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Unimog 1300L 1984
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149 Posts
Discussion Starter #1
Just wondering if anyone has the camber angle for the U1300L's. My front wheels appear to tuck in a little at the bottom when viewed from the front. I also get a little steering shimmy from around 80kph.

I haven't jacked it up to look for play around king pin brgs or other as yet, but any comments if it is normal for a 1300L, or likely cause would be appreciated.

Thanks
Brid
 

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Unimog U1300L Year unknown, but it has a Bundesheer rebuild plate dated 96
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554 Posts
Mine looks the same, especially if you are on lower ground looking up at it. It may be the tyres you have on accentuating the camber? Mine are Michelin Power CL at a normal size and 35psi (Max recommended) the tuck in is definitely there. (I have no idea if there is any 'wobble' at speed but they are OK at 70Kph for short distances, just a bit heavier on the steering than XCLs, which were worse than useless in the local clay)
 

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1991 U1550L37, 2019 G550
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2,030 Posts
There are plenty of posts on Unimurr about this. Every mog has some shimmy at a certain speed. It depends on load balance and tire type/size, but nobody came up with the formula. Mine starts at 82 and leaves around 86. XZL 95% thread
 

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Unimog 1300L 1984
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149 Posts
Discussion Starter #8
Thanks fellas for your confirmation that the camber is normal. When I first noted the shimmy it appeared to come in at 82kph & disappear around 85...pretty much as Bloody German reports. As yet I haven't taken it up to much higher speed to find out if it is shimmy free then.
 

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'88 U-1300L, '70 406, '78 406, '78 416 project, '82 406, '57 404, '65 404, '70 404, '68 Haflinger.
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1,849 Posts
My U-1300 has two ranges of 'natural' shimmy, from about 38 to 40 mph, and again about 58 to 60 mph. No shimmy above that speed.

I discovered that disconnecting the stabilizer bars (done for trail work) eliminates the shimmy/shake, indicating this is a chassis resonance, I think. Yes, there is a thread about this on BenzW but I haven't found it. Consensus was that tires were not the reason but that tire bounce could initiate the chassis resonance. For that reason, having tires balanced does help, or just run balancing beads.

Bob
 

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1991 1300L Doka
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300 Posts
I don't have the rear stabilizer and my mpt 81s are about as unbalanced as a 50 cent jelly donut: no shimmy at any speed
 
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