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

ZForce

This is interesting, not sure if it's related or not. Or it might be the cause of my recently failed clutch master cylinder. The clutch pedal (the whole pedal assembly) was replaced due to a blown seal of the compressor cartridge shock thingy. The one right behind the pedal. It was replaced soon after I had the new clutch master cylinder replaced. An annoying quacking noise from the pedal and it's not the normal air release noise from a good functioning part, this was a louder duck sound.

This may have failed first and then contributed to the failed clutch master cylinder. Making a note for any others with the same scenario.

TheGreatOne

Just an update as I don't think I came back to this thread since my post in September

Dealer replaced my MSC under warranty. Clutch is like butter now

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2008 E60 M5 - SOLD
2010 40th Anniversary 370Z - SOLD (and missing her)

ZForce

Replacement under warranty does not hurt the wallet at all.

Z-Girl 12

I should have bought an automatic! Crap!

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2012 Z-SOLD
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axmea?

Nah be happy with what you got. Get the upgraded slave cylinder and you'll be fine.

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djrelic

Has anyone here replaced the CSC with the heavy-duty one from Zspeed, and installed an OEM clutch pack ( pressure plate, clutch disk, and flywheel )?

I know the Zspeed CSC is really meant to push a heavy clutch configuration, but Im trying to figure out the most streetable clutch that is closest to OEM, but if I have to I may go oem. I just dont want that crappy CSC, I want the Zspeed one.

Joe@ZSpeed

The Stage 1 HD Southbend + South Bend steel flywheel + HD slave will drive better than OEM. When you get rid of the dual mass flywheel all the Lurching/Bouncing when you take off from a stop making you look like a rookie driver goes away

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djrelic

Great, thank you for the reply. I was looking at Southbend for a long time after my query from that day. I dont think I will ever go FI, I think I will stay NA since I do not track the car or drive it alot, so the Stage 1 HD would be fine.

Yes, I was looking at the black steel DXD south bend flywheel on your site.
ZSpeed Performance South Bend Clutch DXD Black Nissan Infiniti Flywheel

South Bend Clutch Stage 1 HD Clutch Kit (VQ37VHR) - $347
+ HD Slave KIT - $325.00
South Bend DXD Black Steel Flywheel - $450.00

Should I opt for the stage 2 daily clutch?


Another question, I would say for everyone on the forum...
Anyone ever install or drive a 370Z with this clutch/flywheel kit installed from Speciality Z?

https://specialtyz.com/shop/sz-flywh...4-and-v36.html

"...this time we incorporated the use of a Tilton racing slave"

Im just curious about the SZ one.. I did some searching on the forum here but nothing in regards to a full blown review on it.

Thanks everyone

Joe@ZSpeed

Stage 1 will work fine for you, Stage 2 has a slightly higher clamp load is all. If you really beat on the car I would step to the stage 2, Its only a few dollars more.

We can do the whole Stage 2 package for $1075 shipped ground until end of the year.

__________________
http://photos.zspeedperformance.com/...ardsize=468x60
Phone 937-506-7224
E-Mail Sales@Zspeed.com
www.ZSPEED.com

djrelic

Joe, last question here:

What about this:
ZSpeed Performance South Bend 370Z G37 TZR Clutch Kit

I already have the RJM Performance clutch pedal in my car, it feels better/firmer than the OE one. Would the TZR with the DXD Flywheel be overkill? I just like the idea that the clutch disk surface is Kevlar.

ZForce

Sounds like a lot of extra $$ out of pocket when most are still covered under warranty. True if you wanted a tougher bullet built one, then go for aftermarket, other than that its a lot of unnecessary dough...imo

And a clutch helper spring for about $20 will help with the rookie launches.

ZForce

Shoud be covered under warranty with only 25k miles.

jstevenson

Yeah, but I'm past 3 years... in service for 3 years and 8 months. Got the car in May 2009.

They called back yesterday, quoting me parts and labor of $2800 to replace the whole assembly (master cylinder, slave, lines, clutch cover). They also had contacted Nissan, who offered to pay up and brought the cost to me down to $820.

I took it, my mechanic figured it'd be 700-800, and I assume he wasn't going to replace the whole thing (plus re-towing etc).

Should hopefully have her back by tomorrow.

fuct

thats BS. those parts are much less wear and tear items than the clutch or centric slave cylinder.

for the master cylinder to go at 25k miles you either beat the sh1t outa it (which will be evident when they take the clutch off), or its defective. im leaning towards the latter...

jstevenson

I didn't beat the **** out of it at all (which they noticed the clutch was fine) --- the worst thing I did to the clutch was probably trying to get it the last 8 blocks home when the hydraulics failed (in terms of trying to restart the car with partial clutch / get into gear).

It was definitely defective, and I guess when the CSC goes it can take the rest... and/or they've been burned so many times replacing just one part that they think it's better to redo the whole thing while they are in there.

Anyways, car is back now and it's running fine. Shitty to blow 800 bucks on it, but better than the alternative, and as noted, I was out of warranty by years.