 06-25-2015, 10:32 PM

Ok looking for some opinions. Recently my clutch has been making a grinding noise just before engaging fully in 1st and 2nd gear. I took it to a shop and they said sounds like throw-out bearing. I believe we have the CSC instead of a traditional throw out bearing. Has anyone seen this symptom of the CSC failing or could it be something else? Thanks in advance.

DIGItonium · 06-26-2015, 09:33 AM

My master cylinder might be showing some signs. It's making a loud squeaky noise whenever I depress the pedal. That CMC is another weak point. I had it replaced twice. The original was replaced when it failed after installing the new clutch and CSC at 22k miles. The second one was replaced for the sake of safety when I had clutch issues.

eastwest2300 · 06-26-2015, 12:21 PM

Its shocking that some of these cars with a little over 1000 miles are having these problems.. its crazy. And to these folks replacing a bad CSC with another OEM CSC is just silly.. just my opinion.

KoolKarmaJoe · 06-26-2015, 12:24 PM

Quote:

Originally Posted by eastwest2300

Its shocking that some of these cars with a little over 1000 miles are having these problems.. its crazy. And to these folks replacing a bad CSC with another OEM CSC is just silly.. just my opinion.

I agree.

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MagmaRed370z · 06-26-2015, 12:36 PM

so basically to avoid the problem:

1) Replace the OEM CSC with the Zspeed CSC.
2) Replace the existing CMC with a new OEM CMC.

Replace those two and it should be fine or does something else needs to be replaced?

KoolKarmaJoe · 06-26-2015, 12:40 PM

Quote:

Originally Posted by schellingr

so basically to avoid the problem:

1) Replace the OEM CSC with the Zspeed CSC.
2) Replace the existing CMC with a new OEM CMC.

Replace those two and it should be fine or does something else needs to be replaced?

How many miles on car? Hard/clutch dumping/track driving? With a OEM CLUTCH/FLYWHEEL? Are you considering to add Forced Induction later? If so you may wish to upgrade FLYWHEEL & CLUTCH kit.

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MagmaRed370z · 06-26-2015, 12:45 PM

Quote:

Originally Posted by KoolKarmaJoe

How many miles on car? Hard/clutch dumping/track driving? With a OEM CLUTCH/FLYWHEEL? Are you considering to add Forced Induction later? If so you may wish to upgrade FLYWHEEL & CLUTCH kit.

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11,000 on the Z currently. Spirited Driving sometimes. No mods and probably no mods in the future.

KoolKarmaJoe · 06-26-2015, 12:55 PM

Quote:

Originally Posted by schellingr

11,000 on the Z currently. Spirited Driving sometimes. No mods and probably no mods in the future.

Your Z will be "golden" with just the HD CSC, & new OEM CMC. Go with Redline dot4 or the more expensive GTR DOT 4 fluid. Both excellent.. Plus you will have piece of mind. Remember to check CLUTCH fluid reservoir every 2nd or 3rd gas fill-up; top off if necessary; all fluids eventually discolor; but I plan on making a CLUTCH fluid exchange once a year considering stop & go city driving I do.

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eastwest2300 · 06-26-2015, 01:22 PM

Quote:

Originally Posted by schellingr

11,000 on the Z currently. Spirited Driving sometimes. No mods and probably no mods in the future.

then a new clutch and flywheel isnt necessary.

nizmo19 · 06-26-2015, 01:14 PM

Why not buy the z1 CSC elimination kit instead?

eastwest2300 · 06-26-2015, 01:22 PM

Quote:

Originally Posted by nizmo19

Why not buy the z1 CSC elimination kit instead?

Its a good unit, but it has to adjusted from time to time.

nizmo19 · 06-26-2015, 01:25 PM

Quote:

Originally Posted by eastwest2300

Its a good unit, but it has to adjusted from time to time.

What does that adjustment entail?

06-26-2015, 09:33 AM	#5 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 44	My master cylinder might be showing some signs. It's making a loud squeaky noise whenever I depress the pedal. That CMC is another weak point. I had it replaced twice. The original was replaced when it failed after installing the new clutch and CSC at 22k miles. The second one was replaced for the sake of safety when I had clutch issues. __________________

06-26-2015, 12:21 PM	#6 (permalink)
eastwest2300 A True Z Fanatic Join Date: May 2010 Location: South FL Posts: 91,035 Drives: '16QX70/'21 Supra3.0 Rep Power: 2684553	Its shocking that some of these cars with a little over 1000 miles are having these problems.. its crazy. And to these folks replacing a bad CSC with another OEM CSC is just silly.. just my opinion. __________________ Infiniti QX70 & Toyota Supra 3.0 Premium

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06-25-2015, 10:32 PM	#4 (permalink)
nizmo19 Base Member Join Date: Feb 2015 Location: Mass Posts: 12 Drives: 09 PW Nismo Rep Power: 12	Ok looking for some opinions. Recently my clutch has been making a grinding noise just before engaging fully in 1st and 2nd gear. I took it to a shop and they said sounds like throw-out bearing. I believe we have the CSC instead of a traditional throw out bearing. Has anyone seen this symptom of the CSC failing or could it be something else? Thanks in advance.

06-26-2015, 12:36 PM	#8 (permalink)
MagmaRed370z A True Z Fanatic Join Date: Jun 2014 Location: USA Posts: 1,468 Drives: 14' 370z Sport Magma Rep Power: 14	so basically to avoid the problem: 1) Replace the OEM CSC with the Zspeed CSC. 2) Replace the existing CMC with a new OEM CMC. Replace those two and it should be fine or does something else needs to be replaced?

06-26-2015, 01:14 PM	#13 (permalink)
nizmo19 Base Member Join Date: Feb 2015 Location: Mass Posts: 12 Drives: 09 PW Nismo Rep Power: 12	Why not buy the z1 CSC elimination kit instead?