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Clunking sound from rear - question

Posted: July 15th, 2007, 2:44 am
by nightfire
I've got a clunking sound over sharp bumps coming from the rear passenger side. I just changed my springs, struts, and top plates and it didn't go away.

I'm wondering if I made a mistake in the installation.

The retainer washer at the top - is it supposed to be dished inward (so that the lip presses against the top of the bushing) or outward? I can't tell from the manual diagram.

Is there supposed to be anything under the top plate, or does the strut just go right through the hole in the bushing?

I noticed also that the threads on the strut don't go far enough and the nut doesn't seat tightly against the retainer (in my case). I added another 1/2" washer under the nut and it's tight, but I still have the clunking.

Is there anything else that could be causing it? The wheel is tight and there's no play at all.

Posted: July 15th, 2007, 8:57 pm
by Whisper
Well, there might be play, perhaps you're just not strong enough to noticeably reproduce it. Donno what else. My whole suspension is kinda clunky, and I've just learned to live with it.

Posted: July 16th, 2007, 3:24 pm
by nightfire
Whisper wrote:Well, there might be play, perhaps you're just not strong enough to noticeably reproduce it. Donno what else. My whole suspension is kinda clunky, and I've just learned to live with it.
Well I'm 99% there's just not enough pressure on the bushing. I'm gonna try a nylon washer between the lockwasher and the retainer to see if that quiets it down.

The rest is perfect.. just that last spot.

Posted: July 16th, 2007, 4:18 pm
by Whisper
Aight. Report back with the results when you do.

Posted: July 16th, 2007, 4:57 pm
by Mooneggs
maybe take some pics too? my rear suspension makes a ton of noise... but it always has...

when you lower an mx-3 are you supposed to keep the bumpstops or remove them?

Posted: July 17th, 2007, 12:28 am
by Whisper
I think it depends on the springs. They usually come with instructions on what to do with bumpstops. Typically you have to trim them, not remove them.

Re: Clunking sound from rear - question

Posted: December 14th, 2008, 1:34 pm
by MazdaMan85
I'd check the rear sway bar endlink. Mine was broke and vibrating

Re: Clunking sound from rear - question

Posted: December 14th, 2008, 6:49 pm
by Daninski
I have a clunking in the front end, drives me nuts. I was told to check the sway bar links with the car on the ground (checked mine on jacks). The mechanic said they can clunk too if there's play. Oh ya, welcome back.

Re: Clunking sound from rear - question

Posted: December 14th, 2008, 6:59 pm
by Ryan
My rear suspension was making clunking noises.... I could never reproduce it though, it seemed totally random. It wasn't cornering, it wasn't sharp or ...dull? bumps that made it do it.... wasn't speed or acceleration related...

It turns out it was my trailing arms. The bushings were so fubar that they were.. well baisically missing. replaced the whole unit (Only the bushing would work) and its quiet as ever... minus my hatch :)

Re: Clunking sound from rear - question

Posted: December 14th, 2008, 8:22 pm
by projectzemx3
stabilizer link is probably busted.

Re: Clunking sound from rear - question

Posted: December 17th, 2008, 4:32 pm
by nightfire
Ryan wrote:My rear suspension was making clunking noises.... I could never reproduce it though, it seemed totally random. It wasn't cornering, it wasn't sharp or ...dull? bumps that made it do it.... wasn't speed or acceleration related...

It turns out it was my trailing arms. The bushings were so fubar that they were.. well baisically missing. replaced the whole unit (Only the bushing would work) and its quiet as ever... minus my hatch :)
Hah. That's exactly what's happening. :) Thanks... I'll check it out!