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Good Engineer in SA?

Posted: Mon Feb 06, 2006 7:53 am
by patrolpaul
Does anyone know of a good engineer in SA? I have a lift kit on my Patrol Wagon and would like to get it engineered ASAP. What do they look for?

Posted: Mon Feb 06, 2006 10:54 am
by murcod
Paul try Emailing Transport SA (from the link on their website) and they should be able to Email you out a list of approved engineers.

BTW you may not be so keen on doing it legally once you talk to an engineer........ I gave up on trying to get 36mm larger diameter approved.

Posted: Mon Feb 06, 2006 11:51 am
by patrolpaul
Thanks. I have just spoken to an engineer and he has said that what I have done will be able to get engineered if I can fix the "bump steer alignment". Does anyone know what he meant by that? I know that because the vehicle is higher that the steering wheel is in a different position. He has told that I can't just take the steering wheel off and square it up, I need to actually fix the problem. Any sugestions would be greatly appreciated.

Posted: Mon Feb 06, 2006 12:01 pm
by chimpboy
patrolpaul wrote:Thanks. I have just spoken to an engineer and he has said that what I have done will be able to get engineered if I can fix the "bump steer alignment". Does anyone know what he meant by that? I know that because the vehicle is higher that the steering wheel is in a different position. He has told that I can't just take the steering wheel off and square it up, I need to actually fix the problem. Any sugestions would be greatly appreciated.
Weird use of terms but I would be thinking he is talking about castor correction. Castor is affected by suspension lift making the vehicle more susceptible to bump steer, but doesn't affect steering wheel position when you're pointing forward.

I could be wrong, but that's my guess.

Jason

Posted: Mon Feb 06, 2006 12:18 pm
by bad_religion_au
chimpboy wrote:
patrolpaul wrote:Thanks. I have just spoken to an engineer and he has said that what I have done will be able to get engineered if I can fix the "bump steer alignment". Does anyone know what he meant by that? I know that because the vehicle is higher that the steering wheel is in a different position. He has told that I can't just take the steering wheel off and square it up, I need to actually fix the problem. Any sugestions would be greatly appreciated.
Weird use of terms but I would be thinking he is talking about castor correction. Castor is affected by suspension lift making the vehicle more susceptible to bump steer, but doesn't affect steering wheel position when you're pointing forward.

I could be wrong, but that's my guess.

Jason
isn't bump steer to do with pitman arm or drag link, or tie rod being not being close to parallell to the axle line due to the extra height of the lift.

i think it's the tie rod (from pitman arm to knuckle arm). this contributes to bump steer, and also makes your steering wheel off center due to the arm being too short after the lift... and i think you fix it (get it paralell) with a dropped pitman arm... this is all from memory

to get your steering wheel straight, you can just wind out the tie rod, but it won't help bump steer i don't think

Posted: Tue Feb 07, 2006 8:59 pm
by -Scott-
bad_religion_au wrote:isn't bump steer to do with pitman arm or drag link, or tie rod being not being close to parallell to the axle line due to the extra height of the lift.

i think it's the tie rod (from pitman arm to knuckle arm). this contributes to bump steer, and also makes your steering wheel off center due to the arm being too short after the lift... and i think you fix it (get it paralell) with a dropped pitman arm... this is all from memory

to get your steering wheel straight, you can just wind out the tie rod, but it won't help bump steer i don't think
What he said. :D

I think this is pretty close to the mark - adjustments won't fix it, you'll have to spend some more money.

Scott

Posted: Wed Feb 08, 2006 11:36 am
by patrolpaul
A few more dollars after what has bee spent so far is worth it to make it legal. Now just to find out a way of spending more without the wife finding out :twisted: