clunk noise coming from the back of my 240sx - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s14nis · 10-23-2011, 10:27 AM

Im having this clunking noise every time i shift the gears. and also when im coming to a complete stop... i hear clunk and that's it.

I jacked up the car from the back and i had my buddy put it in gear and just keep shifting... well i looked underneath the car while he was shifting the gears and i noticed the rear subframe is really kinda shaking and vibrating. i looked at the subframe bushing and i think they looked worn out... ( i said i think because i have zero experience with those bushings.)

So where should i start? should replace them? if so, what brand? or should i do a quick/easy fix by putting washers on the subframe bushings?

sr20sean · 10-23-2011, 10:39 AM

http://zilvia.net/f/search.php

there were several of these already...

s14nis · 10-23-2011, 12:48 PM

i already searched the forum but the issues that were disscused here were noise coming from different parts... my clunk noise is coming from the "Subframe bushing"

DJDANGER24 · 10-23-2011, 04:43 PM

Quote:

Originally Posted by s14nis

i already searched the forum but the issues that were disscused here were noise coming from different parts... my clunk noise is coming from the "Subframe bushing"

If the noise is coming from the bushing, then its your bushings. Its not rocket science buddy

s14nis · 10-23-2011, 05:39 PM

Quote:

Originally Posted by DJDANGER24

If the noise is coming from the bushing, then its your bushings. Its not rocket science buddy

Yes im 95% positive it's the subframe bushings... but it dont think my post entirely... my questions is, what are good techniques to replace them.. any good brands to use for those bushings.., that's what i wanted to know.

jr_ss · 11-06-2011, 05:25 PM

Quote:

Originally Posted by s14nis

Yes im 95% positive it's the subframe bushings... but it dont think my post entirely... my questions is, what are good techniques to replace them.. any good brands to use for those bushings.., that's what i wanted to know.

The next part of this question has been answered a thousand and one times as well. Yes, there are even DIY's on the forums to replace them yourself. Nismo, SPL, are just a few suppliers, but there are literally dozens of companys that offer the same product, to an extent, to replace these. Do some research guy, before you get flamed all to hell...

nismolvr · 10-23-2011, 04:37 PM

Quote:

Originally Posted by s14nis

Im having this clunking noise every time i shift the gears. and also when im coming to a complete stop... i hear clunk and that's it.

I jacked up the car from the back and i had my buddy put it in gear and just keep shifting... well i looked underneath the car while he was shifting the gears and i noticed the rear subframe is really kinda shaking and vibrating. i looked at the subframe bushing and i think they looked worn out... ( i said i think because i have zero experience with those bushings.)

So where should i start? should replace them? if so, what brand? or should i do a quick/easy fix by putting washers on the subframe bushings?

Its the rear subframe bushings Ninor, lol

nismoracingsx · 11-11-2011, 12:35 PM

get replacement bushings if you just want to maintain. or just press in some solid bushings and call it done...
guessing from your posts that you're not too mechanically inclined. Take to shop, have them replace the bushings and call it a day.

Kingtal0n · 11-12-2011, 11:20 AM

The only other thing I might suspect is play in the differential. During a shift the ring/pinion may change orientations of which is transfering torque to which, and if there is any significant play between these orientations, the driver may notice a slight clunk.

The S chassis is known for subframe bushing failure, though. I just wanted to add some info. A common thing is to install sub-frame spacers, they are fairly cheap, but rigid of course.

mr.man.performance · 11-19-2011, 07:08 PM

Spacers will only temporarily fix the problem though. Personally, I'd go with billet aluminum solid bushings if you Never want to deal with it again. I got Powered by Max subframe risers in mine and I like them a lot. The thing is, they're kindly a bitch to install. I suggest the saws-all method. It's covered pretty in depth throughout the forums but the cliffs notes version is this, cut around the bushing with the saw so the metal insert pulls out. Cut the metal bushing sleeve to release tension. (be careful not to cut through your subframe though...). I made another cut through the sleeve about half an inch from the initial cut and beat out that pice with a hammer and chisel. Then you can just pull out the whole sleeve and bang in the aluminum riser with a rubber mallet. Have fun! ...and search harder...

mr.man.performance · 11-19-2011, 07:14 PM

Oh, and PBM suggests using some sort of epoxy when you put in the new bushings. This may just be to hold the riser in place while you re align and bolt up the sub frame. At any rate, I used 2 part flexible 1.5 ton epoxy so it doesn't crack under stress.

mr.man.performance · 11-19-2011, 07:17 PM

...and don't worry about the vibrations you'll hear when you put them in...unless its coming from a specific side.

s14nis · 03-01-2012, 11:50 AM

Hey guy i just wanted to give u a quick update and wanted to thank everyone for their help. I ended up buying some collars from ebay for $50. very easy to install.. problem solved no noise no problem!! its been 4 months and everything is great!!!

