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Old 10-13-2014, 11:58 PM   #15
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I had mine aligned as close to zero as they could get it without the optional camber bolts after I read your post on the Sprinter forum. Did you have to use the optional camber bolts to get to 0° on yours?
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Old 10-14-2014, 12:01 AM   #16
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No. The tech said he could of have done it without the special bolt, but that having the bolt made the process MUCH easier.


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Old 10-14-2014, 12:08 AM   #17
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Well if my alignment change doesn't reduce the wear on the outer edge of the front tires, I'm going to get the special bolts and redo it closer to 0°. My suspicion is that the alignment specs are for the unloaded van. They don't compensate for the additional weight, especially in the rear, that Airstream put in there. Causes the rear end to be lower than standard and raises the front end causing the camber change to go more positive.
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Old 10-14-2014, 08:50 AM   #18
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I had the same problem and my MB dealer installed special bolts and realigned as warranty. This was after the 30k service and they send me off with unsafe tires.Click image for larger version

Name:	ImageUploadedByAirstream Forums1413294571.705621.jpg
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I already purchase the special bolts so I have a set left over.
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Old 10-14-2014, 08:58 AM   #19
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After my front tires were showing outer edge wear I replaced tires at 30,000 miles with a set of Michelins. Also had the alignment set by Sun Motors in Mechanicsburg, PA. They asked me to bring it in with the normal load I carry so they could get alignment set correctly.

Now after another 15,000 miles wear is even and van runs true and smooth.


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Old 10-14-2014, 09:02 AM   #20
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Quick question— Does everyone who is having alignment problems own an EXT model? On my non-EXT model, I've just had my 20k service done, with no evidence of uneven tire wear.

I did get a front-end alignment done after having the Koni shocks and struts installed concurrently with my 10k service, but no special bolts were required for the alignment.
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Old 10-14-2014, 12:08 PM   #21
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We are new to Interstate ownership, and have found your posts to be most informative. We are curious as to why you installed the Koni shocks and struts you mentioned above. Are they helpful in reducing vibration and/or maintaining alignment? Thanks!

Jim and Cyn
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Old 10-14-2014, 12:20 PM   #22
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Quote:
Originally Posted by andybree View Post
We are new to Interstate ownership, and have found your posts to be most informative. We are curious as to why you installed the Koni shocks and struts you mentioned above. Are they helpful in reducing vibration and/or maintaining alignment? Thanks!
Not so much for maintaining alignment.

The ride was originally a bit too soft for such a heavy vehicle, which was especially noticeable on these wretched New Orleans streets where there are more potholes than pavement. Some owners have likened the ride on their rear sofas to being like riding in a catapult, they'd bounce so high out of their seats when the vehicle hit a bump. The Konis make for a firmer (and harsher) ride, but with less bounce.
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Old 10-14-2014, 12:52 PM   #23
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AI 2015 steering wheel vibration at speed over 65

Quote:
Originally Posted by Protagonist View Post
Quick question— Does everyone who is having alignment problems own an EXT model?

Yes, mine is also an EXT model. But I didn't have a steering wheel vibration problem. Just uneven tire wear on the outside driver's side.
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Old 10-14-2014, 02:23 PM   #24
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Quote:
Originally Posted by andybree View Post
We are new to Interstate ownership, and have found your posts to be most informative. We are curious as to why you installed the Koni shocks and struts you mentioned above. Are they helpful in reducing vibration and/or maintaining alignment? Thanks!

Jim and Cyn
Also, if I may. Your Interstate is on the "new" chassis so suspension may ride differently than Pro's. Of course having never ridden in the back of mine or one of the previous generation Airstream Sprinters I don't know if there is a difference or not.
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Old 10-14-2014, 02:51 PM   #25
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I brought her to an sprinter MB dealer for alignment ,although it improved a little bit , I can still feel the steering wheel shake/ vibrate when doing 65 mph or above.
It is just normal to feel that due to the size of this motorhome?
Thanks.
The shaking obviously is from something out of round or unbalanced.

The tire could be out of round.

The tire could have a heavy spot that balancing did not cure.

The wheel could be bent.

The wheel could be out of round.

The wheel could be defective caused by improper manufacturing.

The tire wheel, hub and drum, could be out of balance.

A good test would be to have someone drive along the side of your coach, and have them observe what they perhaps can see, when you tell them that you feel the shaking, via your cell phone, or some other way of letting them know when you feel the vibration.

Sometimes, what the eye can see, is worth far more than the "thousand words".

Andy
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Old 10-14-2014, 04:02 PM   #26
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Some roads cause vibration on some vehicles. Often it is a concrete road with expansion joints that may resonate with your vehicle. Trying driving a Tundra on southern California concrete roads. They were designed to torture Tundra owners.

Otherwise, dynamic or force balancing may help. I had tires force balanced at a Discount Tires after another Discount dealer did a bad job when the new tires on the Tundra were installed. I don't know how force balancing is done—I imagine a guy yelling at the tire and hitting it with a tire iron to get it to behave.

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Old 10-14-2014, 06:51 PM   #27
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Quote:
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Otherwise, dynamic or force balancing may help. I had tires force balanced at a Discount Tires after another Discount dealer did a bad job when the new tires on the Tundra were installed. I don't know how force balancing is done—I imagine a guy yelling at the tire and hitting it with a tire iron to get it to behave.

Gene
Haven't seen it done but I believe it involves forcing a roller against the tire while it's being balanced. Here's a video.
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Old 10-14-2014, 06:55 PM   #28
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I had the same problem and my MB dealer installed special bolts and realigned as warranty. This was after the 30k service and they send me off with unsafe tires.Attachment 224362
I already purchase the special bolts so I have a set left over.
Peter


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Do you know what they set the camber and toe-in to?

What's a set of the special camber bolts cost?
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