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Old 12-31-1969, 04:00 PM
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Tekno RC EB48.4 Thread

Old 12-31-1969, 04:00 PM
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Old 04-12-2017 | 06:57 AM
  #736  
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Originally Posted by Jason B
I went through my shock build last night and was paying very close attention to this in light of this discussion... I encountered the same issue. I'm not convinced it's an issue with the rings, though... it's quite possible that the collars or the bodies aren't the proper size.

At any rate, there's definitely an issue somewhere. Hopefully under load, there will be enough pressure from the spring compression to keep the collars in place, but it's not a long-term solution.
Exactly what I was thinkin/ with the spring pressure they should hold hopefully/ definitely too loose for my liking though
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Old 04-12-2017 | 06:58 AM
  #737  
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Originally Posted by FlyingInMN
All 5+ of us didn't build the front right and the back wrong. I even put the cap o ring in the collar just to make sure I didn't screw up. The o ring is the wrong size.
I find it odd that you are blaming the o-ring when the same o-ring works fine on the other end of the car?
Its more likely that the machining on the shock body is slightly undersized making the o-ring feel loose on it.
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Old 04-12-2017 | 07:02 AM
  #738  
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Originally Posted by Jason B
I went through my shock build last night and was paying very close attention to this in light of this discussion... I encountered the same issue. I'm not convinced it's an issue with the rings, though... it's quite possible that the collars or the bodies aren't the proper size.

At any rate, there's definitely an issue somewhere. Hopefully under load, there will be enough pressure from the spring compression to keep the collars in place, but it's not a long-term solution.
On my first SCT, I actually skipped the o-rings completely. Never had a problem. Didn't realize it was an issue till I build my eb48.3 and caught it. There is a difference for sure, but it never seemed to be an issue.
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Old 04-12-2017 | 08:22 AM
  #739  
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Originally Posted by jmcelroy42
I find it odd that you are blaming the o-ring when the same o-ring works fine on the other end of the car?
Its more likely that the machining on the shock body is slightly undersized making the o-ring feel loose on it.
Nope. All 4 shock bodies measured .742". Not all too concerned about it, was easily resolved with some different o-rings.
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Old 04-12-2017 | 10:08 AM
  #740  
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Originally Posted by ezlight
Was just asking, asked on the last page to see if anyone checked it out.
I had a spring collar that wasn't milled on the inside to seat the oring at the factory. Tekno replaced it no problem. Not sure if that's your problem? Contact tekno I'm sure they will replace a defect
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Old 04-12-2017 | 10:15 AM
  #741  
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Originally Posted by Derrick87
As anyone had an issue with there back adjusting shock collars being really loose? It seems the O rings that go inside are smaller then the front ones no idea why. There extremely loose.
Well it was kind of frustrating at the time but now that I found a $0.30 o-ring at the hardware store it's not that big of a deal. Found a 1/16" o-ring part number 41-0018 that worked perfectly FYI.
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Old 04-12-2017 | 10:15 AM
  #742  
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Originally Posted by ezlight
Asked before, and no one answered, or confirmed checking.

The o-rings to seal the cap, and the one for the shock collar are in the same bags. It is possible that the wrong one was used in the wrong place. Can you guys go over these and confirm if this is the issue? The shock collar will definitely feel loose if the o-ring isn't right.
The shock cap orings are the thicker ones
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Old 04-12-2017 | 10:36 AM
  #743  
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Originally Posted by FlyingInMN
I read this today and that was my next step and ... I have the same issue. Fronts are great, rear is very loose. No way it's going to hold. Going to call Tekno tomorrow. Bummer.
I built the rear shocks and the collars were loose also, can we order just the o-ring? Part# ?
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Old 04-12-2017 | 10:48 AM
  #744  
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Originally Posted by hairymuffin
I had a spring collar that wasn't milled on the inside to seat the oring at the factory. Tekno replaced it no problem. Not sure if that's your problem? Contact tekno I'm sure they will replace a defect
This would be my guess also. Im not overly worried about it, as I would think the spring pressure will keep them from moving. I always index mine so time will tell.
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Old 04-12-2017 | 05:02 PM
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All 4 of my shocks were tight, a little dab of shock oil and work them up and down a few times they'll get smoother.
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Old 04-12-2017 | 05:16 PM
  #746  
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Originally Posted by ezlight
That's interesting, I am running those on my .4 without issue. First I've heard of it actually.
Well after further inspection, one of my enclosed wheel nuts developed a crack and the center of it pushed in. The enclosed part of the wheel nut actually tightened against the wheel hub giving the false sense that the wheel was tight, but resulted in a lost wheel during the main while leading .
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Old 04-12-2017 | 06:06 PM
  #747  
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In all fairness to the enclosed Tekno wheel nuts, the damage inflicted on them was all due to driver error...
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Old 04-13-2017 | 12:05 AM
  #748  
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Yes I noticed this. Super loose. My two front shocks are also slightly different shades of color.


Originally Posted by FlyingInMN
I read this today and that was my next step and ... I have the same issue. Fronts are great, rear is very loose. No way it's going to hold. Going to call Tekno tomorrow. Bummer.
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Old 04-13-2017 | 07:13 AM
  #749  
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Ready for action, another smooth Tekno build!!
Attached Thumbnails Tekno RC EB48.4 Thread-img_20170412_210534917-2672-x-1503-.jpg  
werner sline and ezlight like this.
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Old 04-13-2017 | 09:23 PM
  #750  
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Finally got my kit together. Can honestly say it was the nicest kit i've ever built. Went together so smooth. Best instructions i've seen in a kit.

Only complaint is the chassis is so narrow I could barely fit the ESC and cap pack in there.

Can't wait to run it!
Attached Thumbnails Tekno RC EB48.4 Thread-image1.jpg  
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