Bounce or shake in suspension, Help!! |
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Bounce or shake in suspension, Help!! |
RustyWa |
Sep 2 2004, 12:03 PM
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#1
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Working Member Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 |
So what's the deal?
Going to work and back, on a recently re-paved highway, my car feels "bouncy" in the suspension. I can feel it in the butt so I think that is the rear end no? It really gets going between 60-70mph. Feels like it's going to shake me and the car apart. It is not comfortable at all. While it's doing this shake and bounce, if I take the "slack" out of the gear shift lever, it's moving back and forth with the frequency of the shake. Does that mean the engine and tranny are moving around also? The car has: New tires New Bilsteins New springs New front wheel bearings Engine and tranny mounts look good New 4 wheel alignment This issue is driving me nuts!! |
RustyWa |
Sep 2 2004, 12:05 PM
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#2
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Working Member Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 |
Let me add... The car did this before all those things were replaced also.
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2-OH! |
Sep 2 2004, 12:43 PM
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#3
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Senior Member Group: Members Posts: 552 Joined: 17-October 03 From: Santa Clarita, Kalifornication Member No.: 1,253 |
Rusty:
Sounds like maybe the motor/transmission mounts ??? Have someone else put the car in 1st and take off fairly quick...You look underneath and see if the motor/trans moves before the car does... Just make sure the person who is driving knows the difference between 1st and reverse... 2-OH! |
mike_the_man |
Sep 2 2004, 01:57 PM
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#4
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I like stuff! Group: Members Posts: 1,338 Joined: 11-June 03 From: Regina, Saskatchewan, Canada Member No.: 809 |
Motor and trans mounts were my thoughts too. There's not really to much else to be wiggling around back there. It also could be your rear suspension console. Have you checked the trailing arm mounting ears for cracks? Most likely motor mounts though.
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Brad Roberts |
Sep 2 2004, 02:09 PM
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#5
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Do you have wheel spacers or adapters ??
Ball joints (new or old ?) B |
RustyWa |
Sep 2 2004, 02:18 PM
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#6
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Working Member Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 |
Thanks for the suggestions. I'll get someone to drive the car so I can take a look. I'll also get someone to drive behind me at speed and see if anything is jumping around.
No adapters or spacers. Haven't changed ANY of the suspension bushings. Suspension seems very stiff. Hardly moves if I push down on the bumpers. Forgot to mention some other new parts: New turbo tie-rods New ball joints Thanks. |
opera guy |
Sep 2 2004, 04:04 PM
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#7
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Member Group: Members Posts: 337 Joined: 28-June 04 From: upland, ca Member No.: 2,268 |
QUOTE(2-OH! @ Sep 2 2004, 10:43 AM) Just make sure the person who is driving knows the difference between 1st and reverse... 2-OH! hahahahaha, man, i nearly spit out my mouthful of lunch at the monitor when i saw that. first week after i got my 914, i was trying to back my 99 honda accord out of the drive way, couldnt figure out why car wont move backwards. thought i have the e-brake on or something, no, that wasnt it. dammit, whats wrong, tranny blew? unlikely, car is only a few years old... took about 2 minutes to figure out i got 914-shifting-itis (IMG:style_emoticons/default/lol2.gif) |
RustyWa |
Sep 2 2004, 09:55 PM
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#8
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Working Member Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 |
Well, I just went snooping around the rear end of my car. Took out the rear shocks to take a look at my shocks and springs. While putting the wheel back on, I noticed a clunk. Turned out that the passengers inner trailing arm bolt was loose and I was getting some lateral play. Tightened it up and no more clunk. Haven't taken it for a test drive yet.
Does this seem like it could have been the problem? My thinking is that it could have been loose for quite some time or maybe the alignment guy loosened it for some reason and never torqued it down. |
T l2 O Y |
Sep 2 2004, 09:59 PM
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#9
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Newbie Group: Members Posts: 9 Joined: 18-August 04 From: Sumner, WA Member No.: 2,569 |
I bet you got it...
2-OH! |
Aaron Cox |
Sep 2 2004, 10:06 PM
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#10
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
hopefully it didnt oval your suspension ear (IMG:style_emoticons/default/ohmy.gif)
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RustyWa |
Sep 2 2004, 10:06 PM
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#11
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Working Member Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 |
One other thing I was wondering about. Could my suspension be too stiff for my tires? My tires are 195/65s on 4-bolt Fuchs. Could the sidewalls be that bouncy?
I thought my springs, bought used, were 100#. But now I'm thinking they are 180# progressives. What do you think? The wire diameter measured about .55". Here's a photo. Attached image(s) |
RustyWa |
Sep 2 2004, 10:14 PM
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#12
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Working Member Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 |
QUOTE(acox914 @ Sep 2 2004, 08:06 PM) hopefully it didnt oval your suspension ear :o I was thinking that too. (IMG:style_emoticons/default/unsure.gif) I'm sure it didn't do it any favors. Here's a close up of the springs. I thought the coils at the top were dead coils.... Attached image(s) |
Aaron Cox |
Sep 2 2004, 10:15 PM
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#13
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
180's
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Trekkor |
Sep 2 2004, 10:15 PM
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#14
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I do things... Group: Members Posts: 7,809 Joined: 2-December 03 From: Napa, Ca Member No.: 1,413 Region Association: Northern California |
Test drive it and report.
My first thought was as mentioned, trans mounts. My shifter was dancing around too, and vibrations in the cab. 911 sport mounts fixed it all. KT |
RustyWa |
Sep 3 2004, 08:18 AM
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#15
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Working Member Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 |
Happy, happy, joy, joy!
Well that loose nut seemed to be it. Sheesh...that must be the only fastener I haven't touched. Car and shifter was not dancing around this morning. It was a very pleasant drive. A little stiff, but nice. |
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