A Little Help with Front Suspension-w110 - Mercedes-Benz Forum

 
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post #1 of 4 (permalink) Old 12-20-2011, 10:03 PM Thread Starter
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A Little Help with Front Suspension-w110

I lowered the front subframe to replace the subframe mounts after removing the brackets that hold the torsion bar and then the leaf springs themselves. After replacing the mounts, the holes in the leaf spring are way out of alignment to the mounting bolts for the bracket and leaf spring (at least one inch to the rear). Should I just loosen the rear engine mount carrier bracket and hoist the subframe forward to align the holes to the bolts (the eccentrics are pretty much already to the rear as far as they will go)? Any other techniques? The body is sitting on a lift and the subframe is on jack stands. The mounts are left loose although there isn't a lot of play. I've left weight on the subframe for a couple of days to let the mounts settle. Still way out of alignment.

I'm kinda sorry I did this job now as the mounts were only half-collapsed and the car tracked well. Now I'm probably looking at an alignment as the caster is most likely compromised. Any down and dirty way to set the caster without going to an alignment shop?
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post #2 of 4 (permalink) Old 12-21-2011, 04:35 AM
GGR
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You should be able to push the subframe frontwards, as the mounts are quite flexible. What is preventing the subframe from moving frontwards? Didi you loosen the lateral strut at the back of the subframe? Yes. loosening the trans cross member may help you as it can move front and backwards. Not sure how it is on W110s but you should also loosen the bolt at the back of the front prop shaft or wherever the connection is to allow the drivetrain moving frontwards..

The more caster the better for better tracking. When it's all in place put caster to the maximum. You then have to check if one side is not pulled more than the other one.

Driving the car will tell you.

Ideally you should go for an alignment as you may end up wearing your tires. Before that replace the bushings at the back of the front leafs and check that all your connecting rods ans linkages are in good nick.

Last edited by GGR; 12-21-2011 at 04:38 AM.
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post #3 of 4 (permalink) Old 12-21-2011, 04:42 PM Thread Starter
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Thanks, GGR. I was able to pull the subframe forward with a come-a-long and align the leaf with the marks I made on the body. Now I'll just have to see how she tracks once I get the rebuilt calipers and new brake lines installed.

1981 300TD--310k miles
1970 280sel--172k miles
1966 230--162k miles
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post #4 of 4 (permalink) Old 12-21-2011, 08:53 PM
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You need to loosen the trans crossmember and the driveshaft center support bolts. This will allow the engine to move forward and back depending. The cross strut should also be loosened. Make sure all the bolts are retightened.

Check that the engine and trans mounts have not collapsed. Alignment is necessary. It can be costly because of all the fine adjustments.

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