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newb with newb question.... any help appreciated!

Old 10-11-2010, 10:15 PM
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newb with newb question.... any help appreciated!

Hi guys, got my first s2 today! Traded a crotch rocket for it! Love it but I already have a problem.... I'm by no means a newb to a wrench... I build bike engines but a Honda? For sure! I only have my cell right now for internet so pardon this being short and sweet.... on the way home I noticed I have a vibration from the rear... saw u have a lot of this but mine seems a lil different than most have posted. My does it under acceleration and deceleration but if u give it enough gas where its not speeding up OR slowing down where its not putting any type of strain on anything speeding up or slowing down while driving......it stops! Any ideas? Thanks guys
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Old 10-11-2010, 10:27 PM
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P.s. could someone move this to the tech section for me please!?
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Old 10-12-2010, 07:53 AM
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hmmm....that sounds odd...any mods on the car?
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Old 10-12-2010, 07:59 AM
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Any sounds coming from rear??
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Old 10-12-2010, 08:30 AM
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uhh your probly shift on the wrong gear... thats whats casing the noise. 1st Gear(0-15) 2nd(15-25) 3rd(25-35) 4th( 35-45) 5th( 45+) 6th( yes...60+) thats what i do for normal driving. The clutch on s2k is bit different compare to other cars, the shifter is shorter and clutch is short also. If you shift on the wrong gear it will stop so you don't damage your tranny.
...IDK I might by wrong too, it might be a tranny problem too.
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Old 10-12-2010, 11:11 AM
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The guy that had it lowered it about 1.5 inches with tein? Setup....not tranny....,I drive like a grandma.... lol and it starts up in the mph range... through town? Nada
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Old 10-12-2010, 11:18 AM
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And its not really a noise more of a bad vibration u can "feel" on ur butt in the seats!
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Old 10-12-2010, 11:31 AM
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Possibly a very bad rear alignment, unbalanced wheel, something like that. Or perhaps a problem with the diff. That is if I understand the kind of vibration your talking about.
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Old 10-12-2010, 11:41 AM
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hmm...i asked about mods because i figured from a breif description of vibrating noise, it wouldnt seem odd if it were coming from an aftermarket exhaust for any number of reasons..e.g. drone you arent used to, loosened bolt(s), several things....but with the description, its a little vague....maybe record it?
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Old 10-12-2010, 11:49 AM
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Could be axle nuts not tight enough, CV joints failing, something failing in the diff. How many miles on it? Driving this car like grandma will do more harm than good. For around town shift between 4500 and 5500 rpm. Highway speed in 6th gear at 4000 rpm is close to 80mph. Then report back on noise.


Jonathan
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Old 10-12-2010, 11:52 AM
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How many miles?
I just switched my CV joints cause a vibration when I'm on the gas.
anyways read this

idk if you have seen this or not, but since your new, i figure i can take the risk.

http://forums.s2kca.com/showthread.php?t=21680

also i have a year 2000 model, the clutch rattles a little to.
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Old 10-12-2010, 01:18 PM
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130,000 but the car has a new engine so runs excellent. Oh yea its an 02. Had a friend say probably axle? Found axles for 80.00 bucks each new but hate to trial and error 2 or 3 hundred dollars at a time. As far as recording it..... doubt u will hear it more of a vibration than sound
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Old 10-12-2010, 02:02 PM
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DO NOT BUY THOSE AXLES.

**** axles will either:
1) arrive completely broken
2) arrive and already be pitted
3) pit within 10,000 miles

http://www.driveshaftshop.com/ <--they have stock replacement axles that are $500 for a set.
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Old 10-12-2010, 02:17 PM
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Originally Posted by desmo4 View Post
Could be axle nuts not tight enough, CV joints failing, something failing in the diff. How many miles on it? Driving this car like grandma will do more harm than good. For around town shift between 4500 and 5500 rpm. Highway speed in 6th gear at 4000 rpm is close to 80mph. Then report back on noise.
Yeah axle nuts and cv joints are a good idea too. Check the bearings too.
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Old 10-12-2010, 02:32 PM
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First what MY is the car?

