S2000 Under The Hood S2000 Technical and Mechanical discussions.

Differential clunking....

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Old Jun 12, 2011 | 01:05 PM
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Default Differential clunking....

The LSD in my diff works great... but when i do low speed turns, for example pulling into a parking spot with the clutch pushed in,
a clunking noise comes from the rear end, im pretty sure its the differential because i have no idea what else it could be.

has anyone had this problem before?

its not a click, its a clunk lol

Thanks for your help,
Nathan
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Old Jun 12, 2011 | 01:51 PM
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I have a similar sound when i engage the clutch pedal. It sounds like a deep clunk, I took it to Honda when i first got the car and they said the clutch master cylinder was leaking, so replaced that but the sound did not go away.

I believe I've also read on the forums of other people with similar problem/sound, their solution was re-torquing the axle nut. It seems you can do this by simply removing the center cap, un-staking and removing the axle nut, oiling (not greasing, not sure why) the threads and contact surface of nut, then re-torquing to 220ft/lbs.... use a 36mm axle nut socket.

I also need to do this myself, hopefully it work.
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Old Jun 12, 2011 | 05:48 PM
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On the axle nut retorque, the shop manual says to put motor oil on the mating face of the nut, not on the threads.
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Old Jun 12, 2011 | 07:09 PM
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i have this too... dunno what could it be. everything is working good tho.
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Old Jun 13, 2011 | 07:17 AM
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Ive already done the whole re-torque the axle nut fix, I had that "clicking" noise, but this is a clunk while the clutch pedal is pushed in and while the car is making a sharp turn. If I am cruising down the road and push the clutch in, it doesnt make a noise, but when i do low speed turns it makes it.
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Old Jun 13, 2011 | 08:06 PM
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maybe its something thats loose?? hmmm ill have to check my underside when i have it on the lift
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Old Jun 14, 2011 | 04:59 AM
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Nothing is loose. You have a sticky LSD unit. When making low speed parking lot type turns with the clutch pedal in and coasting, you will get a consistent thunk-thunk-thunk.

It happens, and it wont hurt anything.
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Old Jun 14, 2011 | 05:01 AM
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Originally Posted by wordsofvenom
I took it to Honda when i first got the car and they said the clutch master cylinder was leaking, so replaced that but the sound did not go away
More proof that dealers are 100% incompetent.
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Old Jun 14, 2011 | 06:41 AM
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Originally Posted by Billman250
Nothing is loose. You have a sticky LSD unit. When making low speed parking lot type turns with the clutch pedal in and coasting, you will get a consistent thunk-thunk-thunk.

It happens, and it wont hurt anything.

ahhhh! no wonder. cause i got a new puddy mod diff from ben and it didnt have my old LSD and it didnt make that sound before. now i can relax
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Old Jun 14, 2011 | 08:36 AM
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Originally Posted by Billman250
Nothing is loose. You have a sticky LSD unit. When making low speed parking lot type turns with the clutch pedal in and coasting, you will get a consistent thunk-thunk-thunk.

It happens, and it wont hurt anything.

I changed the diff fluid today and found metal shavings on the drain bolt plug... should i go ahead and get a new diff or should i just keep using this one?
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