2006 350z 6sp 67k miles

Just put a new clutch and flywheel in it, after about 350-400 miles of breaking it in. I raced a g35 last night, and when I hit really high rpms and pushed in the clutch in any gear id say probably 5k+ rpms it made a really loud whiney/grinding noise I dont really know how to describe it... Is this normal? It seems to be any gear in high rpms except maybe 1st...

I have z1 clutch/flywheel combo, full face mild street performance.

 

Throwout bearing?

 

If it is the throw out bearing, he should have the noise at low RPM’s. He says the noise happens at high RPM’s; but then again he does not offer any information at low RPM’s.

So… OP… Does the same noise happen at low RPM’s?

 

That's a symptom of a bad TOB.

 

I replaced the throwout bearing

low rpms like under 2k all i hear is is flywheel chatter kinda sounds like a diesel, i assumed that was normal


so tell me this, could a throw out bearing cause pedal play? Like i have to pull the pedal up about 1 inch before its all the way up, I replaced master cyl, slave cyl, and most of the hardline with a ss clutch line. and bled the fluck out of it and it still has play...


the only thing i couldnt replace was the pilot bushing... I couldnt get it out.

 

BUMP

 

well i guess its off to the transmission shop then :/ fml.

 

Maybe the tob is partially disconnected from the fork? I couldn't be too sure without looking at it myself, but good luck with the shop.

 

I don't want to take it to someone else but hell I don't know anymore, my step dad has known the guy for 40 years, so he's gonna work with me... but i dont have the patience to drop the trans again lol

and the chatter is getting louder... its starting to worry me...

 

So i took it to the transmission shop and just talked to the guy about it. He said odds are the slave cylinder i bought from rock auto is junk (13$ lol) so I ordered one from oreillys for 43$ hopefully it will take away from the noise.

Also I realized that if i continue pushing the pedal all the way to the floor that noise goes away it only does it when its partially disengaged, fully disengaged it doesn't do it, I just never noticed it cause i shift too fast haha!

Hopefully the new slave cylinder will be stronger and can handle the harder pushing and fix my pedal, and fix the damn burning clutch smell i get when shifting harder I'm sick of smelling it lol.

I'm praying to the car gods!

 

FYI, not pushing the pedal all the way down is a BAD habit.

 

Yea I know, lol but when I'm racing or driving it hard i cant wait to push the clutch to the floor haha :P

 

That might be your problem. haha ( Couldn't resist the "haha.")

 

Same issues.
This is what I have gone through. So I had really bad grinding in every gear I went to the see what it was. First throw out bearing was messed up and I also replace the flywheel since i had warranty i said mine as well.
Got it back a week passed by and only 5th gear was grinding im talking about loud grinding so I went back to check it out the syncro was supposdely worn out. I replaced it but I also had to replace a shaft because stupid Nissan updated the parts. I drove it for a week no noise.

Now just today I started getting grinds on 2nd gear 3rd gear and 4th gear.
Yes im upset and I dont know if its the syncros or what but I dont know what to do.

 

What year is your car?

What version transmission do you have?

--Spike

 

Its a 2005 Nissan 350z (enthusiast) Im assuming the transmssion is the original version because I had to update the shaft even though my shaft was fine just so the new syncros would fit I had to update.

Transmission fluid maybe?

 

Your transmission will have a version number. You need this to determine if replacement is a solution, but you are now past replacement under the drivetrain warranty.

The early versions (installed 2003-2005) had problems including synchromesh issues and "notchy"/difficult shifting.

Nissan replaced many 350z transmissions under the 60K drivetrain warranty. Nissan did not have to do this. They did it because they are a very good company.

--Spike

 

Hey Spike,

How do I find the version number? I have the part number 32010-CD100A
Im not sure if that is what you mean.

 

Mine doesn't grind any gears.... but if I sit at a stop and pump it a few times it will come all the way up for a few shifts, then get stuck... and when it comes back up it isnt smooth it like jumps up the last inch and makes a clunking noise. I ordered a better slave cylinder. I'm gonna try to manually bleed it again tonight and see what happens... When I race now its not smelling as much or as bad, raced a gto 3 times last night and didnt smell it but 1 time, so I'm thinking maybe just maybe I didn't get all the air out :/