Steering Questions

I've already rebuilt the steering box and drag link. I've also put new inner and outer tie rods. It still has a bad shudder/shimmy once its up around 55. I don't drive it at highway speed often so I've just recently noticed a few issues. It has a bad vibration through the steering wheel, front end feels like basketballs, and near as I can explain it, a rolling over on the passenger front feeling. Almost like if you drew a 45 degree line off the corner of the fender, it feels like its trying to go that way on its nose. Wheel bearings feel good but I'm going to replace them along with kingpin bearings. Any other paths I could follow on my way to a manageable highway ride? Tires are new, double checked on balance, and with proper PSI.

Also, once this is fixed, I want to put a steering stabilizer set up on. If anyone could post a picture of their setup and mounting points I would appreciate it.

 

I had bad vibrations around 145 mph I don't know why... so I added some oil in the steering box. And it works well.
Ho sorry I made a mistake, it was 14mph I believe that I never get at 45mph with my Hurricane.

 

A steering stabilizer just masks other problems. If every thing is in good condition, you should not need one.

I would not condemn the king pin and wheel bearings until I had inspected them. No need to replace parts unless they are needed. You can adjust the kingpin pre-load as described in the FSM. It is adjusted with shims under the kingpin bearing caps. I would also check that the toe-in is correct, and the tires are balanced.

 

I would have toe in checked . by correct psi on tires . 25-30 or more

 

Tire Balance...........

 

Lots of possibilities here. Kingpin bearings not preloaded correctly, wheel bearings loose, tires out of round, flat spotting, or balance issues, spring bushings worn, spring U-bolts loose, bad shocks or shock bushings worn, steering column bushings/bearings worn, tie rod ends, caster off, toe not set correctly, list goes on. I'd suggest a systematic approach to checking all these items one at a time and making sure all is ok before arbitrarily throwing parts at it.
Tire size and wheel width/offset can affect this as well.

 

Make sure you use a shop to balance your tires that has a balancer that has the capability to balance the inside and outside of your tire seperately (a dynamic balancer vs. static). A tire could theoretically show no imbalace on a cheaper machine, but could have massive imbalace in a diagonal fashion. The inside front and outside rear of a tire could need weights to keep it from wanting to wobble.

Also, a massively out of balance brake drum can have the same effect as an unbalanced tire.