Re: [diesel_mercedes] alignment [1 Attachment]

 
[Attachment(s) from Bogy Wan Kenobi included below]

Mobius:

Thanks too much for your interest and help. I recognize the picture as I have been under my car way too many times. My cams are as far to the inside as they can get - both cams on both sides. They are both is the same position on each side of both bolts. We can't pull the bottom in any further.

BUT

I'm told (by the independent shops) that by replacing the upper bushings I might be able to push the top back out to it's original position thus allowing the bottom to also be pushed out thus putting the camber adjuster back into the adjustment range. I'm hoping that will work.

That said I have learned my lesson about franchise shops - avoid them like the plague. Their guy knew absolutely nothing about the upper end of the suspension. It absolutely boggles my mind to think that someone could see the adjustment limits have been hit and not ask themselves what else could be wrong to cause this. He has obviously never worked on anything but the adjustments or he would at least have a clue.

On another note - it took me some time after owning this car to realize that the arm that holds the upper "ball joint" of each tire is actually also the sway bar and that it travels along the firewall from side to side and is the rod I see behind the engine. I thought it genius that the engineers got double duty out of one part in this fashion. Sadly, that part, what ever it is called, is in better condition on my parts car than the one on my driver. I realize that it will take some work to swap them. But it may be necessary as mine has rusted down to nearly just enough steel to hold the retaining bolt at the top end that holds the upper bushings. Are these parts interchangeable or are they sized for and fit to the car they are installed in?

Thanks for all your advice. 
Bogy.









On Friday, June 20, 2014 10:01 PM, "mobius mobius@mainestream.us [diesel_mercedes]" <diesel_mercedes@yahoogroups.com> wrote:


[Attachment(s) from mobius included below]


Bogy,
  Here's a picture of the lower control arm camber adjustment from the manual.  The car in the picture is adjusted to maximum negative camber.  If you loosen the nut and turn the bolt, the washer, which is keyed to the bolt by a flat spot, will cam around, sliding the bolt toward the center of the car in a slot in the frame.  That will make the camber more positive.  What happens with this set up, is the flat in the washer hole strips out, especially if a monkey is driving the wrench.

It's easy enough to replace the bolt.  You just have to have enough jacking equipment to control the weight so you can align the holes.  There isn't much that can be done to give you more in either direction, as it's limited by the slot in the frame.

Take a look at yours.  Take a picture if you want, but see where it's set.  Also look to see that the washers on both ends of the bolt are in the same orientation (not stripped).  I imagine it's stripped which is how they managed to give it more negative camber instead of less.  Or they stripped it trying to adjust it with the weight of a tank on it.  Don't buy cheap bolts (JCWhitney) or they'll just strip right out.

As far as the pull.  They call it that because it pulls the steering wheel in your hand but what actually happens is the side with more positive castor will push the car to the other side.  They should be very close but higher on the right side to push you up the crown of the road.  If you mostly do highway and the roads are flat, I would set them even for handling.

I haven't looked under my car yet to see what the setup is beyond checking for looseness, but I will when I get a chance

On further study, the rear IS toed in, just not enough.  At highway speed it would probably toe out a little.  Which is why it's got the red 'out of spec' flag.

I think I got that all straight, but it's been about 15 yrs and I'm a little rusty.





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[diesel_mercedes] alignment [1 Attachment]

 
[Attachment(s) from mobius included below]


Bogy,
  Here's a picture of the lower control arm camber adjustment from the manual.  The car in the picture is adjusted to maximum negative camber.  If you loosen the nut and turn the bolt, the washer, which is keyed to the bolt by a flat spot, will cam around, sliding the bolt toward the center of the car in a slot in the frame.  That will make the camber more positive.  What happens with this set up, is the flat in the washer hole strips out, especially if a monkey is driving the wrench.

It's easy enough to replace the bolt.  You just have to have enough jacking equipment to control the weight so you can align the holes.  There isn't much that can be done to give you more in either direction, as it's limited by the slot in the frame.

