Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Nissan 370Z Warranty / Scheduled Maintenance / Servicing / Repairs (http://www.the370z.com/nissan-370z-warranty-scheduled-maintenance-servicing-repairs/)
-   -   Drivetrain CLUNK during Low speed Acceleration is this normal? (youtube video) (http://www.the370z.com/nissan-370z-warranty-scheduled-maintenance-servicing-repairs/29768-drivetrain-clunk-during-low-speed-acceleration-normal-youtube-video.html)

Gunzero 03-21-2011 11:35 PM
Quote:
Originally Posted by Grunj (Post 1001102)
So that's normal and nothing to be worried about? I'm definitely having the above issue when I disengage the clutch from 1st to 2nd and less so from 2nd to 3rd. You can hear that it kind of has an echo to it. Just got the car this week ('09 with 5000 miles). Admittedly, I'm still getting used to the clutch and especially how the RPMs like to stay high and come down slow when you push in the clutch and are off the gas. And as you can see/hear, letting off the gas doesn't alleviate the problem. YouTube - 370Z clutch THUMP Thump thump.
That's not normal.
What RPM are you shifting @?

Boost_lee 03-21-2011 11:45 PM
Im getting a clunking noise also, its usually in first gr or reverse. And it happens when completely off the clutch. I cant pinpoint where the sound is coming from, but I checked the front end and exhaust, both seem fine. I'm going to check the rear axle nuts next week, hoping its something easy...

Grunj 03-22-2011 12:45 PM
Gunzero,

I'm shifting right around 3-4000 RPM. Thanks!

Gunzero 03-22-2011 01:27 PM
Quote:
Originally Posted by Grunj (Post 1002287)
Gunzero,

I'm shifting right around 3-4000 RPM. Thanks!
It shouldn't sound that way then.. I don't know what the problem is. Perhaps, a bad clutch. You're welcome :)

I'll try to post a video of the way my clutch sounds. TTYL

Gunzero 03-22-2011 01:27 PM
Quote:
Originally Posted by Boost_lee (Post 1001186)
Im getting a clunking noise also, its usually in first gr or reverse. And it happens when completely off the clutch. I cant pinpoint where the sound is coming from, but I checked the front end and exhaust, both seem fine. I'm going to check the rear axle nuts next week, hoping its something easy...
What does it sound like? :)

Unclemeaty 03-22-2011 02:21 PM
I second; everyone should check your rear axle nut on the driver's side. 2009 370z did not use a locking sleeve over the axle nut like 2010 and 2011 model Zs, and this can cause the axle nut to loosen up about 2-4 turns before being stopped by the cotter pin. Threadlock, a 1.25" deep socket, and a proper torque wrench should do the trick.

thezmonster 03-22-2011 06:55 PM
Quote:
Originally Posted by Unclemeaty (Post 1002604)
I second; everyone should check your rear axle nut on the driver's side. 2009 370z did not use a locking sleeve over the axle nut like 2010 and 2011 model Zs, and this can cause the axle nut to loosen up about 2-4 turns before being stopped by the cotter pin. Threadlock, a 1.25" deep socket, and a proper torque wrench should do the trick.
Mine was loose less than 6 weeks ago, had to tight it up and I double checked the pass side and it tight

OKC Z 03-23-2011 06:33 AM
Wow! You all got me worried. Because mine makes noise going and coming out of first. I dont know much about this kind of stuff. Which bolt are we talking about in the left rear axle? I dont have the smallest idea. Can someone do me a huge favor and explain to me more or less which one? Does anyone have a pic of it or the general area where it is? Thanks a bunch in advance. I dont have warranty due to mods and I cant really afford for anything to break on this thing. Thanks.

Prosport Gauges 03-24-2011 08:58 AM
Z is doing the same thing. Ill be putting it on the lift and taking some pics for everyone

Grunj 03-24-2011 11:20 AM
Quote:
Originally Posted by Ryan@prosportGauges (Post 1007576)
Z is doing the same thing. Ill be putting it on the lift and taking some pics for everyone
The same thing as mine (clunk when disengaging clutch?) or as GonGo's?

thezmonster 03-24-2011 12:01 PM
Size 32mm deep socket

aling lukring 03-25-2011 03:28 PM
any pics or videos yet? ive had this for almost two years now and dealers say its normal but i never had this clunking noise in other manual. glad to know theres a solution for this.

Boost_lee 03-25-2011 09:26 PM
Anyone have the torque spec for the rear axle nuts from the service manual?

ChrisSlicks 03-26-2011 07:11 AM
Quote:
Originally Posted by Boost_lee (Post 1012185)
Anyone have the torque spec for the rear axle nuts from the service manual?
The service manual says 133 ft/lbs (180 Nm).

Boost_lee 03-26-2011 08:20 PM
Thanks


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