Nissan 370Z Forum  

Scraping sound when not scraping

It looks like his Hotchkis bushings were the culprit. Here is his response when I asked him if they fixed his problem. Originally Posted by Tigger Nope. Gotta grease those

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Brakes & Suspension


Like Tree9Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 11-11-2014, 11:39 AM   #31 (permalink)
A True Z Fanatic
 
JARblue's Avatar
 
Join Date: Mar 2011
Location: Austin, TX
Age: 43
Posts: 36,450
Drives: 11 Z34, 98 E36 M3
Rep Power: 2684440
JARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond repute
Default

It looks like his Hotchkis bushings were the culprit. Here is his response when I asked him if they fixed his problem.

Quote:
Originally Posted by Tigger View Post
Nope. Gotta grease those things every three months or sooner if it rains a lot. So yeah. Grease, grease, grease, grease, grease. I even switched to mobil1 synthetic (seems to keep the nasty grind at bay even if it dries out) and it appears to last a little longer. Doesn't help that the bushings tore into the paint on the sways. I mean, there's some pretty nice sized gouges in the surface so it allows water to penetrate more easily.

I had sways on my last car as well. Never during the 43,000 miles I drove it with the sways on did I have an issue like this. I greased them once and that was that.

Factory bushings on the Z are smooth on the inside and never need greased. This **** with these sways is really strange. Not sure why they cut grooves in them. It only traps dirt and water. They should have gone with a smooth, no-lubrication-required design. Oh well. Lesson learned.
You can see the grooves in the middle photo in Rusty's post. Here is a another pic:

__________________

2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed |
JARblue is offline   Reply With Quote
Old 11-11-2014, 12:05 PM   #32 (permalink)
A True Z Fanatic
 
Join Date: Mar 2013
Location: NM
Posts: 8,063
Drives: Awedeeeeee
Rep Power: 602
Tigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond repute
Default

Sorry guys for leaving you hanging as I rarely check into these threads anymore. If ever. JAR was kinda enough to uodate this for me.

And to re-assure everyone, if you have those older style bushings you may want to contact Hotchkis for the updated parts so when you wind up needing to tear them off again for greasing you can just swap in the new, smooth sided bushings. Should work a little better. Jwick also recommends wrapping Teflon tape around the bar first and then greasing. If using teflon, you may not need grease. I can't say for certain either way. Certain greases/oils may contain polyalfaolefin which will cause Teflon to disintegrate. Just use your best judgement and common sense. Just try not to shred your bushings. Mine are showing signs of needing replacement but they'lol been on there nearly 37,000 miles.

Hope this helps out!
Tigger is offline   Reply With Quote
Old 11-17-2014, 11:01 AM   #33 (permalink)
Administrator
 
Trips's Avatar
 
Join Date: May 2009
Location: Disneyland, Ca
Posts: 8,730
Drives: 🔰
Rep Power: 10
Trips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond repute
Default

I wanted to share my experience with the same noise scraping noise albeit mine was more pronounced as the temps would drops and what I found this weekend will make some sense.

I've had this on and off annoying scraping noise for a couple of years :| I could never figure it out blaming tire scrape on the fender liners or the plastic rivets that hold the wheel liner were not holding it in place thinking they moved to cause the scrape sound.

I lifted the front end up and decided to take a close look at the swaybar bushings to see that maybe just maybe it would be from there

I took them out and found them dry to the bone and thought hum thats what more than likely causing the scraping sound since the plastic bushing was making direct contact or metal in my case to swaybar.

I removed and cleaned the bushing and braket and apllied plenty of grease to the inside of the bushings and reinstalled.

It was 55º this morning coming to work and where I would normally hear the scraping sound along the drive there was NO MORE scraping sounds coming from the front end.

I highly recommend everyone who has encountered this particular sound to just make sure that the front swaybar is greased even after a year of use.