Take a look at yours.  Take a picture if you want, but see where it's set.  Also look to see that the washers on both ends of the bolt are in the same orientation (not stripped).  I imagine it's stripped which is how they managed to give it more negative camber instead of less.  Or they stripped it trying to adjust it with the weight of a tank on it.  Don't buy cheap bolts (JCWhitney) or they'll just strip right out.

As far as the pull.  They call it that because it pulls the steering wheel in your hand but what actually happens is the side with more positive castor will push the car to the other side.  They should be very close but higher on the right side to push you up the crown of the road.  If you mostly do highway and the roads are flat, I would set them even for handling.

I haven't looked under my car yet to see what the setup is beyond checking for looseness, but I will when I get a chance

On further study, the rear IS toed in, just not enough.  At highway speed it would probably toe out a little.  Which is why it's got the red 'out of spec' flag.

I think I got that all straight, but it's been about 15 yrs and I'm a little rusty.

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[diesel_mercedes] Re: What should I save? '84 w126 300SD.

 

Glad your daughter is getting better. 

 

I could use the rear stop/tail light assemblies and the wiring and connectors that are in the trunk to make a trailer towing connector for my "82 300 SD. 

 

Larry


 

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Re: [diesel_mercedes] What should I save? '84 w126 300SD.

 

On 6/20/2014 6:13 PM, ajrn@hotmail.com [diesel_mercedes] wrote:
Again-- so happy my daughter was protected by Agnes-- our own personal tank.. 

She's still on crutches, but-- very much at home, very much healthy otherwise.. 

...and for that I thank God-- and an old Mercedes Diesel.
Indeed!!  Very lucky.

I'd keep the whole thing, but you may not have the room.

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[diesel_mercedes] What should I save? '84 w126 300SD.

 

As you may have read, my 84 300SD (Agnes) was taken out in an accident.

Ultimately, I was mis-informed by my girlfriend who'd witnessed the accident (eyewitness testimony is usually flawed, btw).  My daughter had turned left in the path of a fullsized pickup she believed was slowing to turn.  (Neither was the case-- he'd just left his turn signal on from a previous turn).

The car was impacted in the right front quarter, spun more than 360 degrees, hit a guardrail behind it, ultimately to spin another 180 degrees. The pickup was doing legally 55mph, and it IS assumed they were going faster (as you can imagine)

Right front door/quarter/suspension is gone.   The dash displaced, as did the console-- I'm pretty certain the console hit my daughter's leg, fracturing her fibula.  Her orthopedic surgeon agreed with my assessment.

My goal is to strip anything of any value from it, either to sell, or save for the "next" w126.

My door cards were all out, as I'd been working on the windows..

I'd grabbed the window switches/mirror joystick from the console..

the speaker grilles were out of the dash, as I'd started installing a stereo..

I think everything from the "B" pillar back was undamaged, with exception the rear bumper passenger taillight, from the "bounce" off the guardrail..

I'm actually considering cutting the front off with a torch-- and quickly discarding that, making the back "lighter" and able to be moved into my partners' barn, where I can dismantle it slower.

The drivers' front/rear doors are solid..  The passenger rear is probably damaged (the front was driven into it)  I'm assuming the doors/glass are worth "something.." 

I'd replaced the entire rear suspension (bushings/bearings, etc) about a year ago with parts from MB Classic Center.  It has SDL rear springs that I'll want to save.. The halfshafts were rebuilt and "reversed" with new cv boots using a kit from MercedesSource..  I'll hopefully be able to get those out as well..

ARE there obscure bits I'm missing-- that are "relatively" easy to get at/out, that I'll regret leaving behind.

My goal-- at minimum-- is to have my "parts" 300SD powering something-- ideally I'd like to have my daugher in another w126.

I was actually contemplating (for a minute) keeping the rear quarters/etc with the goal of having a "car couch" made..  The metal was all solid-- has anyone done this??  The rear seat was in okay shape-- would it be able to be "refit" inside the open trunk?  It wouldn't be a "living room" piece-- more something to have in the shop, as a place to sit and remember.......

