Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> Terrible front wobble. Bearing/ spindle spacer question.
roundtwo
post Jun 12 2024, 10:48 PM
Post #1


Member
**

Group: Members
Posts: 311
Joined: 9-February 20
From: Petaluma, CA
Member No.: 23,905
Region Association: Central California



Front bearing / spacer help - so close to on the road

914 six almost ready to go after getting it tuned on a dyno today. More about that later.
- trying to chase down the source of the shaking front end.
- Vetted out wheels, tires, tie rods, shocks, bushings, rotor warpage, etc…. All good
-Please see pics.

It seems as if there’s a mismatch between the inner bearing and the spacer. Somethings not right but I don’t know what it is.

The last true leftover problem from the previous owner.

24 mm carrera rotors, Porsche Brenbo brakes, 911 hubs,
new bearings and seals.

Any clue at to what’s wrong?
Attached Image Attached Image
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
roundtwo
post Jun 13 2024, 11:12 PM
Post #2


Member
**

Group: Members
Posts: 311
Joined: 9-February 20
From: Petaluma, CA
Member No.: 23,905
Region Association: Central California



@chrisfoley
@rfinegan
@mb911
@mate914
@mepstein
@technicalninja
@superhawk
@infaredcalvin
@rfinegan


Thanks everybody for all the responses.
Do my best to cover the topics
1. New Pirelli CN thirty36s Road force balance by Harvey W after the wheels were dialed guaged spun then refinished.
2. Harvey and a wheel specialist in the Bay Area both checked the wheels for trueness, etc.. both said good
3. Previous tires on the wheels had the same symptoms. Toyo r888 that probably sat for a bunch of time before I purchased the car. We’re nearly unwarn.
4. Chris foley shake test. No slop. Steering rack no slop side to side. New, Turbo tie rods. New inner and outer bearings with races. New spindle spacer. New bushings. Everything checked by me and also an alignment specialist at Sonoma Raceway corner, balance, the car and adjust to the right height, did the alignment. Race is fully seated. Spindle space are fully seated. I don’t see any bend in the spindles. All with 500ish miles before the wheels were restored, and new tires mounted.

5. Nick’s plan to try Chris at the red barns front wheels on my car to see how it drives. Hope to put my wheels on his car to see if he has any new imbalance on his front end.
6. Bearings adjustment quadruple checked leaving them slightly tight vs looser side.

Will post a couple pics with a couple questions
On

my best guess is the wheels are out of balance
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
roundtwo   Terrible front wobble. Bearing/ spindle spacer question.   Jun 12 2024, 10:48 PM
roundtwo   RE: Terrible front wobble. Bearing/ spindle spacer question.   Jun 12 2024, 10:50 PM
mepstein   The hub and bearings either fit on the strut or th...   Jun 13 2024, 04:11 AM
mate914   Tires can do what you are feeling. I once changed ...   Jun 13 2024, 05:02 AM
mb911   I believe Todd replaced tires already. I have had ...   Jun 13 2024, 05:40 AM
rfinegan   What wheels? Hub verse lug centrical wheels gives ...   Jun 13 2024, 05:52 AM
Superhawk996   Everything you measured has nothing to do with the...   Jun 13 2024, 11:04 AM
mepstein   We had a customer with a similar issue. He swore i...   Jun 13 2024, 11:13 AM
technicalninja   My first Z pulled violently to the left. Had a ben...   Jun 13 2024, 11:20 AM
ChrisFoley   With the car up in the air, grab a wheel at top an...   Jun 13 2024, 11:28 AM
Superhawk996   With the car up in the air, grab a wheel at top a...   Jun 13 2024, 11:45 AM
technicalninja   Right after you do what Chris suggests spin the wh...   Jun 13 2024, 11:45 AM
Superhawk996   Right after you do what Chris suggests spin the w...   Jun 13 2024, 12:09 PM
technicalninja   :agree: :agree: :agree: However, if you can se...   Jun 13 2024, 12:39 PM
infraredcalvin   Agree on tires, i put Toyo r888rs on both my cars,...   Jun 13 2024, 01:43 PM
Krieger   Did you check to see if the steering rack is tight...   Jun 13 2024, 11:10 PM
roundtwo   @chrisfoley [b]@[url=http://www.914world.com/bbs...   Jun 13 2024, 11:12 PM
roundtwo   RE: Terrible front wobble. Bearing/ spindle spacer question.   Jun 13 2024, 11:15 PM
roundtwo   See previous pic 1. When I slide on the rotor hu...   Jun 13 2024, 11:21 PM
ChrisFoley   The inner bearing inner race is supposed to contac...   Jun 14 2024, 08:55 AM
technicalninja   OK, you put 500 miles on it before the "wheel...   Jun 14 2024, 10:59 AM
roundtwo   @chrisfoley Thanks so much Chris… so it looks...   Jun 14 2024, 12:52 PM
mepstein   I hope you try a different set of wheels and tires...   Jun 14 2024, 01:19 PM


Reply to this topicStart new topic
3 User(s) are reading this topic (3 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 15th January 2025 - 08:45 AM