Thats all for now carry on
Tigger likes this.
__________________


http://www.the370z.com/payments.php

Last edited by Trips; 11-17-2014 at 11:08 AM.
Trips is offline   Reply With Quote
Old 11-17-2014, 11:24 AM   #34 (permalink)
Administrator
 
Trips's Avatar
 
Join Date: May 2009
Location: Disneyland, Ca
Posts: 8,730
Drives: 🔰
Rep Power: 10
Trips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond repute
Default

Thanks Tigger for the thread.

This is what made me finally look at the bushings since Im the Hotchkis also
Tigger likes this.
__________________


http://www.the370z.com/payments.php
Trips is offline   Reply With Quote
Old 11-17-2014, 11:50 AM   #35 (permalink)
A True Z Fanatic
 
Jordo!'s Avatar
 
Join Date: May 2010
Location: nirvana
Posts: 6,394
Drives: 2023 NATM
Rep Power: 418
Jordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond repute
Default

Check the the brakes -- I seem to recall that there is a thin metal dust/heat shield (?) that can scrape the caliper as the wheel rotates and needs to be adjusted like a mm or so to avoid light contact.

Another possibility is the sliding pins for the calipers

I think there were TSB's for the G37 on these issue, and I had the first one on my Z.

Finally, there could be a small pebble trapped in the caliper that is scraping.
Trips and Tigger like this.
__________________
Enjoy it. Destroy it.

Last edited by Jordo!; 11-17-2014 at 12:01 PM.
Jordo! is offline   Reply With Quote
Old 11-20-2014, 08:26 AM   #36 (permalink)
A True Z Fanatic
 
Join Date: Mar 2013
Location: NM
Posts: 8,063
Drives: Awedeeeeee
Rep Power: 602
Tigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond repute
Default

Quote:
Originally Posted by Jordo! View Post
Check the the brakes -- I seem to recall that there is a thin metal dust/heat shield (?) that can scrape the caliper as the wheel rotates and needs to be adjusted like a mm or so to avoid light contact.

Another possibility is the sliding pins for the calipers

I think there were TSB's for the G37 on these issue, and I had the first one on my Z.

Finally, there could be a small pebble trapped in the caliper that is scraping.
I've gotten that several times with a damn pebble. A short, quick acceleration usually takes care of that.

Oh. And if you hit a deep puddle of water at speed, there is a chance you could bend the shield underr the driveshaft causing it to make contact and it is more pronounced when engine braking. You'll have to bend the shield back. Happened to me last spring. But, that's actually scraping I suppose. Not sure how many people have ever dealt with that. I might be the only one. But it sounds a lot like a rotor/wheel issue. Kinda scary.
Jordo! likes this.
Tigger is offline   Reply With Quote
Old 11-21-2014, 10:18 PM   #37 (permalink)
Enthusiast Member
 
Join Date: Apr 2014
Location: Utah
Posts: 380
Drives: 2014 370z M.B. 7AT
Rep Power: 3366
markesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond reputemarkesc has a reputation beyond repute
Default

I have the squishy sound coming from the front drivers side strut in the mornings going over the last speed bump leaving my place. The approach is with the wheel going straight perfectly, and only the front drivers side tire goes over it (the right side has enough room to avoid the speed bump).

Now strangely: If both tires go over the speed bump at the same time, no noise.

It doesn't really bother me, but I'm thinking it's going to get worse/sign of things to come.

Is there a stupid donut thing above spring/perch that needs replacing? I'd like to avoid going to the aftermarket nightmare of trying to find new springs or blowing thousands on KW's...

Other than that, this car has been a HUGE step up from the POS tin can on wheels chassis 07 wrx I once had. Maybe it lacks a bit in the all out excitement factor and low end tq, but it's been a stress free/fun car to own for the daily commute...and, there are not ten million Z's in the Portland area...I use my "sick days" now when it snows... so no AWD needed.


Quote:
Originally Posted by Trips View Post
I wanted to share my experience with the same noise scraping noise albeit mine was more pronounced as the temps would drops and what I found this weekend will make some sense.

I've had this on and off annoying scraping noise for a couple of years :| I could never figure it out blaming tire scrape on the fender liners or the plastic rivets that hold the wheel liner were not holding it in place thinking they moved to cause the scrape sound.

