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  #16  
Old 12-12-2007, 07:16 PM
vstech's Avatar
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I still see no issue with raising the car an extra foot off the ground, and using a floor jack to lower the control arm to release all the pressure off the spring... it's what we did in the shop, and I will give it a try when I rebuild my euro TD...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
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  #17  
Old 12-12-2007, 07:29 PM
KAdams4458's Avatar
Mmm! Diesel!
 
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Quote:
Originally Posted by vstech View Post
I still see no issue with raising the car an extra foot off the ground, and using a floor jack to lower the control arm to release all the pressure off the spring... it's what we did in the shop, and I will give it a try when I rebuild my euro TD...
I've used that approach on some vehicles, but never a Mercedes. It might be perfectly safe.

I'll say this much... The lower control arms on my 300D wouldn't drop but a tiny bit further with everything unbolted. Even with full spring pressure on them, the LCA joints were so ate up with gunk and corrosion that they would hardly budge. I even tried to lever them downward with an 8' 2X6, and only managed to crack the board in the middle.

Spring pressure may not ever be relieved in such a hardcore case of joint stiffness such as my car suffered from, because extended travel of the LCA through rotation of the pivot point may not be possible, or it may progress from stuck to fully extended too rapidly to be safe. Don;t let that jack drop too far away from the LCA if you find yourself prying on the LCA to get more travel.
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  #18  
Old 12-12-2007, 07:33 PM
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ugh! seized with gunk you say? mine are wollared out, so I don't think that will be an issue for me... I would NEVER let the floor jack get away from the LCA... and I would have a cage of some sort between me and the spring in case something unforseen would occur. but I have never had an issue doing this on other makes of cars.
wish me luck.
I may post video/pictures of this if I attempt it in the future...
Oh, I just noticed I went over 4000 posts... I have too much free time... Those that know, do. Those that understand, teach.
Aristotle
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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  #19  
Old 12-12-2007, 08:00 PM
patbob's Avatar
Its a Whatsit
 
Join Date: Oct 2006
Location: Portland, OR
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Quote:
Originally Posted by vstech View Post
I still see no issue with raising the car an extra foot off the ground, and using a floor jack to lower the control arm to release all the pressure off the spring... it's what we did in the shop, and I will give it a try when I rebuild my euro TD...
You might want to compare the fully extended length of that spring with the installed, compressed length before you try it. I didn't do any actual comparison between the two states, but as I recall, there's quite a difference between them.. something on the order of it doubling in length. I don't think you can pivot the LCA down far enough to get that much extension without risking the spring slipping of the bottom plate.

But.. what do I know. I'm just a guy with a family that needs me who wasn't guts enough to try that method
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  #20  
Old 12-12-2007, 08:06 PM
KAdams4458's Avatar
Mmm! Diesel!
 
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I'd just stay out of the direct path of the spring. If it's gonna launch with the LCA arcing downwards, it's likely to fly straight out of the wheel well. Don't be in the way, and don't have anything near by for it to deflect off of and in to you once it clears the wheel opening, and I suspect you'll be fine. The ShopForum Safety Brigade will likely think differently. (It's all in fun, folks.)

Wrestling the spring back in to precise alignment without the compressor could be a chore, though. It's a bit of a pain even with the compressor compared to some of the other cars I've done.
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- K.C.Adams

'77 300D Euro Delivery
OM617 turbo / 4-speed swap
404 Milanbraun Metallic / 134 Dattel MB-Tex

Current status:
* Undergoing body work


My '77 300D progress thread

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