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View Full Version : rear knocking. s13


rewplayff
06-01-2007, 11:15 PM
i hear hard knocking, like an angry father knowing your screwing his daughter behind that locked door, ONLY when i make a hard right and maybe hit little bumps or something i dont know. its that hard, like i can feel it. i first noticed it on the track drifting and its gotten worse since then, so i dont know if the little bumps cause it because the track is fairly smooth.

the search feature helped me take the next step and i thought it would solve the problem but it didn't. from searching i found a lot of people solved their knocking problem with subframe collars. but mines is still there after i installed the collars. did i not tighten them down enough? the fsm said 80 so thats what i did. my diff isn't loose and the axle boots aren't leaking or ripped, they look fine. nothing else really seems out of place. strut mounts are tightened.

i have megan tracks set to 70% stiff and a welded diff in the rear if that helps. i've never heard knocking like that before with the welded diff.

what should i look at next?

i apologize if i missed the solution searching, if i did can someone point me there.

FaLKoN240
06-01-2007, 11:27 PM
Check to see if your tophat bolt is tightened down on your right side coilover.

I had a similar knocking noise on my car.

rewplayff
06-01-2007, 11:46 PM
tophat bolt? is that the one right under the black damper adjustment knob?

D1GP
06-02-2007, 12:14 AM
i think i got the same prob as u. just installed coilovers and i keep hearing this clunk in the rear. brand new poly subframe bushings too.

FaLKoN240
06-02-2007, 12:18 AM
tophat bolt? is that the one right under the black damper adjustment knob?

The nut I'm talking about precisely. Check that thing out.

na3j nitsuj
06-02-2007, 01:51 AM
could it be ur ecxhaust hitting something....?mine has clunking sound too...

but i never did bother checking it...

u should check urs...

goodluck figuring it out...

sijia10358
06-02-2007, 02:06 AM
are you sure its not ur tires rubbing the quarterpanel? maybe u need a fender roll or pull. If its not that then...did u recently change to 5-lug?

rewplayff
06-02-2007, 02:54 AM
i'm thinking its the tophat bolt like 240falken was saying, because like i said i can feel the knocking like an angry dad. i know what the exhaust hit sounds like as well as the wheel rub because i've had those noises before. and i haven't changed to 5 lug but i know what a broken wheel bearing sounds like. i'll let you guys know, hopefully this can help out other people when they search once i find the culprit. i'll check that bolt in the morning. thanks guys

swayray
06-02-2007, 12:12 PM
did you just install subframe spacers?? maybe you have to let that angry father in...

RJayS.
06-02-2007, 12:41 PM
let us know man i have the same problem. only when i turn right

xblack240x
06-02-2007, 01:03 PM
Heh, cool, I have the same problem but never looked into it... I get it when I turn hard... I think left, but I'm not sure, haven't driven it hard for ahwile... LMK what you do :bigok:

ZenkiKid
06-02-2007, 10:31 PM
ive had that problem eversince i was on stock shocks, now im on coilovers and it has gotten worse, i just learned to ignore it.