Shock tower trouble - Defender Source
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  #1  
Old March 15th, 2010, 01:34 PM
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Shock tower trouble

Pothole 1, LR 0

Did manage to weld it all up and it should be fine. There were a few cracks in the top layer but the cup shaped bit underneath was solid so I just welded up the cracks and ground it all back down. No wonder it handled like ***t
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  #2  
Old March 15th, 2010, 01:37 PM
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Your shocks are too long or you do not have bump stops. That should never happen.
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Old March 15th, 2010, 02:03 PM
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In the past have had shocks that were too long on other vehicles. It is possible that the Monroe's I took off were too long. BUT...I think this was due to a pre-existing problem of corrosion in the upper plate. The rest of the tower is ok but it is one I pulled off and cleaned up last year so there was some rust. I didn't bother to measure the old shocks since I was removing them. But yeah , possible that they were too long. But again I think fatigue followed by a massive hit from an impressive DC pothole. I thought we would have a flat for sure. Bumpstops ok and in place. Well, now replaced with fancy red ones.

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Your shocks are too long or you do not have bump stops. That should never happen.
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  #4  
Old March 15th, 2010, 03:18 PM
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The way the top seperated, makes you wonder about being a defective part. Nice work. Curious what the other side looks like? Mark
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Old March 15th, 2010, 03:35 PM
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The original weld looks way narrow and crappy. Likely a monday morning hangover welding job at the factory.
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Old March 15th, 2010, 05:22 PM
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not sure which original weld you mean? BTW after looking at this, I think the way they are made is that there are two cups back to back the top one is welded open side up around the upper perimeter and the lower one maybe spot welded the upper one, open side down. Does that make sense?

The other side looked fine, was a much newer tower from the looks of things.

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The original weld looks way narrow and crappy. Likely a monday morning hangover welding job at the factory.
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  #7  
Old March 15th, 2010, 05:34 PM
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glad you fixed it. we almost died when we hit that expansion joint !
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Old March 15th, 2010, 05:49 PM
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Got a nice dent in the hood now? Or didn't it push up that far?
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  #9  
Old March 15th, 2010, 06:40 PM
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too true. changing lanes unexpectedly is always rather fun. Glad someone was in the car with me as proof I am not exaggerating.

Dan, the shock never went all the way through. It was as shown in the first picture, just plain broke off. The lower cup prevented it from going any higher.


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glad you fixed it. we almost died when we hit that expansion joint !
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  #10  
Old March 15th, 2010, 06:43 PM
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Quote:
Originally Posted by evilfij View Post
Your shocks are too long or you do not have bump stops. That should never happen.
I've seen it before with stock shocks. Crud can build up in that upper cup and rot can be bad.

I just picked up a set of stock length tubular turrets for this very reason (and you can grab the top which is sooo much better when changing them)
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  #11  
Old March 16th, 2010, 12:20 AM
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My recently "new to me" (and now since sold after a week of ownership) 1996 D1 had that happen at this years Winter Romp. Clunked all the way home.

Welded up and good as new.

And it would take a lot to get it to come *up* through because of the underside cup Dave mentioned.

Doug
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  #12  
Old March 22nd, 2010, 05:58 PM
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Had that happen on some crappy aftermarket turrets. Wimpy spot welds and the turret top pulled out on droop not compression, luckily not pulling out the brake lines in the process, I don't think there's enough travel available with standard suspension bushes. Welded them up properly and they've been fine since.
By welding up I mean cutting a slot in the outer and welding through to the top disc.
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