H2 Steering - what have I done wrong?

MrSlow · #1 19-03-2013

Hi

I've just bought myself an H2 and getting back into racing after a long time away.

I'm having some trouble with my steeriing and looking for some help.

With the servo horn on vertically and everything symetrical left and right, I am finding that I have more steering to the right than to the left. How do I solve this?

Is it a matter of adjusting the servo horn to equal out the steering, or have I made an error in contruction?

Thanks in anticipation.

metalmickey0 · #2 19-03-2013

If everything on the car looks correct then personnally i`d remove your servo horn from the servo. Then power up your radio gear and check the servo is central. Then with it still powered on, refit the horn so the wheels are straight. As then your steering should be central.

adon30 · #3 19-03-2013

I had this with mine. The servo horn on mine was slightly to one side. Swapped it one splie over and it was worse the other way. In the end I put it back and adjusted the link between the servo horn and steering rack (pro version is adjustable).
Now with my transmitter settings it is now within a couple of % lock to lock and goes fully each way.

Hope that makes sense

MrSlow · #4 19-03-2013

Excellent, thanks guys.

I'll try both those and see what works best.

Any tips on keeping the front wheels on?
Just more thread lock?
I think someone mentioned getting the Losi 22 screws.

adon30 · #5 19-03-2013

I use losi 22 lug nuts. There just over £2 a pair. Haven't had a problem since.

djmcnz · #6 19-03-2013

Quote:

Originally Posted by MrSlow

With the servo horn on vertically and everything symetrical left and right, I am finding that I have more steering to the right than to the left. How do I solve this?

End Point Adjustment (EPA) on your radio is how you fix this. And it's the only way to do it properly.

If the servo centres and your throw is different left to right (and your turnbuckles are equal) then the only fix is EPA.

MrSlow · #7 19-03-2013

Thanks again guys.

I've just spent hours playing about with different combinations with no real difference.
My radio gear is on the cheap and cheerful side and doesn't have an EPA. Something for me to keep an eye out for when I upgrade.

I've just ordered some of the Losi nuts so hopefully that will solve that problem.

Is it normal to have a little bit of play in all the ball joints?
(even the ones I've not been messing with)

andy reeves · #8 20-03-2013

Check that the servo horn isn't catching on the nose cone. Mine was and with a little work with the dremel I was able to get full lock.

adon30 · #9 20-03-2013

Quote:

Originally Posted by andy reeves

Check that the servo horn isn't catching on the nose cone. Mine was and with a little work with the dremel I was able to get full lock.

Forgot about that one as well. Well remembered Andy. It only needs a small bit removing.

I checked my tx settings today and the EPA was set as right 93% and left 118%. This is the only way I could get full lock to lock. Before adjusting the servo arm I couldn't get full left. The EPA Max's out at 120% so you can see how close it is for me even with all the adjustments available.

MrSlow · #10 22-03-2013

Thanks for more excellent advice.

I've checked and the servo horn is missing the nose cone, but I'll remove a little just in case.

It looks like I'll have to upgrade my tx to one with EPA. I've been looking at a Spektrum DX3C, but do you have any recommendations?

It's my first race with the H2 tonight. Can't wait to see how it goes.
I suspect the weakest link will be me