I lifted the front end up and decided to take a close look at the swaybar bushings to see that maybe just maybe it would be from there

I took them out and found them dry to the bone and thought hum thats what more than likely causing the scraping sound since the plastic bushing was making direct contact or metal in my case to swaybar.

I removed and cleaned the bushing and braket and apllied plenty of grease to the inside of the bushings and reinstalled.

It was 55º this morning coming to work and where I would normally hear the scraping sound along the drive there was NO MORE scraping sounds coming from the front end.

I highly recommend everyone who has encountered this particular sound to just make sure that the front swaybar is greased even after a year of use.

Thats all for now carry on
markesc is offline   Reply With Quote
Old 12-02-2014, 10:33 PM   #38 (permalink)
Enthusiast Member
 
tnav's Avatar
 
Join Date: Sep 2013
Location: SoCal
Posts: 316
Drives: 2012 370z Silver 6sp
Rep Power: 12
tnav is on a distinguished road
Default

I take it the issue was fixed and the noise completely went away?
tnav is offline   Reply With Quote
Old 12-03-2014, 12:19 AM   #39 (permalink)
Administrator
 
Trips's Avatar
 
Join Date: May 2009
Location: Disneyland, Ca
Posts: 8,730
Drives: 🔰
Rep Power: 10
Trips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond repute
Default

Yes,

It does seems that the Hotchkis bushing need to be greased periodically

So they don't go dry, and develop the plastic scraping sounds from the front end.
__________________


http://www.the370z.com/payments.php
Trips is offline   Reply With Quote
Old 12-30-2014, 02:46 AM   #40 (permalink)
A True Z Fanatic
 
axmea?'s Avatar
 
Join Date: Apr 2012
Location: SoCal
Posts: 6,235
Drives: WELL ZED PW 6MT
Rep Power: 53241
axmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond reputeaxmea? has a reputation beyond repute
Default

Thanks for this post Tigger and everyone's response. This pretty much confirmed my suspicion about the need to grease up the bushings. I have a similar issue and is more pronounced when cold as Trips mentioned. Strange how I hear it in the morning and never on my way home.
__________________

>MyZ's Album< NISMO Convert/ECUTEK/Takeda CAI/F.I. HFC NR CB Carbon/F.I. 34 Row Oil Cooler/4.08 Final Drive /Powertrix+Swifts/Hotchkis/SPL/Whiteline/TWM/Zoom Engineering/EVO-R/AeroJacket Vented CF Fenders + CF Spoiler/Avant Garde-WORK/NST/Morimoto Halo/STi Clear Lenses/Carbon Signal Automotive/RJM Performance/ZSpeed Clutch Flywheel CSC delete
axmea? is offline   Reply With Quote
Old 01-03-2015, 11:59 PM   #41 (permalink)
A True Z Fanatic
 
Join Date: Mar 2013
Location: NM
Posts: 8,063
Drives: Awedeeeeee
Rep Power: 602
Tigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond reputeTigger has a reputation beyond repute
Default

Quote:
Originally Posted by axmea? View Post
Thanks for this post Tigger and everyone's response. This pretty much confirmed my suspicion about the need to grease up the bushings. I have a similar issue and is more pronounced when cold as Trips mentioned. Strange how I hear it in the morning and never on my way home.
Well I'm glad this has at least helped out a few!
Tigger is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lowered on Swifts. Still scraping! future370zzz Brakes & Suspension 25 07-23-2012 10:51 PM
front lip scraping AdobePhil Exterior & Interior 24 02-16-2012 03:42 PM
Is it possible I'm scraping my Tranny? TheGreatOne Engine & Drivetrain 15 11-30-2011 10:31 PM
what am i scraping? darthanakin23 Nissan 370Z General Discussions 14 08-05-2010 06:10 PM
Maybe that scraping sound isnt the chin spoiler. Dembflyr Exterior & Interior 16 04-21-2010 09:34 PM


All times are GMT -5. The time now is 04:42 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2