Rennlist - Porsche Discussion Forums

Notices
996 Forum 1999-2005
Sponsored by:
LN Engineering

Front end clunk and grind

Thread Tools
 
Search this Thread
 
Old 01-13-2019, 03:31 AM
  #1  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default Front end clunk and grind
So I'm giving it a go. but the upload for photos is down. Any guesses in the meantime? 2000 C4. Now in my care.
c didy is online now  
Reply Like
Old 01-13-2019, 09:34 AM
  #2  
pcasanova
Racer
 
pcasanova's Avatar
 
Join Date: May 2015
Location: Atlanta, GA
Posts: 301
Received 26 Likes on 22 Posts
Default
Bump stops and Top Mounts possible for "Clunk". Wheel bearing for "grind"?

More details (or better yet a video) would help.
pcasanova is offline  
Reply Like
Old 01-13-2019, 11:31 AM
  #3  
yelcab
Three Wheelin'
 
yelcab's Avatar
 
Join Date: Mar 2013
Posts: 1,787
Received 637 Likes on 397 Posts
Default
Its a C4 so maybe even axles are grinding possibilities...
yelcab is offline  
Reply Like
Old 01-13-2019, 11:47 AM
  #4  
Pulx30
Instructor
 
Pulx30's Avatar
 
Join Date: Sep 2018
Location: Charlottesville, VA
Posts: 106
Received 18 Likes on 13 Posts
Default
Sway bar drop links and bushings for the clunk. At least that fixed it on my C2.

Pulx30 is offline  
Reply Like
Old 01-13-2019, 12:55 PM
  #5  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
photos pending

here
c didy is online now  
Reply Like
Old 01-13-2019, 12:57 PM
  #6  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
Originally Posted by pcasanova
Bump stops and Top Mounts possible for "Clunk". Wheel bearing for "grind"?

More details (or better yet a video) would help.


Yes, the upload fx is on the fritz.
c didy is online now  
Reply Like
Old 01-13-2019, 01:04 PM
  #7  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
This might be part of the problem. ..
c didy is online now  
Reply Like

Trending Topics

Old 01-13-2019, 01:08 PM
  #8  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
Pop quiz:

What kind of springs are these?



c didy is online now  
Reply Like
Old 01-13-2019, 01:11 PM
  #9  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
markings




c didy is online now  
Reply Like
Old 01-13-2019, 02:25 PM
  #10  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
Why are there ball bearings at the top of the strut?
c didy is online now  
Reply Like
Old 01-13-2019, 02:45 PM
  #11  
pcasanova
Racer
 
pcasanova's Avatar
 
Join Date: May 2015
Location: Atlanta, GA
Posts: 301
Received 26 Likes on 22 Posts
Default
Is the car lowered? Maybe H&R Sport springs based on google search.

https://www.vividracing.com/sport-sp...04-p-1704.html
pcasanova is offline  
Reply Like
Old 01-13-2019, 03:20 PM
  #12  
JoeyCapranica
Instructor
 
JoeyCapranica's Avatar
 
Join Date: Nov 2018
Posts: 164
Likes: 0
Received 1 Like on 1 Post
Default
The bearings at the top of the front struts allow them to twist when the suspension is moving. The rear doesn’t have that. You need to keep contaminants out of that top mount bearing.
JoeyCapranica is offline  
Reply Like
Old 01-13-2019, 05:12 PM
  #13  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
Originally Posted by JoeyCapranica
The bearings at the top of the front struts allow them to twist when the suspension is moving. The rear doesn’t have that. You need to keep contaminants out of that top mount bearing.


Yes, agreed.

I don't think C2 struts have them. What's the diff?
c didy is online now  
Reply Like
Old 01-13-2019, 05:20 PM
  #14  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
Originally Posted by pcasanova
Is the car lowered? Maybe H&R Sport springs based on google search.

https://www.vividracing.com/sport-sp...04-p-1704.html


Hmmm. Might be right. I can't read the numbers.


Anyway, you are at least partially right and get credit. The other part of the answer to what kind of spring it is would be?

Broken.

I'm looking at options. I guess that's not unheard of. Is it common?
c didy is online now  
Reply Like
Old 01-13-2019, 05:33 PM
  #15  
c didy
Three Wheelin'
Thread Starter
 
c didy's Avatar
 
Join Date: Oct 2009
Location: yoou -tah
Posts: 1,718
Received 225 Likes on 161 Posts
Default
What's the story on top mount options? Time to replace them, 19 years is over due. OEM vs. aftermarket vs pillow ball?
c didy is online now  
Reply Like



Advanced Search
Quick Reply: Front end clunk and grind


Reply Closed Thread Share
Forum Jump

All times are GMT -3. The time now is 01:25 AM.