S2000 Under The Hood S2000 Technical and Mechanical discussions.

Prop shaft vibration

 
Old 03-06-2019, 01:41 PM
  #11  
Community Organizer
 
s2000Junky's Avatar
 
Join Date: Jun 2007
Posts: 28,355
Received 222 Likes on 210 Posts
Default

Originally Posted by clio View Post
Is the vibration an issue only under load?
Yes.
s2000Junky is online now  
Old 03-06-2019, 06:11 PM
  #12  
 
Join Date: Oct 2010
Posts: 400
Received 7 Likes on 7 Posts
Default

Originally Posted by s2000Junky View Post
Yes.
Although reading the original post again it states the vibration remains from accel-steady-decel
This indicates to me it may not be the cups causing issue.
clio is offline  
Old 03-06-2019, 10:11 PM
  #13  
Community Organizer
 
s2000Junky's Avatar
 
Join Date: Jun 2007
Posts: 28,355
Received 222 Likes on 210 Posts
Default

Originally Posted by clio View Post
Although reading the original post again it states the vibration remains from accel-steady-decel
This indicates to me it may not be the cups causing issue.
Its true, it may not be. Wheel balance would be more inline with the symptom. But cant rule it out entirely until the cups are swapped. Its free to do, but not free of time. The only other thing Id suggest is inspect all the drivetrain mounts, from engine back to diff.
s2000Junky is online now  
Old 03-07-2019, 12:21 AM
  #14  
Registered User
Thread Starter
 
Join Date: Sep 2016
Location: the Netherlands
Posts: 152
Received 12 Likes on 12 Posts
Default

Originally Posted by s2000Junky View Post
The CV cups develop a wear pattern after a while and will eventually vibrate, typically under heavier throttle application first, its a known fix to swap the cups from side to side to change to a new wear position. It doesn't explain why you have vibration now, but its something Id likely do in your case to rule out and may likely solve your vibration issue. Otherwise, sounds like a wheel balance issue.
Hmmmm, I am having problems related to the prop shaft / main drive shaft though, and was talking about the CV's inside there, not about the CV's from the axles. Do you really think doing stuff to the axles could fix something, or have you accidentally misread? Btw, I already have axle spacers installed for about a year now.
Scigheras is offline  
Old 03-07-2019, 02:38 AM
  #15  
Registered User
 
Join Date: May 2018
Location: Munich - Germany
Posts: 169
Received 14 Likes on 10 Posts
Default

Have you marked the position of the end caps to the prop shaft?

As fa as i know these shafts gets balancend in factory, therefore the postion of the end caps to the prop shaft is important.
Mr.Matchbox is online now  
Old 03-07-2019, 07:29 AM
  #16  
Community Organizer
 
s2000Junky's Avatar
 
Join Date: Jun 2007
Posts: 28,355
Received 222 Likes on 210 Posts
Default

Originally Posted by Scigheras View Post
Hmmmm, I am having problems related to the prop shaft / main drive shaft though, and was talking about the CV's inside there, not about the CV's from the axles. Do you really think doing stuff to the axles could fix something, or have you accidentally misread? Btw, I already have axle spacers installed for about a year now.
Ahh maybe I did, sorry. There is another thread about half shaft issues going as well, may have inadvertently crossed. Sounds like you need a new driveshaft. I serviced mine once in the time it was on the car after 200k miles. How many miles are on yours? This isn't a regularly serviced item, and often I air on "if it isn't broke don't fix it" mentality for reasons like this, but yeah it sort of defies logic if you say it all went back together properly. All you can really do is pull it back apart and try again, try clocking it if you can and or replace the shaft.

Last edited by s2000Junky; 03-07-2019 at 07:34 AM.
s2000Junky is online now  
Old 03-07-2019, 10:01 AM
  #17  
Registered User
Thread Starter
 
Join Date: Sep 2016
Location: the Netherlands
Posts: 152
Received 12 Likes on 12 Posts
Default

Well it's fixed

I removed and installed the prop shaft again today, did two things, no idea which one has fixed it:

1. I noticed when removing it that the rear CV was almost fully compressed in its joint whereas the front CV was almost fully extended. Maybe the vibrations came from the rear CV riding against whatever it is that it can ride against when its fully compressed? No idea if this makes any sense. But when installing the prop shaft again, this time I made sure both CV's were equally compressed/extended.

2. I simply bolted it up a full 180 degrees rotated/clocked from where it was previously.
Scigheras is offline  
Old 03-07-2019, 10:05 AM
  #18  
Community Organizer
 
s2000Junky's Avatar
 
Join Date: Jun 2007
Posts: 28,355
Received 222 Likes on 210 Posts
Default

next time don't fix it if it aint broke
s2000Junky is online now  
Old 03-07-2019, 11:51 AM
  #19  
Registered User
Thread Starter
 
Join Date: Sep 2016
Location: the Netherlands
Posts: 152
Received 12 Likes on 12 Posts
Default

Very true
Scigheras is offline  
Old 03-11-2019, 08:44 PM
  #20  
Registered User
 
Join Date: Feb 2018
Location: utah
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default

did you take the cv joints apart to re-grease them? you may have installed the race gear in the cage and cup wrong, i did this and had that same humming noise, then i went back in and put it together the right way and now its flawless. the race gear and cage both have specific orientations within the cv cup.
gray.s2k is offline  

Quick Reply: Prop shaft vibration


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands