Yellowing CMC fluid

quickboat

Would I want to start changing out warranted parts so soon in the vehicles life? What good is a warrantee if I just replace all of the weak points with aftermarket upgrades? I guess if the stealership wont flush this and keep it going full warrantee period than I have a choice between high maintenance(changing CMC fluid every 1kmi or upgrading). Don't want to get stranded that for sure.

Juan@Fontana

I am fully aware of both of those kits, OS Giken is also currently developing a CSC delete kit too.

reason behind the Specialty Z getting my preference is because both the Flywheel is fully rebuild-able along with the clutch disk. so in the future when your clutch is done you don't have to make another 1200+ dollar expense replacing it. you can send your original units back to them for new friction plates, along with getting the pressure plate and disk for a refresh. The segmented design is also extremely useful for us who like to track or beat on our cars.

the CSC is made by Tilton which is a very reputable manufacture for racing CSC's for many super cars so it's made for abuse and can handle daily driving without any issues, keeps you from rigging any funny looking odd brackets and other stuff outside of the transmission and works well with all your other factory components. The RPS/SZ kit is just a clean solution that handles every flaw in the OEM system without any compromise. I'm in the middle of

I have really high hopes for the OS Giken CSC delete kit, I hope it is clean and functional like their Evo 9 and GTR push type conversion kit.

quickboat

I guess I'll nurse the factory one until it is out of warrantee. Wont the 60k Gold extended warrantee cover it too?
Is DOT 4 475deg fluid a better choice than stock?

JARblue

Any links to details on the SZ kit you speak of and/or the development of the OSG kit?

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Juan@Fontana

Bob’s NISMO 370Z TT |

if you have any questions i can do my best to answer them, and for anyone looking into this options i can give you guys a deal on it

-Juan

JARblue

Unless you are within the 36K miles bumper-to-bumper warranty period, none of that stuff will be covered under warranty.

I drive my Z all over Texas (sometimes upwards of 900 miles in a single day). I don't want to get stranded, so I went ahead and replaced my CSC with the Z1 CSCEK recently at 51K miles. Nissan will not cover either the CSC or the MC under the 60K Powertrain warranty. The only way they will do it is if you are still under the bumper-to-bumper warranty or as a "good will service", which basically means you have a have spent a lot of money at the dealership and had all or most of your service done there.

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Fountainhead

Well I've examined a slightly used CSC ten ways from Sunday, and don't find anything significant but an ORing and a polished sleeve. Anything else is comparable to any other CSC I've seen other places. Sure, some have a metal body but all the metal in the world won't make a diff to that ORing and it's polished metal sleeve. If that ORing gets enough dirt in it it will leak/fail. I don't think plastic has anything to do with it failing unless you're crazy shifting at 7500, and everything gets so hot from the thrust bearing that the ORing deforms, or gets large bits of trash in its path.

My CSC is at 22K and it's a 2009 model.

JARblue

It had 51K miles on it, so maybe more than slightly used. I certainly never had any problems with it. My understanding was it cannot stand up repeated hard launches. Since I don't do that, I wasn't expecting any problems. However, driving to remote areas of Texas with no cell service, I didn't want to risk failure, however it might happen. I would be interested in how many failed CSCs were due to o-ring failure vs plastic failure.

Did you post up pics somewhere? Let me know when you do and where they are

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Fountainhead

I will probably post in Engine/Drivetrain this weekend. I've enjoyed it! It's all cleaned up and actually I saw no major wear, any scuffies or scratches to the ORing or the CSC body are due to my disassembly, getting the Circlip off and then getting the flared business end of the ORing back into the CSC barrel proved the most difficult.

40 to 332

I'd be interested in knowing whether anyone has experienced clutch problems due to the failure of the Z Speed Heavy Duty CSC. The HD CSC has been out for some time, and I gather that a number of folks have had it installed. I'd be especially interested in knowing whether anyone has experienced problems after swapping out the OEM CSC with the HD version, and who also installed a new CMC at the same time (as recommended by Joe at Z Speed). The information could be useful to the OP and others.