Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 09-07-2007, 01:56 PM   #1
Registered User
 
Join Date: Sep 2006
Location: the OC
Posts: 27
Major tire wear AND very loud noise at high speeds

At high speeds (70+) I can't even hear the radio the sound is really loud coming from the rear.

I just saw the rear driver side tire is down to the wire (only on the inner portion).

I think this is an alignment problem.

However, I was over hearing that it may be a wheel bearing problem instead.

What do you guys think?

bronxballer is offline   Reply With Quote
Old 09-07-2007, 02:06 PM   #2
Track rat
 
Topless's Avatar
 
Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,687
Garage
Could be either or both. Year? Model? Mileage? Driving habits (freeway, mountain roads, track)?
__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor
Topless is offline   Reply With Quote
Old 09-07-2007, 02:34 PM   #3
Registered User
 
Join Date: Sep 2006
Location: the OC
Posts: 27
2002 Boxster S 6speed 60k
I drive it on streets and highways pretty spirited
Any way to find out which one it is before spending any money?
bronxballer is offline   Reply With Quote
Old 09-07-2007, 02:48 PM   #4
Registered User
 
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Hi,

If trying to take an economical approach, go for the Wheel Balancing 1st. This is an As Needed maintenance item which has no mileage or time limit. Your alignment can go out on the way home from the alignment shop under certain circumstances (hitting potholes, speed bumps, etc the wrong way), and most people's alignments are usually not exactly spot on after several thousand miles of driving. And, it more often the cause than Wheel Bearings - the odds are in it's being the cause. That said, it may well turn out to be the wheel bearings and the simple Shimmy and Shake test won't always rule them out.

Be sure to have the wheels dynamically, or Road Force, balanced using a Hunter 97XX machine. This will cost you about $100, and if it solves the problem (as the odds dictate, but don't insure), you're done. If it doesn't solve the problem, well it's there's a good chance you needed it anyway and it may have contributed to a Wheel Bearing issue. Hope this helps...

Happy Motoring!... Jim
MNBoxster is offline   Reply With Quote
Old 09-07-2007, 02:57 PM   #5
Registered User
 
Join Date: Sep 2006
Location: the OC
Posts: 27
I wouldve done the balancing first, BUT my rear driver side tire is worn to the wire.
No question I need tires on that side.
Plus a lack of balance wont cut up the tires down to the wire.

Something is hitting the tires..
bronxballer is offline   Reply With Quote
Old 09-07-2007, 03:04 PM   #6
Registered User
 
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Quote:
Originally Posted by bronxballer
Plus a lack of balance wont cut up the tires down to the wire..
..

Hi,

It could...

Happy Motoring!... Jim'99
MNBoxster is offline   Reply With Quote
Old 09-07-2007, 06:40 PM   #7
Porsche "Purist"
 
Paul's Avatar
 
Join Date: Aug 2003
Location: Wisconsin
Posts: 2,107
Garage
BTDT, on my car it was an alignment issue.

Have a good alignment shop adjust the rear toe and the camber as close to zero as the specs allow. On my car tire wear has almost stopped and I haven't noticed much difference in handling. Your car like mine was, is probably adjusted to the high side of the specs. Toe out eats the inside of tires like kids eating candy.
__________________
1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
Paul is offline   Reply With Quote
Old 09-07-2007, 08:37 PM   #8
Track rat
 
Topless's Avatar
 
Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,687
Garage
Sounds like time for new rear tires and 4 wheel alignment at least. Tell the alignment tech you do a lot of freeway driving and you are getting extreme tire wear on the inside. They can put moderate camber on the car so your tires wear more evenly.

__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor
Topless is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 11:02 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page