9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDrive shaft question. - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Reported or suspected cause
loose bolts (the ones
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that report identifying a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Reported cause
As a matter of fact the times I had issues was caused by loose bolts (the ones that attach the CV Joint to the (hub or tranny) flanges, but that was my own fault..
Drive shaft question. - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary
Leading evidence: 'loose bolts (the ones' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'loose bolts (the ones' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace joints' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Drive shaft question. - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Reported and suspected causes (1)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
loose bolts (the ones
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Reported cause
As a matter of fact the times I had issues was caused by loose bolts (the ones that attach the CV Joint to the (hub or tranny) flanges, but that was my own fault..
Drive shaft question. - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
I'm going to be puling the drive shafts off my car and I'm wondering how I can tell if they are okay to put on new boots and repack with new grease or if they are worn out and just need to be tossed away? They currently have almost 128,000 miles on them.
Thanks!
On mine I removed the old boots, cleaned out the old grease and replaced with Redline High Temp CV-2 grease, at around 125,000'ish total miles. The boots were old but not cracked, but I did it because I was overheating the grease on track and it was coming out the axle vent hole. The Redline grease solved it.
I wondered the same thing, how to tell if the joint was still good, and the way I tested it was to hold the axle in one had, and the joint in the other had, and twist the joint to move the axle. If the axle moves right away, and there is no clicking/play from when you rotate the joint and when you feel the force in the axle, then I believe you are all good. I tried this throughout a couple of positions of CV joint extension with relation to the axle.
Steve, I have never disassembled the CV Joints of the Porsche, however I have done it many times with the Fiat and Alfa Romeo half shafts and never had an issue.
The CV Joints have basically five components:
1) Inner part of the bearing (with the splines for the half shaft)
2) Steel balls
3) Outer part of the bearing (with the holes for the flange bolts)
4) Steel circlip (..?) that keeps the CV joint assembly on the shaft
5) Rubber boot
When you complete
disassemble and clean
the CV joint, you will be able to inspect the races where the steel balls move, you will be able to easily see if the races on the inner and outer part of the CV joint are worn (or not smooth), IF one of them is worn most likely some of the balls are pitted as well.
I have mixed inner and outer sections (in good condition) without any issues.
As a matter of fact the times I had issues was caused by loose bolts (the ones that attach the CV Joint to the (hub or tranny) flanges, but that was my own fault..
PS: After removing the circlip from the shaft, you can remove the CV Joint and by rotating the inner section on it's axis allows you to separate the inner and outer sections of the bearing, just don't loose the balls...
This sounds like a good test to me. Of course it should not be clicking when driven. My 928 developed a click that I noticed a low speed while backing into my driveway. The boots looked good, but one end of one was a bit loose and water poured out when I took the boot off. Even though there was plenty of grease still in there all the components were rusty. The other CV joint on the same half-shaft looked fine, but when I cleaned it to repack it with grease I found a gouge in the inner race that looked like a manufacturing defect that had been uncovered as the joint wore. Had to change both joints.
Thanks for the feedback all. I bought new shafts for the job. Hopefully the current shafts are okay and I can reboot and grease them, then either save them for future use or even sell them to make back some of the cost of the new shafts. I have not heard any clicking coming from them or anything abnormal. Once I get the job done, I'll pull these apart and if they are good to go I'll order in the new boots, clamps and grease.
