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 05-03-2016, 04:04 PM
ytmtnman's Avatar
Still going
 
Join Date: Jul 2006
Location: Acworth, NH
Posts: 277
Still pulling after alignment

1983 300td,

Lined up today but still pulling hard to the right. Got the results posted in the picture. Should I return to the shop and ask for a redo, or refund? The tires have 15k on them and were put on right after an alignment where it still pulled right afterward. I'd like to put new tires on but don't want to chew right through them. All front end joint and bushings have been refreshed 15k ago also. What is your take?





__________________
I could not own any MB without the help from you...fellow forum members.


83 300td 207,XXX
Reply With Quote
  #2  
Old 05-03-2016, 04:15 PM
funola's Avatar
Registered User
 
Join Date: May 2005
Location: NYC
Posts: 8,234
I am surprised the shop would align the car with such worn tires.
__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
Reply With Quote
  #3  
Old 05-03-2016, 05:55 PM
Registered Hack
 
Join Date: Mar 2008
Posts: 4,626
They did not bring the caster into spec. I would ask why, that should be pretty achievable. Looks like they didn't even bother to touch it (perhaps they don't know how)

The caster setting could contribute greatly to this if the car has no 'incentive' to return to center.


I have read that the steering shock has caused trouble for people.

Did your tires look like that 15k miles ago? they should not be wearing like that if all the new parts are sufficient and the settings were decent.
__________________

Reply With Quote
  #4  
Old 05-03-2016, 05:56 PM
Registered Hack
 
Join Date: Mar 2008
Posts: 4,626
oh. just realized you had a wagon.

if the rear gets jacked up too high, you will wear the outer edges of the rear tires like that.
__________________

Reply With Quote
  #5  
Old 05-03-2016, 08:24 PM
Registered User
 
Join Date: Oct 2007
Location: Greater Metropolitan Beaverdam VA
Posts: 2,873
Rotate tires front to rear. If it still pulls, you have alignment/steering gear problems. If it does not pull after rotation it is a tire problem. Perhaps separating ply.
Reply With Quote
  #6  
Old 05-03-2016, 10:27 PM
Registered User
 
Join Date: Sep 2006
Location: Middle TN
Posts: 3,822
I don't see the attachment. These cars have enough adjustment that they can be adjusted to compensate for pull in 1 direction or another.

Also, caster changes affects camber and vice versa. The shop has to anticipate how adjusting 1 affects the other. The general relationship is in the FSM. One change is a 1 to 1 relationship ie 1* change of caster causes 1* camber. There is a 1.5 to 1 relationship going back.

Be sure to look in the FSM because the above is from memory on a 126 for concept only and the amounts are surely different but are listed. I would take the car to a shop that is interested in fixing things vs "adjusting to specs" if there is one locally. I ended up getting a lifetime alignment from Firestone. They are incompetent but I just take it back or to another store until it drives well. Also ask for one of the more experienced techs.

Most shops think owners are idiots and know nothing about their cars. Just keep trying until you get it working. Get them to guarantee that their alignment won't cause abnormal tire wear and be sure to have the final specs printed.
__________________
85SD 240K & stopped counting getting paint. 84SD 180,000. Probably up for sale in the fall 2020. 85TD beginning to repair to DD status.
Reply With Quote
  #7  
Old 05-04-2016, 09:03 AM
ytmtnman's Avatar
Still going
 
Join Date: Jul 2006
Location: Acworth, NH
Posts: 277
Quote:
Originally Posted by jt20 View Post
They did not bring the caster into spec. I would ask why, that should be pretty achievable. Looks like they didn't even bother to touch it (perhaps they don't know how.
They didn't touch caster because they said although it is out of spec, it is even and will not be an issue. Is this true?
__________________
I could not own any MB without the help from you...fellow forum members.


83 300td 207,XXX
Reply With Quote
  #8  
Old 05-04-2016, 09:44 AM
Registered User
 
Join Date: Oct 2012
Posts: 5,330
Speculation is almost pointless until you get the wheels changed around. I would put the front wheels on opposite sides first.
Reply With Quote
  #9  
Old 05-04-2016, 10:04 AM
Registered User
 
Join Date: Sep 2006
Location: Middle TN
Posts: 3,822
If you paid for an alignment, they should have set the caster properly. If the car doesn't drive correctly after setting everything to specs, adjustments can be made to compensate. Search "caster pull" for example.

I drove a set of tires that had a pull for their entire life. The shop swore that the problem was suspension. I was never so glad when a set of tires wore out. The new set tracked perfectly. Unsolved issues are the cost of buying car repair from rednecks with wrenches. They "think" they know what's right but only adjust close to specs and don't understand how adjustments are inter related.

I went to school with a retired Ford carburetor engineer. One of his projects was to take a new Lincoln off the line, tear it down and completely rebuild it with everything in the middle of specs. He said that it was one of the most beautiful driving cars that he'd ever been in.

Swap the tires or try another set if you have access. Set the alignment in the middle of specs then see what you have.
__________________
85SD 240K & stopped counting getting paint. 84SD 180,000. Probably up for sale in the fall 2020. 85TD beginning to repair to DD status.
Reply With Quote
  #10  
Old 05-04-2016, 11:53 AM
ytmtnman's Avatar
Still going
 
Join Date: Jul 2006
Location: Acworth, NH
Posts: 277
Called the shop up. He said he can't bring caster in to spec because the ride height in the rear is off. He says the rear squats and is uneven between L/R. I know I can adjust ride height, but can I adjust between L/R?
__________________
I could not own any MB without the help from you...fellow forum members.


83 300td 207,XXX
Reply With Quote
  #11  
Old 05-04-2016, 02:51 PM
Registered User
 
Join Date: Aug 2010
Location: Sacramento, CA
Posts: 2,586
Anytime I had a strong pull to one side, it was from the front tires. Swap L & R and its pulls the other way. Alignment can cause a pull, but I think that is fairly slight. They often set for a slight pull to counter-act crowned 2-lane roads, I recall in the camber adjustment (how tires lean in).
__________________
1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans
Reply With Quote
  #12  
Old 05-04-2016, 03:26 PM
babymog's Avatar
Loose Cannon - No Balls
 
Join Date: Jan 2006
Location: Northeast Indiana
Posts: 10,767
Cross-camber can affect pull. If one side is below spec, the other above, you can have pull.

The images don't show anymore, but I remember there being a difference between R&L camber, and I didn't see a spec for it.
__________________

Gone to the dark side

- Jeff
Reply With Quote
  #13  
Old 05-04-2016, 04:17 PM
Registered User
 
Join Date: Sep 2006
Location: Middle TN
Posts: 3,822
Quote:
Originally Posted by babymog View Post
Cross-camber can affect pull. If one side is below spec, the other above, you can have pull.
As can caster.

Steering Problems: Solving a Steady Pull

__________________
85SD 240K & stopped counting getting paint. 84SD 180,000. Probably up for sale in the fall 2020. 85TD beginning to repair to DD status.
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 10:38 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, 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