S14 Rear end clunk when cornering or under heavy throttle - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jspec_S14 · 04-04-2011, 02:56 PM

It seems ever since i have upgraded to larger and larger wheels my rear end has been expereincing some clunking under heavy throttle or under right corners.

It has an aftermarket locking LSD (still dont know what kind, came from Japan land in the pumpkin)

Currently running 18x10.5's out back.

It persists throughout the corner and until i point the car streight, if i hit full boost after a corner it will also happen.

if you can visualize the noise it sounds like:

slug-lug-lug-lug-lug (proportional to speed)

Thanks guys

Last time the Dif saw new fluid was last year

Sileighty_85 · 04-04-2011, 03:51 PM

sounds like tires are rubbing in the fender wells

nujabe · 04-04-2011, 03:55 PM

or off balance im running 17x9.5 and when i turn a corner i womp womp womp after a while i gess the tires are not waring evenly. thats just my 2 cents. also a sign is when you make turns at a low speed you should here it or driving slow.

Addicted2Kouki · 04-04-2011, 04:00 PM

Check tires.
Check clearance.
Check anywhere your suspension bolts up.
Check bushings, especially your rear subframe bushings.
If you havent already taken care of those.

If those are all good, check the shimming and tolerances on your lsd.

jspec_S14 · 04-05-2011, 06:44 PM

Quote:

Originally Posted by Addicted2Kouki

Check tires.
Check clearance.
Check anywhere your suspension bolts up.
Check bushings, especially your rear subframe bushings.
If you havent already taken care of those.

If those are all good, check the shimming and tolerances on your lsd.

Clearance is fine, i had this issue with my 18x10 +20's and with my 18x10.5 +15's, ive rolled the fenders to add.

It sounds almost like it is coming from the rear left, or maybe just center (diff). This is a right hand drive so i hear everything from my left..

the wheels+tires are not hitting anything

could it be an axle? im thinking of taking off the diff cover and checking her out, maybe dropping it too.

snafupossum · 04-05-2011, 06:50 PM

Kaaz lsds can make that noise when they don't have the proper fluid in them

jspec_S14 · 04-06-2011, 03:06 PM

Quote:

Originally Posted by snafupossum

Kaaz lsds can make that noise when they don't have the proper fluid in them

Thats what i was thinking, considering the larger tires. new stress is being put on the LSD So its not binding properly.

ill take a look and see whats inside!

reaxion · 04-06-2011, 04:17 PM

+1 on the rear subframe bushings, that will drive you batty

jspec_S14 · 04-08-2011, 10:20 AM

Quote:

Originally Posted by reaxion

+1 on the rear subframe bushings, that will drive you batty

I would agree if the noise was dependant on how the suspension moves, but it doesnt have anything to do with that. You would get the same frequency of "lug lug lug lug's" if you were to tie a rubber strap to the axel and have it whip around in the wheel well.

whomiked · 08-06-2011, 01:40 PM

Quote:

Originally Posted by jspec_S14

I would agree if the noise was dependant on how the suspension moves, but it doesnt have anything to do with that. You would get the same frequency of "lug lug lug lug's" if you were to tie a rubber strap to the axel and have it whip around in the wheel well.

Did you ever figure this issue out? I'm having the same problem in my s14, clunking from rear under hard right turns.

kumokun · 03-31-2012, 02:35 AM

Im having the same problem, sorry for reviving a old thread but its bothering the living hell out of me. Ive have done all the checks the onlything left is to pull the axles out.

SuperBlackS14 · 03-31-2012, 03:42 PM

I'm siding with the other guys who said Subframe bushing, but also throwing out Differential Bushings. Sersiously check them. If you haven't already.

04-04-2011, 02:56 PM	#1
jspec_S14 Join Date: Oct 2010 Location: Canada Posts: 36 Trader Rating: (0) Feedback Score: 0 reviews	S14 Rear end clunk when cornering or under heavy throttle It seems ever since i have upgraded to larger and larger wheels my rear end has been expereincing some clunking under heavy throttle or under right corners. It has an aftermarket locking LSD (still dont know what kind, came from Japan land in the pumpkin) Currently running 18x10.5's out back. It persists throughout the corner and until i point the car streight, if i hit full boost after a corner it will also happen. if you can visualize the noise it sounds like: slug-lug-lug-lug-lug (proportional to speed) Thanks guys Last time the Dif saw new fluid was last year

04-04-2011, 03:51 PM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	sounds like tires are rubbing in the fender wells __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

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04-04-2011, 03:55 PM	#3
nujabe Zilvia Addict Join Date: Oct 2010 Location: BAY AREA CA Posts: 890 Trader Rating: (9) Feedback Score: 9 reviews	or off balance im running 17x9.5 and when i turn a corner i womp womp womp after a while i gess the tires are not waring evenly. thats just my 2 cents. also a sign is when you make turns at a low speed you should here it or driving slow.

04-05-2011, 06:50 PM	#6
snafupossum Zilvia Member Join Date: Nov 2008 Location: houston, tx Age: 31 Posts: 205 Trader Rating: (1) Feedback Score: 1 reviews	Kaaz lsds can make that noise when they don't have the proper fluid in them

04-06-2011, 04:17 PM	#8
reaxion Zilvia Junkie Join Date: Jan 2006 Location: midwest / Chi-city Age: 38 Posts: 376 Trader Rating: (0) Feedback Score: 0 reviews	+1 on the rear subframe bushings, that will drive you batty

03-31-2012, 02:35 AM	#11
kumokun Zilvia Member Join Date: Dec 2011 Location: CA Posts: 258 Trader Rating: (7) Feedback Score: 7 reviews	Im having the same problem, sorry for reviving a old thread but its bothering the living hell out of me. Ive have done all the checks the onlything left is to pull the axles out.

03-31-2012, 03:42 PM	#12
SuperBlackS14 Zilvia Junkie Join Date: Sep 2011 Location: Albany, NY Age: 30 Posts: 381 Trader Rating: (4) Feedback Score: 4 reviews	I'm siding with the other guys who said Subframe bushing, but also throwing out Differential Bushings. Sersiously check them. If you haven't already.