Another CSC failure?

370Z Purist · 07-10-2012, 06:53 PM

Quote:

Originally Posted by OKC Z

Well I had no issues with the stock clutch to begin with. But I was planning to boost the Z which is no longer in the plans. But I purchased the kit thinking it would be an upgrade, well that's when the problems started. At first when the clutch was installed it was like a sponge and hard to put in 1st and second. Well it couldn't be adjusted. After 2 days i noticed a noise that wouldn't go away. Its like a grinding noise. So i went and took it back to shop and they said it was normal and to change the trans fluid. I did and nothing changed. It became harder to put in gear now. I was told that the lines or master had air in it. Well took it to nissan and got it flushed for $115. Now there is no more air and still makes the grinding noise and its really hard to put in first gear. I must try 2-3 times at every stop/light. And god forbid i try to rev above 4k and try to shift into 2nd cause it will not go in no matter how fast or slow one throws the gear. So dont get in my opinion. Other might of had a great experience.

That sounds like a bad install. The grinding noise could be just typical Z chatter, since our Z is such a noisy vehicle. The fact that you can't get into gears sounds like either an issue with actuation, either the master or slave, or possibly trans damage (the least likely, and also the worst scenario). Since you mention it being worse at high RPMs, maybe it could be something to do with the synchros. I'm not an expert, no, but I can't say the problem sits only with the clutch. It sounds like a whole other bucket of worms to me.

Quote:

Originally Posted by Mt Tam I am

I do not know if this post should be here or not but here goes.

I just changed my brake fluid to DOT 5.1 and had some left over and changed my clutch fluid. It was black and looked like it had well over 13,000 miles on it.

The stock brake fluid hasn't been changed and is clear, slightly yellow. The clutch fluid is rather nasty in comparison, and the fluid clearly has some dark particulate swirling around in it. Assuming the same fluid is used, the clutch fluid sure doesn't stay clean much at all, and I'm only at 12.5K miles.

Unfortunately, I could pump the clutch all day and see no difference. I've sat in the car for 20 minutes, doing 2 second down/up cycles with the clutch, and it doesn't stiffen up at all. Bleed valve is closed, fluid topped off (to the max line). I don't understand.

Before attempting to flush, the clutch worked intermittently. Now it doesn't work at all!

Power bleeding is probably the best way to confirm that fluid isn't my issue. Because I have royally screwed up the bleed. Pedal is complete mush, and I basically just hear the fluid swirling around.

I did find this, though, from more research, and I wanted to see if anyone has tried this, or would recommend trying it. As a general idea it makes a lot of sense, and it helps push out any air in the system, which naturally just looks like it would trap air (and apparently has). I will try this before getting a power bleeder, then before a swap. Still no clear sign of failure, due to the lack of leaking fluid.

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