| Author | Message | ||
     Ynik Bells (Ynikbells) New Member Username: Ynikbells Post Number: 2 Registered: 03-2003 |
AFTER FITTING 275/70/16 TYRE ON MY DISCO IT TENDS TO CHOSE THE DIRECTION IT WANTS TO TRAVEL AFTER HITTING A BUMP. ANY INPUT WILL BE APPRECIATED ON HOW TO PREVENT THIS. | ||
| gp (Garrett) Senior Member Username: Garrett Post Number: 1860 Registered: 10-2001 |
how many miles on truck? new steering dampener might help. | ||
| Milan (Milan) Member Username: Milan Post Number: 143 Registered: 10-2002 |
I think you're talking about wander not bumpsteer. Wander becomes more noticeable with bigger tires, especially when width is increased. It also becomes more noticeable if your steering linkages are loose. Check your tie rod ends on the drag link and tie rods. If your truck tends to follow road imperfections but rides stragt on smooth roads, that's normal with bigger tires. Bumpsteer is caused by improper alignment of the drag link in relation to trac bar. On Discos this relation does not change even with lift unless you start making your own mounts for either of those. So, check for loose stuff and proper alignment first. Hope this helps. P.S. Maybe you can turn the caps off. | ||
| Alyssa Brown (Alyssa) New Member Username: Alyssa Post Number: 11 Registered: 01-2003 |
Oh. I thought we were talking about Bill B.'s method of off-roading with the ARB. :-) | ||
| gp (Garrett) Senior Member Username: Garrett Post Number: 1862 Registered: 10-2001 |
oh yeah and we all know your hubby should be on that list too!! lets not forget 'pop goes the window'.  | ||
| Eric N (Grnrvr) Senior Member Username: Grnrvr Post Number: 1249 Registered: 02-2002 |
Milan, I'm not sure if I'm reading you right.. Are you saying that on a Disco that you don't increase bump steer with increases in lift?? When you lift your truck you increase the angle of the cross rod from your steering arm to the rod connection on the knuckle. The more that angle changes by making your truck taller the more bumpsteer you are going to get. You will get bumpsteer in a Disco as you increase lift height (via suspension lift). | ||
| Ynik Bells (Ynikbells) New Member Username: Ynikbells Post Number: 3 Registered: 03-2003 |
THANKS FOR THE INFO GUYS. FORGOT TO ADD THESE INFO IN THE ORIGINAL MESSAGE. I DID NOT JUST PUT BIGGER TYPE, PRIOR TO THAT I'VE FITTED OME 2" COILS PLUS KONI SHOCKS FRONT AND REAR. I ALSO PUT WHEEL SPACERS 1.5 INCHES FRONT AND REAR 2 INCHES AND OF COURSE OME STEERING DAMPER. http://www.bigballsoffroad.com/category11_1.htm | ||
| Milan (Milan) Member Username: Milan Post Number: 145 Registered: 10-2002 |
Eric, You're reading me right. On the Disco the track bar and drag link start off so parallel to the axle that minor lift has little effect. At least from what I have seen. Now, to be correct, the worse thee angle gets, the more noticeable the bumpsteer may become but it still should not be too bad as if the track bar and drag link were at different angles to each other or had mount points so much off that they'd be moving in different arcs. I think in this case Ynik is seeing the effect of wider track with wider tires compared to stock. | ||
| Eric N (Grnrvr) Senior Member Username: Grnrvr Post Number: 1250 Registered: 02-2002 |
Well, with a mild 2 inch lift yes you probably won't see bump steer as much as you would the effects of your caster being messed up. However, once you start getting to the 4 and 5 inch lift height you will start to see some bump steer. When I had 3 inch springs and 1 inch spacers and re-worked arms with no aftermarket bumper or winch on the front of my Disco I had some bump steer. Now that I have some weight pushing things down a little on the front it has almost gone away. So depending on just how much lift those springs and spacers gave him, how much weight he has up front smashing them down, he could be seeing effects from his caster being off, the wider tires, and some bump steer. | ||
| Milan (Milan) Member Username: Milan Post Number: 146 Registered: 10-2002 |
If the drag link and track bar are the same length and are parallel to each other, the axle moving up and down will deflect from the center line of the vehicle but the steering will not change. So the effect will be "dog tracking" not bumpsteer. Anytime the trac bar and drag link are not quite the same length or have pivot pointa in different planes, bumpsteer will be present. I think on the Rovers it's so little that it's unnoticeable. On the other hand I never argue with hard experiences. I've experienced no bumpsteer on vehicle with 4" lift, dropped pitman arm and stock trac bar that was relocate on the axle end. This set up had all the angles all out of whack. So the bumpsteer must have been there, we just could not feel it under normal driving conditions. I've also experienced bumpsteer on a totally stock setup. If you say on LRs it manifests itself at 4" of lift I believe you. I also believe Ynik's issue is something else. Then again, I have not even seen his vehicle so my rambling serves no purpose. | ||
| Eric N (Grnrvr) Senior Member Username: Grnrvr Post Number: 1254 Registered: 02-2002 |
I agree, you would have to drive it to know.. However, I have seen that nothing is the same from rover to rover even if they are set up the same.. | ||
| Milan (Milan) Member Username: Milan Post Number: 148 Registered: 10-2002 |
" I have seen that nothing is the same from rover to rover even if they are set up the same.. " Now, that I believe for sure. It even applies to other makes. Funny, eh? |