It sounds like pitted inner CV joints. See the post above about swapping them side to side. Also if the car is lower you should look into spacers for the axles. Here is a DIY http://www.s2ki.com/forums/index.php?showtopic=722666 that you can install them at the same time as the CV cup swap.

Kevin
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Old 10-12-2010, 03:24 PM
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Gonna give the cup switch a try tomorrow and will report back! Thanks everyone for ur input! Definitely appreciated!
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Old 10-12-2010, 06:25 PM
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dare I say inner cv joint ? (axle cup warning applies....ask Turbosix )

worse under accel at full torque vs. all out or all off, especially uphill .

put an eyeball on the a$$end before you make a decision, and check up/down 'n left/right play at inner joints.

if you don't know what you're lookin' at, find somebody who does.

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Old 10-12-2010, 06:39 PM
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I don't have a vibration but I do have that annoying click on take off which sounds like it would be those axle nuts I've heard about. How much should it cost to get those tightened down to the proper specs?
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Old 10-13-2010, 02:23 PM
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changed diff. fluid and found quite a bit of shavings on the magnet......also laying under the car if I wiggle on the passenger side axle coming out of the diff I get a small amount of play on each side but the passenger side make a clicking noise when i wiggle it....
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Old 10-22-2010, 03:34 PM
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both axles replaced with new ones and no change.....still vibrating, god I hope it's not the diff but begininng to think so.. I see they are upwards of a $1000.00 I'm not sure what else it could be? took it and had them balance my tires and the guy did have a hell of a time balancing one of my rear tires....axles needed replaced anyway though because the freakin passenger side cup was so dry it looked like you wiped it out with a paper towel..literally.. anyone else with suggestions???
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Old 10-22-2010, 04:10 PM
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Not to thread-jack here, but how waterproof are those cups?? Any idea? I'm thinking I should get them re-greased...like tomorrow!
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Old 10-22-2010, 04:27 PM
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Originally Posted by brads-s2 View Post
both axles replaced with new ones and no change.....still vibrating, god I hope it's not the diff but begininng to think so.. I see they are upwards of a $1000.00 I'm not sure what else it could be? took it and had them balance my tires and the guy did have a hell of a time balancing one of my rear tires....axles needed replaced anyway though because the freakin passenger side cup was so dry it looked like you wiped it out with a paper towel..literally.. anyone else with suggestions???
where did you get the axles?

Originally Posted by Jim21680 View Post
Not to thread-jack here, but how waterproof are those cups?? Any idea? I'm thinking I should get them re-greased...like tomorrow!
they should be waterproof and greaseproof. unless you buy shitty aftermarket ones that i warned about earlier in this thread. every single set slung the grease out with ~8k miles all over the bottom of my car.
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Old 10-22-2010, 05:40 PM
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I got them from a seller on eBay brand-new! There is no longer any play that shouldn't be there and and no in and out movement at the wheel. What does a bad differential in these guys feel like? Other than the tires that's all that is left that could be bad...
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Old 10-22-2010, 05:52 PM
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They have a lifetime warranty!
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Old 11-08-2010, 03:55 PM
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ok guys getting really discouraged at this point.....Put in a used but checked as good differential from a wrecking yard in North Carolina...SAME THING!!!!! so now I have bought:
new axles
new rear tires and had them balanced
NEWER differential as this is what the Honda dealer said it was.....that was a joke...

Same old Shaky S.....
I did notice a few things when putting in the new differential though and I swear if that is all that was wrong I don't know whether I'll be happy or pissed...

one of the bolts is missing where you connect the drive shaft to the diff. as well as one of the little copper colored pieces that they go through. would this throw the balance off the driveshaft enough to cause a vibration?

and two, where the car is lowered the rear wheels are cambered in at the top so it kinda rides on the inside of the tires a little...

I love this car and have always wanted one but at this rate not sure if I can afford to keep it and continue dumping money in lost causes.....
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Old 11-08-2010, 10:49 PM
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Hmm maybe a tie or camber rod or something.... Its hard to diagnose such a problem without hearing it.
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Old 11-09-2010, 11:01 AM
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yea I know man, thats y I finally broke dowm and took it to the dealer only to find out they misdiagnosed it and I put a new rear diff in maybe for no reason?
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