Re: [MBZ] '84 190D update

2010-11-26 Thread Curt Raymond
DING!I've been thinking that the steering doesn't center well...
The rear has been done, the links and subframe bushings both plus the shocks, 
what else is there back there?
I think you're right about having to do all the rubber, I suspect at 165k most 
things are original...
-Curt
Date: Thu, 25 Nov 2010 12:37:57 -0600
From: Peter Frederick psf...@earthlink.net
To: Mercedes Discussion List mercedes@okiebenz.com
Subject: Re: [MBZ] '84 190D update
Message-ID: f85c5ffb-5777-4728-90db-c696f449c...@earthlink.net
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

If the car follows cracks in the road, something is loose in the  
front suspension.  Ball joints, tie rods, drag link, idler arm  
bushing, worn steering box.

Check the ball joint by jacking the front end up and supporting the  
lower control arm.  Pry upwards on the tire at the bottom -- if there  
is play in the ball joint, the steering knuckle will move before the  
control arm, and it will clunk.  They also squeak first most of the  
time, and will rattle on rough pavement.

A bad steering damper shows up in two different ways -- excessive  
vibration, especially straight ahead (the cylinder wears the most  
right there since one spends most of ones driving time with the  
wheels pointed straight ahead), and either failure to absorb any  
shocks at all or excessive stiffness.  The latter can cause the car  
to wander as the wheels will not return to center properly.

Finally, bad struts that are dragging when they turn will cause  
appearant wander for the same reason -- they are excessively stiff  
and it's difficult to get the front wheels exactly centered -- the  
car always seems to be drifting one way or the other, and dips in the  
road will cause them to rotate a bit, too, against the friction.   
Very annoying, and I just fixed it on my 300D a couple weeks ago with  
new struts.  Amazing difference in driving behavior.

If the car is sensitive to crosswinds, likely you have bad links in  
the rear suspension.  This allows the wheel carrier to deflect back  
to front, causing rear steer, which feels funky.  The links I took  
out Sunday were so bad I could move them sideways once the inner end  
was loose, drives much better now with just one side fixed!

Worn out or shrunken rear tie rod eccentric bushings will let the  
rear wheels steer under side loads as well.  Results in a floaty  
rear end, cross wind sensitivity, and noise as the wheels vibrate  
back and forth.

Really bad subframe mounts will allow the subframe to move under the  
car was well, same results

Bottom line, I think, is that one should plan to replace everything  
evenually that has rubber in it.

Peter


  
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Re: [MBZ] '84 190D update

2010-11-26 Thread Jim Cathey

Our 190D, when acquired, was the most truly stinky
atrociously-handling vehicle I'd ever driven.  Downright
scary.  Ball joint on one side, tie rod joint on one side,
both front struts, both rear shocks, and one link in the
back.  Transformed the car.  No doubt it could be even
better had I done more, but those were the definitely
bad things.

-- Jim



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Re: [MBZ] '84 190D update

2010-11-25 Thread Curt Raymond
I'd kind of discounted that because it passed inspection and they usually catch 
stuff like that... Maybe I'll get them to have another look.Oooh, even better 
maybe I'll have Mienekie or Midas have a look they usually find stuff... The 
look on their face when I tell them I'll do it myself is great.
-Curt
Date: Wed, 24 Nov 2010 18:48:11 -0600
From: OK Don okd...@gmail.com
To: Mercedes Discussion List mercedes@okiebenz.com
Subject: Re: [MBZ] '84 190D update
Message-ID:
    aanlktikd5ygbcnajoavijsqqjgtbpwy0rq_vbbjwb...@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1

Yes, I think the 201 has the steering shock (damper). When my 124 was darty,
and I had replaced the rear control arms, and it was still darty, I finally
took it to a frame/suspension/alignment shop where they found a very worn
lower front ball joint. Replacing both sides made it a VERY nice car to
drive!



  
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Re: [MBZ] '84 190D update

2010-11-25 Thread Peter Frederick
If the car follows cracks in the road, something is loose in the  
front suspension.  Ball joints, tie rods, drag link, idler arm  
bushing, worn steering box.


Check the ball joint by jacking the front end up and supporting the  
lower control arm.  Pry upwards on the tire at the bottom -- if there  
is play in the ball joint, the steering knuckle will move before the  
control arm, and it will clunk.  They also squeak first most of the  
time, and will rattle on rough pavement.


A bad steering damper shows up in two different ways -- excessive  
vibration, especially straight ahead (the cylinder wears the most  
right there since one spends most of ones driving time with the  
wheels pointed straight ahead), and either failure to absorb any  
shocks at all or excessive stiffness.  The latter can cause the car  
to wander as the wheels will not return to center properly.


Finally, bad struts that are dragging when they turn will cause  
appearant wander for the same reason -- they are excessively stiff  
and it's difficult to get the front wheels exactly centered -- the  
car always seems to be drifting one way or the other, and dips in the  
road will cause them to rotate a bit, too, against the friction.   
Very annoying, and I just fixed it on my 300D a couple weeks ago with  
new struts.  Amazing difference in driving behavior.


