suspension problem

[miams]

I have a suspension problem for my Ofna OB4 nitro.
I use hard front springs and soft (or medium) springs in the back.

When I lift the front of the car with the tip of a screwdriver then the left wheel goes up first and is already 2 a 3 mm up before the right wheel goes up. The same happens with the rear of the car. They should lift without difference. (This was with brand new wheels and tyres.)

Camber and toe-in are the same left and right for the front and the back.

What could be the problem?
I checked the length of the shock but thats ok, camber and toe-in are ok....

[RCRACER2471]

You have aluminum threaded shocks. Did you check to make sure that there all adjusted at the same rate. A couple of turns can make a difference......

[MAXX 2.5]

also check your droop if you have it, you might want to invest in a team losi shock matching tool as well

[SteveK]

- Measure the length of your springs, and if one is shorter you can compensate by pre-loading that side.

- Is the car ready to run when you check this, or is one side heavier than the other? Fill the tank and everything else before checking this.

- Make sure the shocks are in the same holes on each side.

A set of precision calipers wouldn't be a bad idea: You can use it to check shock lengths, pre-load, you can set the chassis on level blocks and check droop, and more. Even if you just use it like a set of dividers, making sure a measurement is the same from one side to the other, it's better than a ruler.

The digital kind is obviously easiest to read, but the dial type also work well. I never could get the hang of those Vernier types.
http://www.dxmarket.com/micromark/products/82556.html

http://www.dxmarket.com/shops/micromark/images/products/82556.jpg

[InspGadgt]

I heard about a cheeper place to get em...

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=47257

little more then half the price of Micromark

[SteveK]

Good call: Glad I haven't bought one from Micromark yet (I just use an old Vernier caliper as a divider, or a set of actual dividers, since I don't race and only symetry is important to me, not the actual numbers).

[miams]

I checked the shocks: they are all the lenght left/right (full extended without spring, compressed without spring and normal with spring). I used a caliper like steveK mentioned (not a digital one).
I checked it without fuel in the tank.
And i don't now if the droop is exact on both sides.

I check it later.

[SteveK]

Check the suspension setting with fuel in the tank, maybe half a tank for a middle-of-the-run setting (One thing I like about electrcs: They don't change weight/balance throughout the run).

To check droop, set the chassis on something level like some spare truck wheels, tall enough to let the suspension fully extend. Then use that little prong that slides out of the end of the caliper when you open it up and rest the edge of the ruler on the axle. I butt it up against the wheel hex for a consistent measurement all the way around.

Use that caliper to double-check the actual length of the springs: They can be slightly different lengths sometimes.