Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-29-2009, 09:21 PM
AJD's Avatar
AJD AJD is offline
Registered User
 
Join Date: May 2006
Location: New Hampshire
Posts: 49
300SDL front suspension issue

1987 300 SDL, 187K miles

The right front wheel has a very little bit of play when jacked up and gripping front tire at 10 and 4 o'clock. A 'clunk' noise going over bumps has started in the past couple of weeks and as of recent has started to 'groan' on slow speed turns. Any ideas what component(s) is going... ball joint maybe...?

Also, if I'm going to start replacing components, which ones make sense to do while "I'm in there"...?
Reply With Quote
  #2  
Old 10-29-2009, 10:54 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Hey Andy,

The two symptoms do not appear to be from the same culprit. The clunk could definitely be a lower ball joint, but the groan could very well be wheel bearings that are in need of a repack.

I'd have a front end shop check for play in the ball joints before tackling them............it's a miserable job............and a spring compressor is almost mandatory.

While you are in there, I'd seriously look at the LCA bushings and the guide rod mounts. If they've never been done, the time to do them is when the spring is out.

If you're feeling flush, the upper control arms and stabilizer bar bushings would be next on the list.
Reply With Quote
  #3  
Old 10-29-2009, 11:30 PM
Banned
 
Join Date: Nov 2001
Location: Cape Cod Massachusetts
Posts: 1,427
Quote:
Originally Posted by Brian Carlton View Post
a spring compressor is almost mandatory.
On the 116/123/126 chassis vehicles there is no need to remove the spring or use a spring compressor when R&R a lower ball joint. Lowering the lower control arm onto a stand or block would prevent any strain on the shock or a safety chain could be threaded thru the spring if someone is paranoid

First the caliper and wheel hub/rotor is removed. The steering spindle is then removed after disconnecting the tie rod's ball joint, the upper control arm's ball joint and last the lower control arm from the lower ball joint's stud.

With the steering spindle removed the failed ball joint is extracted from the spindle and a new ball joint installed. The spindle is then reinstalled in reverse order.
Reply With Quote
  #4  
Old 10-29-2009, 11:33 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by Billybob View Post
On the 116/123/126 chassis vehicles there is no need to remove the spring or use a spring compressor when R&R a lower ball joint. Lowering the lower control arm onto a stand or block would prevent any strain on the shock or a safety chain could be threaded thru the spring if someone is paranoid
Having just completed all the front end work on the SD, and observing the location of the ball joint, I stand my my previous statement. I would never want to extract the spindle from the LCA with the spring in place. I wouldn't advise anyone else to attempt it, either.
Reply With Quote
  #5  
Old 10-30-2009, 01:09 AM
Registered User
 
Join Date: May 2009
Location: Hamburg, NY
Posts: 145
Though they may look ugly replacing the lower ball joints is actually not a difficult job with the spring in. I replaced both mine in a little under 3 hours.
__________________
Serenity-86' 300SDL 482,000 miles (on a "14" head!)
Reply With Quote
  #6  
Old 10-30-2009, 01:27 AM
Greg
 
Join Date: Dec 2008
Location: San Carlos, California
Posts: 431
my W201 has the same clunk from the passenger side from wheel, but ive only noticed this going over ONE particular speed bump.
__________________
Current
2006 E320 CDI, 57K bought at 67K "Liesl"
1986 190E 2.3-16, 198K bought at 56K "Brigitta"
1987 300TD (Chuggin Along), 292K "Friedrich"
1995 E320 Wagon, 200K "Louisa"

Past
1987 300SDL, (sold) 125K, bought for 1$ "Kurt"
Reply With Quote
  #7  
Old 10-30-2009, 10:57 AM
AJD's Avatar
AJD AJD is offline
Registered User
 
Join Date: May 2006
Location: New Hampshire
Posts: 49
Follow up

Thanks guys for your replies.

I will attempt to take a more definitive look this weekend and start with repacking front bearings first, and then go from there...

Best Regards!

Andy
Reply With Quote
  #8  
Old 10-30-2009, 11:40 AM
Registered User
 
Join Date: Nov 2004
Location: North central Texas
Posts: 2,579
Spring stays in place when replacing upper or lower ball joints on this car. I've replaced several...

Your "clunk" could be, and is most likely, the large guide rod bushing.
Reply With Quote
Reply

Bookmarks

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 -4. The time now is 01:31 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page