I have a 96 Miata with only 39K miles that I bought used a few months
back. I was at an autocross event the past weekend and heard a
clunking noise a few times during my earlier runs during hard
cornering. I didn't notice anything in my later runs, but I wasn't as
jerky in my later runs either. I've also heard this noise in another
autocross earlier in the month. What could be causing this noise? Is
something loose?
Thanks
Chuck - 19 Jun 2007 08:30 GMT
Check to see if the rear sway bar has shifted in it's bushings and is
hitting something.
> I have a 96 Miata with only 39K miles that I bought used a few months
> back. I was at an autocross event the past weekend and heard a
[quoted text clipped - 5 lines]
>
> Thanks
r0lliSl1fe - 19 Jun 2007 16:32 GMT
> I have a 96 Miata with only 39K miles that I bought used a few months
> back. I was at an autocross event the past weekend and heard a
[quoted text clipped - 5 lines]
>
> Thanks
Absolutely a sway bar problem (one hopes). One example in Mazda's
category...there was a run of Protege MP3s with messed up sways that
*always* clunked. I would get underneath and torque all that nonsense
down, and see if the noise goes away.
-r0ll
Leon van Dommelen - 20 Jun 2007 00:56 GMT
>I have a 96 Miata with only 39K miles that I bought used a few months
>back. I was at an autocross event the past weekend and heard a
[quoted text clipped - 3 lines]
>autocross earlier in the month. What could be causing this noise? Is
>something loose?
Also check whether the exhaust is hitting anything.
Leon

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G. Mack - 20 Jun 2007 17:46 GMT
Thanks for the suggestions. I'll check out the sway bar and exhaust
this weekend.
Chris D'Agnolo - 22 Jun 2007 03:57 GMT
Another related possibility if you get no relief from those excellent
suggestions, would be the possibility that the swaybar got installed w/o the
proper lubricant between it and the bushings. This could cause it to 'grab'
and 'let go' rather abruptly, possibly making a clunk sound. Easy enough to
remove the bars and check if need be.
You might also check torque on your shocks.
Chris
99BBB
> Thanks for the suggestions. I'll check out the sway bar and exhaust
> this weekend.
Aardvark J. Bandersnatch, BA, MA, BLT, PhD, MYOB, STFU - 22 Jun 2007 22:45 GMT
>I have a 96 Miata with only 39K miles that I bought used a few months
> back. I was at an autocross event the past weekend and heard a
[quoted text clipped - 3 lines]
> autocross earlier in the month. What could be causing this noise? Is
> something loose?
Remove and dispose of all corpses and body parts before beginning autocross
runs.
This is pretty much SOP.
Chris D'Agnolo - 23 Jun 2007 02:38 GMT
> Remove and dispose of all corpses and body parts before beginning
> autocross runs.
This is also an excellent suggestion, isn't the newsgroup great! ;-)
Chris
99BBB
Aardvark J. Bandersnatch, BA, MA, BLT, PhD, MYOB, STFU - 23 Jun 2007 23:17 GMT
>> Remove and dispose of all corpses and body parts before beginning
>> autocross runs.
>>
> This is also an excellent suggestion, isn't the newsgroup great! ;-)
Well, y'know, heads tend to roll around if not secured, and they make this
kind of hollow "thump" noise. It's kind of like putting one of those "icebox
watermelons" in the trunk.
It can be quite annoying.
... or so I hear.