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Tekno RC EB48.4 Thread

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Old 01-11-2018, 05:44 PM   -   Wikipost
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Welcome to the EB4.4 Wiki page.
If you edit the page, please add your name and date prior to your addition. While an admin can view the history, this makes it easier for everyone to just check updates. We'll put the newest additions at the top.

Bob B 8/10/17 - Should I start with the kit setup?
The kit setup is a great place to start. One other option that many of us start with is Joe's rough track setup. You can find that setup here
In order to run it you need 3x2.1 pistons and 3x2.0 pistons. (They are marked on the sheet as 3.1 and 3.0).

Matt W 7/7/17 - What is overdrive and when should I use it?
The NB48.4 comes stock with a 12t pinion (TKR8152) and the 39t ring (TKR8151) in both the front and rear and the EB48.4 has a 12t pinion (TKR8152B) and the 40t ring (TKR8151B) in both the front and rear.

The two sets of gears are used to overdrive the front of the EBs or underdrive the rear of the NBs. If you have both vehicles and want to try underdrive it's as easy as swapping the front diff and pinion of the EB and the rear diff and pinion of the NB. Underdrive helps on very loose tracks, when you need more on power steering or if the rear of the car feels loose.

Tips and Tricks
Setup Sheets:
Setup sheets for all Tekno RC vehicles can be found here. Please be sure to try our recommended setup. It works very well on most tracks.

Warranty Policy:

Tekno RC is the only company in the industry that will give 50% off of parts if returned to them using the General Warranty return policy found on their website. The parts can be lightly used or completely abused, as long as the part is still being produced it's covered!

Piston Drills:

Some of our setups recommend using pistons that are enlarged. For instance 4x1.9 or 3x2.0. To drill the pistons we recommend the following:
GMK Supply Piston Drill Set
16PC Metric Bit Set Metric Sizes 2.00 to 3.00 MM.

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Old 04-14-2017, 06:09 AM
  #751  
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what size drill bit is everyone using to ream out the arms 2 mm maybe wish they put regular bit sizes in the instructions .thanks in advance
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Old 04-14-2017, 06:34 AM
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Originally Posted by ScottZ
what size drill bit is everyone using to ream out the arms 2 mm maybe wish they put regular bit sizes in the instructions .thanks in advance
I had to pick up a #19 drill bit. Kinda hard to find but it works.
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Old 04-14-2017, 06:39 AM
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Originally Posted by ScottZ
what size drill bit is everyone using to ream out the arms 2 mm maybe wish they put regular bit sizes in the instructions .thanks in advance

Works way better:

https://www.lowes.com/pd/Oregon-Chai...g-File/1112123
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Old 04-14-2017, 06:48 AM
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thanks will pick it up today
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Old 04-14-2017, 08:45 AM
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Yes, go for the chain saw file. Most of us have moved to that, and it's safer. The #19 bit was the old method and worked, but less precise and you could make mistakes if the bit grabs the plastic and cuts too much. Amazon option:

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1
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Old 04-14-2017, 08:47 AM
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I'm wondering if the anodizing process is why the shock collars are so loose. My rear shocks are much lighter than the front shocks and the tears are loose. My fronts are much darker and tighter.
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Old 04-14-2017, 09:01 AM
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Originally Posted by Mikeand22
I'm wondering if the anodizing process is why the shock collars are so loose. My rear shocks are much lighter than the front shocks and the tears are loose. My fronts are much darker and tighter.
easy way to find out is the tray a rear collar on a front shock.
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Old 04-14-2017, 09:47 AM
  #758  
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Anyone notice that the kit doesn't seem to include enough rear wheelbase shims?

It seems you need a total of 12mm worth of shims, but the kit only includes 10mm. (4x2mm and 2x1mm).

All the setup sheets on their sites use 12mm (6mm on each side)....? Am I missing something?
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Old 04-14-2017, 09:52 AM
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Originally Posted by mike142
Anyone notice that the kit doesn't seem to include enough rear wheelbase shims?

It seems you need a total of 12mm worth of shims, but the kit only includes 10mm. (4x2mm and 2x1mm).

All the setup sheets on their sites use 12mm (6mm on each side)....? Am I missing something?
I noticed this, too - more play on the outer hinges than I would have expected...
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Old 04-14-2017, 10:28 AM
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Originally Posted by mike142
Anyone notice that the kit doesn't seem to include enough rear wheelbase shims?

It seems you need a total of 12mm worth of shims, but the kit only includes 10mm. (4x2mm and 2x1mm).

All the setup sheets on their sites use 12mm (6mm on each side)....? Am I missing something?
The stock setup in the manual only calls for 5mm of shims per side. There isn't room for 6mm per side unless you remove a little material from the arm or the hub.
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Old 04-14-2017, 10:41 AM
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Originally Posted by anr211
The stock setup in the manual only calls for 5mm of shims per side. There isn't room for 6mm per side unless you remove a little material from the arm or the hub.
The extra mm shim fit in mine without any material needing to be removed.
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Old 04-14-2017, 10:52 AM
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Originally Posted by anr211
The stock setup in the manual only calls for 5mm of shims per side. There isn't room for 6mm per side unless you remove a little material from the arm or the hub.
I think what he's saying is that there is room for 1mm+, and I found that to be the case on mine, too. I doubt the play will be an issue, but definitely something I noticed.
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Old 04-14-2017, 10:53 AM
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Originally Posted by crash n go
The extra mm shim fit in mine without any material needing to be removed.
I also used 6mm on one side and it fit perfect. 5mm seemed to have way too much play.
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Old 04-14-2017, 11:40 AM
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Originally Posted by crash n go
The extra mm shim fit in mine without any material needing to be removed.
Mine too, I added an exta 1mm as the play bothered me..... I'm sure it will matter when I'm smashing pipes and tumbling down the straights, lol.
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Old 04-14-2017, 01:32 PM
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this seems like a dumb question, but...

My old (but still working) orion 1900kv motor only has M4 holes on it. The Tekno motor mount uses M3 screws. Is there any solution to this problem other than buying a new motor?
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