Tekno NB48
#1068
http://rcrenew.com/tools.html
I just use channel lock pliers on the 4 shoes. Your flywheel will have marks on it after you run a few times anyway.
#1071
I've almost finished my build (2 bags left), but i've moet some issue: ProTek starter box' rubber wheel can't reach flywheel with brackets on (but can w/o brackets). Here is fullsize pic, gap is clearly visible (it's about 2-3mm). I've already written to Amain support, but decided to ask here, maybe i'm missing something and doing some things wrong? Clutch system is stock one.
#1072
I've almost finished my build (2 bags left), but i've moet some issue: ProTek starter box' rubber wheel can't reach flywheel with brackets on (but can w/o brackets). Here is fullsize pic, gap is clearly visible (it's about 2-3mm). I've already written to Amain support, but decided to ask here, maybe i'm missing something and doing some things wrong? Clutch system is stock one.
#1073
Finally i've removed only rear bracket and was able to touch wheel by wheel pressing hard enough to develop chassis flex. Maybe i need to press some more to make things work with both brackets? How hard it meant to be pressed in 'normal' conditions?
#1074
I see what you are saying now, I don't have that problem on the hudy box because the locating pins sit straight on the top of the starter box case, as does the chassis of the buggy, there's no 'brackets' also sitting under the chassis.
It's always best to push down on the engine to reach the starter wheel, but I don't have to flex the chassis at all to reach it, normally. Maybe those who use the Ofna box can help you out more, as they also have the sliding brackets.
It's always best to push down on the engine to reach the starter wheel, but I don't have to flex the chassis at all to reach it, normally. Maybe those who use the Ofna box can help you out more, as they also have the sliding brackets.
#1075
Lets get this figured out so you can go burn some nitro
Here is my car on the OFNA box. Notice you can only see one side of the wheel
due to wear.

Here is the box without the car. Again notice the wear on the wheel. It still
reaches the flywheel like this.

Here is one with the box in the down position.

And here are a couple of the flywheel.


Here is my car on the OFNA box. Notice you can only see one side of the wheel
due to wear.

Here is the box without the car. Again notice the wear on the wheel. It still
reaches the flywheel like this.

Here is one with the box in the down position.

And here are a couple of the flywheel.

Last edited by JsK; 03-31-2014 at 12:33 AM.
#1076
Thanks for pics. It's not so obvious on that photos: does your wheels hit each other only with top plate on st.box in lower position without flex in chassis? Or you need to push hard not only to engage st.box but to reach rubber wheel with flywheel making chassis flex?
#1077
So i've measured everything involved:
- Clearance between chassis line and flywheel: 3.2mm
- Highest point of rubber wheel (from top plate' line): 5.5mm
- Thickness of the bracket: 5mm
Basic math tells that there is more than 2.5mm gap between wheels.
- Clearance between chassis line and flywheel: 3.2mm
- Highest point of rubber wheel (from top plate' line): 5.5mm
- Thickness of the bracket: 5mm
Basic math tells that there is more than 2.5mm gap between wheels.
#1078
Thanks for pics. It's not so obvious on that photos: does your wheels hit each other only with top plate on st.box in lower position without flex in chassis? Or you need to push hard not only to engage st.box but to reach rubber wheel with flywheel making chassis flex?
centered above the wheel. Pull the motor. Mark the wheel on the starter box
and then turn the wheel until the mark is at the very top. That mark should
be right in the center of the flywheel hole in the chassis. Move the pegs until
the starter box wheel is not only centered front to rear but also left to right.
Notice how the car is not centered on the box.


I you have the wheel right dead center in the flywheel hole and it still wont
reach your flywheel you can try a couple of things.
First look inside and make sure nothing is caught in the spring/switch
assembly keeping it from collapsing all the way. If thats all good and you
have the lid compressing as far as possible the next step would be to try
shimming the motor plate up , between the bottom of the box and motor
bracket. A couple millimeters is all you should need.
#1079
and see if they have any ideas. Or you can shim it up.
#1080
Anyway i don't think that total uptravel of their starter box (5.5 - 5.0 = 0.5mm) is acceptable for nitro cars. There is no shims in kit, but desc. stated about '95% ready - fit brackets and go'. Seems i've got sort of PITA...



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