10-23-2011, 10:27 AM	#1
s14nis Join Date: Jul 2011 Location: USA Posts: 12 Trader Rating: (1) Feedback Score: 1 reviews	clunk noise coming from the back of my 240sx Im having this clunking noise every time i shift the gears. and also when im coming to a complete stop... i hear clunk and that's it. I jacked up the car from the back and i had my buddy put it in gear and just keep shifting... well i looked underneath the car while he was shifting the gears and i noticed the rear subframe is really kinda shaking and vibrating. i looked at the subframe bushing and i think they looked worn out... ( i said i think because i have zero experience with those bushings.) So where should i start? should replace them? if so, what brand? or should i do a quick/easy fix by putting washers on the subframe bushings?

11-11-2011, 12:35 PM	#8
nismoracingsx Zilvia Addict Join Date: Sep 2007 Location: Alachua, FL Age: 38 Posts: 969 Trader Rating: (32) Feedback Score: 32 reviews	get replacement bushings if you just want to maintain. or just press in some solid bushings and call it done... guessing from your posts that you're not too mechanically inclined. Take to shop, have them replace the bushings and call it a day. __________________

03-01-2012, 11:50 AM	#13
s14nis Join Date: Jul 2011 Location: USA Posts: 12 Trader Rating: (1) Feedback Score: 1 reviews	Problem solved Hey guy i just wanted to give u a quick update and wanted to thank everyone for their help. I ended up buying some collars from ebay for $50. very easy to install.. problem solved no noise no problem!! its been 4 months and everything is great!!!

10-23-2011, 12:48 PM	#3
s14nis Join Date: Jul 2011 Location: USA Posts: 12 Trader Rating: (1) Feedback Score: 1 reviews	i already searched the forum but the issues that were disscused here were noise coming from different parts... my clunk noise is coming from the "Subframe bushing"

11-12-2011, 11:20 AM	#9
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 42 Posts: 4,829 Trader Rating: (17) Feedback Score: 17 reviews	The only other thing I might suspect is play in the differential. During a shift the ring/pinion may change orientations of which is transfering torque to which, and if there is any significant play between these orientations, the driver may notice a slight clunk. The S chassis is known for subframe bushing failure, though. I just wanted to add some info. A common thing is to install sub-frame spacers, they are fairly cheap, but rigid of course.

11-19-2011, 07:08 PM	#10
mr.man.performance Leaky Injector Join Date: Jan 2011 Location: O-Side, CA Age: 39 Posts: 60 Trader Rating: (0) Feedback Score: 0 reviews	Spacers will only temporarily fix the problem though. Personally, I'd go with billet aluminum solid bushings if you Never want to deal with it again. I got Powered by Max subframe risers in mine and I like them a lot. The thing is, they're kindly a bitch to install. I suggest the saws-all method. It's covered pretty in depth throughout the forums but the cliffs notes version is this, cut around the bushing with the saw so the metal insert pulls out. Cut the metal bushing sleeve to release tension. (be careful not to cut through your subframe though...). I made another cut through the sleeve about half an inch from the initial cut and beat out that pice with a hammer and chisel. Then you can just pull out the whole sleeve and bang in the aluminum riser with a rubber mallet. Have fun! ...and search harder...

11-19-2011, 07:14 PM	#11
mr.man.performance Leaky Injector Join Date: Jan 2011 Location: O-Side, CA Age: 39 Posts: 60 Trader Rating: (0) Feedback Score: 0 reviews	Oh, and PBM suggests using some sort of epoxy when you put in the new bushings. This may just be to hold the riser in place while you re align and bolt up the sub frame. At any rate, I used 2 part flexible 1.5 ton epoxy so it doesn't crack under stress.

11-19-2011, 07:17 PM	#12
mr.man.performance Leaky Injector Join Date: Jan 2011 Location: O-Side, CA Age: 39 Posts: 60 Trader Rating: (0) Feedback Score: 0 reviews	...and don't worry about the vibrations you'll hear when you put them in...unless its coming from a specific side.