If the car is sensitive to crosswinds, likely you have bad links in  
the rear suspension.  This allows the wheel carrier to deflect back  
to front, causing rear steer, which feels funky.  The links I took  
out Sunday were so bad I could move them sideways once the inner end  
was loose, drives much better now with just one side fixed!


Worn out or shrunken rear tie rod eccentric bushings will let the  
rear wheels steer under side loads as well.  Results in a floaty  
rear end, cross wind sensitivity, and noise as the wheels vibrate  
back and forth.


Really bad subframe mounts will allow the subframe to move under the  
car was well, same results


Bottom line, I think, is that one should plan to replace everything  
evenually that has rubber in it.


Peter

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[MBZ] '84 190D update

2010-11-24 Thread Curt Raymond
When we last left the '84 190D it'd been shipped off to my Indy to un-screwup 
the rear subframe mounts.

Got it back today and the handling was back to where it was before I tried the 
subframe mounts, maybe slightly better.

To recap: if this car were a snowmobile I'd say it darts. The feeling is a 
little bit like getting blown around in the wind. Subframe mounts have been 
replaced, rear links have been replaced, rear shocks are new.



So I'm dammed tired of this and out of desperation I decided to pull off
 the 14 wheels/tires on the car and switch to my 15 winter wheels. In 
doing so I realized the old tires were mismatched front vs rear but I 
also realized whatever asshole put the wheels on last was a gorilla with
 the air gun. On the rear I've already got 2 stripped lug holes, one on 
each side and on the front driver's there was on I COULD NOT GET OFF.

Seriously, I've got a lug wrench from an old BMW, the crank type, and I jumped 
on it for like 10 minutes and it wouldn't move...

Finally took it to a friend's place and used his very nice Mac impact gun to 
buzz it off.



Anyway put on the winter tires/wheels and after the flat spots (they 
were on the '85 which sat a few months) rounded back out I can feel a 
SIGNIFICANT improvement. The car is driveable now at 65mph (fastest I 
could go where I was) where it was iffy at 50mph before. This makes the 
car commute ready more or less. My guess is the gorilla with the impact 
gun bent one or more of the wheels or I had a bad tire or two. I don't 
really care, I'm going to get rid of the 14s as I have 2 full sets of 
15s.



Its not perfect, still a little soft/darty, but its windy today so its 
hard to really tell. Does a 201 have a steering shock? I'm wondering if 
that could be the issue now, the front end is otherwise tight.



-Curt




  
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Re: [MBZ] '84 190D update

2010-11-24 Thread OK Don
Yes, I think the 201 has the steering shock (damper). When my 124 was darty,
and I had replaced the rear control arms, and it was still darty, I finally
took it to a frame/suspension/alignment shop where they found a very worn
lower front ball joint. Replacing both sides made it a VERY nice car to
drive!

On Wed, Nov 24, 2010 at 4:05 PM, Curt Raymond curtlud...@yahoo.com wrote:

 When we last left the '84 190D it'd been shipped off to my Indy to
 un-screwup the rear subframe mounts.

 Got it back today and the handling was back to where it was before I tried
 the subframe mounts, maybe slightly better.

 To recap: if this car were a snowmobile I'd say it darts. The feeling is
 a little bit like getting blown around in the wind. Subframe mounts have
 been replaced, rear links have been replaced, rear shocks are new.



 So I'm dammed tired of this and out of desperation I decided to pull off
  the 14 wheels/tires on the car and switch to my 15 winter wheels. In
 doing so I realized the old tires were mismatched front vs rear but I
 also realized whatever asshole put the wheels on last was a gorilla with
  the air gun. On the rear I've already got 2 stripped lug holes, one on
 each side and on the front driver's there was on I COULD NOT GET OFF.

 Seriously, I've got a lug wrench from an old BMW, the crank type, and I
 jumped on it for like 10 minutes and it wouldn't move...

 Finally took it to a friend's place and used his very nice Mac impact gun
 to buzz it off.



 Anyway put on the winter tires/wheels and after the flat spots (they
 were on the '85 which sat a few months) rounded back out I can feel a
 SIGNIFICANT improvement. The car is driveable now at 65mph (fastest I
 could go where I was) where it was iffy at 50mph before. This makes the
 car commute ready more or less. My guess is the gorilla with the impact
 gun bent one or more of the wheels or I had a bad tire or two. I don't
 really care, I'm going to get rid of the 14s as I have 2 full sets of
 15s.



 Its not perfect, still a little soft/darty, but its windy today so its
 hard to really tell. Does a 201 have a steering shock? I'm wondering if
 that could be the issue now, the front end is otherwise tight.



 -Curt--


OK Don
2001 ML320
1992 300D 2.5T
1990 300D 2.5T
1997 Plymouth Grand Voyager
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