Any ideas would be appreciated.  Scrap value is all I'll have, since the car was only insured for liability-- and my daughter was at fault.

Again-- so happy my daughter was protected by Agnes-- our own personal tank.. 

She's still on crutches, but-- very much at home, very much healthy otherwise.. 

...and for that I thank God-- and an old Mercedes Diesel.




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Posted by: ajrn@hotmail.com
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[diesel_mercedes] Re: Agnes is gone.

 

....I believe that Agnes caught fire because of electrical shorts (created by the impact) combined with diesel being ejected from a return line that may have been knocked off by the impact..

She was hit in the passenger (right) front, where the positive battery "junction box" is, where the alternator cable goes "up" to the battery..  All of the cables were burned out of their casings-- so I can only assume.  Years ago, I'd done the higher amp (Saab?) alternator upgrade.  I drove primarily short (less than 10 mile) drives, and in in winter, was having problems keeping the battery strong enough to start the car, in the sometimes brutal Ohio Winters.    I had upgraded the wiring-- for the charging system-- as I recall "stock" was 55amps, and I'd gone to 90 or 110..  I'd also gone to an electronic cooling fan-- which I would do again..  It was attached by relay, to the "key-on" electrical system, with a circuit breaker. 

Otherwise, the car was bone stock..

As I said, Katie had said, she remembered the engine hadn't stalled-- so it would still be producing alternator output, and if an injector return came lose, diesel could be "spraying" under the hood.

The fire chief was actually a first responder to my daughter's accident. He's actually a personal friend of mine, and had met my daughter (ironically about two weeks before the accident) previously. I'd asked him if he had any insight, from a fire investigation standpoint..  He believed, like me, that Katie's shock, and the engine not stalling/being shut off were probably contributors..  He, as well as I-- couldn't find a specific "point of ignition" but-- it may have been trapped in twisted metal, which would "coincide" with my assumptions that it was primarily an electrical incident. 

The car would've been unrepairable either way..  I'll have to post pictures..

I'm glad my daughter is okay..   Now the process of "stripping" our old friend of anything usable-- and the hope we'll be able to find an affordable w126 to replace her with.. 

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Re: [diesel_mercedes] 300TD ALIGNMENT

 

On 6/20/2014 12:15 PM, Bogy Wan Kenobi polespearbogy@yahoo.com [diesel_mercedes] wrote:
As a matter of fact it does. How did you know?
Well, it's pointed to the right.  Add in the road crown and unless there is something major pulling it back left, like a broken spring, it's pretty much a given.
The only reason I asked is that a lot of techs do their adjustments by prying on the cameras rather than turning a wrench, so you can never be sure the printout actually represents the car.

I noticed they left the rear toed pretty far out.  Didn't even touch it.  It must go like a frog runs.  :o{
Did you buy a 4wheel alignment or just front?

It was late when I looked at it but I want to give it more time when I'm not so exhausted, if that ever happens again.  I'll share any thoughts.

It's a little hard to interpret their pictographs.  I don't know what's wrong with just listing the specs.  Maybe that would make it too easy for folks to interpret.

I'm very interested because mine's an 82, so same set-up and specs.  Speaking of, does anybody have them in normal text format?.



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Posted by: mobius <mobius@mainestream.us>
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Re: [diesel_mercedes] 300TD ALIGNMENT

 

As a matter of fact it does. How did you know?


On Thursday, June 19, 2014 11:09 PM, "mobius mobius@mainestream.us [diesel_mercedes]" <diesel_mercedes@yahoogroups.com> wrote:




On 6/19/2014 8:53 PM, 'Polespearbogy@yahoo.com' polespearbogy@yahoo.com [diesel_mercedes] wrote:
Here's the print out from yesterday.
They actually made it worse.  No excuse for that.
Does it pull right?





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Posted by: Bogy Wan Kenobi <polespearbogy@yahoo.com>
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