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12-15-2012, 04:11 PM
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#1
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Member
Join Date: Jul 2012
Location: As little time in LA as possible
Posts: 34
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Probably a stupid question
I am a new 4x4 smb owner. I have previously thrashed my 2wd vehicles on 4wd roads and finally came to the conclusion that it was time for an upgrade. I've never owned or driven a 4x4 so maybe this is normal and I just don't know it but when I go into 4h when I am making tight turns my steering wheel wants to turn back and fourth on its own. I was thinking maybe I'm putting it in 4x4 wrong and that has somthing to do with it. I usually put the van in park, lock the hubs, put the van in neutral, put the van in 4h and shift back to driv and go.
Is this normal?
Am I doing somthing wrong?
Or is there somthing wrong with my 4x4?
The van steers perfectly normal in 2wd...
Kathryn
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12-15-2012, 04:19 PM
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#2
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Site Team
Join Date: May 2007
Location: Turlock Ca
Posts: 10,409
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Re: Probably a stupid question
That is normal. Sometimes four wheel drive even makes it slightly difficult to make a sharp turn. It's even worse if you have a locking differential but that is an option you have to ask for.
Dave
__________________
2006 Ford 6.0PSD EB-50/E-PH SMB 4X4 Rock Crawler Trailer
Sportsmobile 4X4 Adventures.......... On and off road adventures
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12-15-2012, 04:25 PM
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#3
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Site Team
Join Date: May 2007
Location: Southern New Mexico
Posts: 10,179
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Re: Probably a stupid question
One nice advantage to having an Atlas transfer case is that you can disengage the front axle for sharp turns.
Herb
__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
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12-15-2012, 04:37 PM
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#4
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Site Team
Join Date: May 2007
Location: Turlock Ca
Posts: 10,409
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Re: Probably a stupid question
With my atlas, I can go in and out of 4x4 high at a reasonable speed. I usually find that a slow roll helps the to engage both the low range and the 4x4 stick. (Some conversions only have one stick though)
__________________
2006 Ford 6.0PSD EB-50/E-PH SMB 4X4 Rock Crawler Trailer
Sportsmobile 4X4 Adventures.......... On and off road adventures
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12-15-2012, 05:18 PM
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#5
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Senior Member
Join Date: May 2007
Location: Washington - Ridgefield
Posts: 4,728
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Re: Probably a stupid question
Kathryn,
There is no such thing as a stupid question, as long as you don't know the answer just ask away. AS you can tell, this site is a wealth of information and no one will make fun of you for asking.
Mike
__________________
Alaska to Key West, Labrador and more
Prostate cancer survivor. See Thread Prostate cancer and Sportsmobiles
2015 VW GTI 2020 Fiat 124 Spider
2012 E250 Hitop camper
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12-15-2012, 05:41 PM
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#6
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Senior Member
Join Date: Dec 2011
Location: Washougal, Wa
Posts: 1,047
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Re: Probably a stupid question
Kathryn
When you have your vehicle in 4 wheel drive a couple things come into play that make the steeering feel kind of wonky. The first is your steering tires are trying to pull you through the turn. In a turn the front end and the rear end don't follow the same exact path. In effect they are traveling a slightly different distance through the turn. Since the drive system is locked into 4 wheel drive the front traction tire and the rear traction tire need to keep the same RPM or cover the same distance in a turn. The front end covers a slightly greater distance in the turn than the rear end. In order to cover the different distance at the same PRM the front tires have to break traction on the road. When you are on pavement or a hard surface where there is good traction the need to "slip on the road" makes the steering feel very strange. It doesn't feel as funky if you are on something with less traction. If you play around in 4-low this wonky steering feeling gets a lot worse. Throw locking differentials into the mix and the feeling gets even stranger.
Long story short it's normal.
__________________
John
Gnarvan 1992 E350 Clubwagon
Advanced 4WD Systems Conversion
Sotar Legend 12.5' X 22" Cataraft
2003 BMW R1150GS-Adventure
2013 BMW R1200GS-Adventure
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12-17-2012, 10:34 AM
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#7
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Senior Member
Join Date: Oct 2007
Location: Azusa, California
Posts: 1,092
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Re: Probably a stupid question
Kathryn ,
Gnarvan is right about the achieved pulling tires as apposed to free rolling tires and the lower the gear the more that you will sense this change in the feel of your steering .You will get to where you will know when your front end is engaged just from the feel ! and in some scenarios you will will feel a sense of relief from this different feeling . Just remember not to grip the wheel Tightly while you are in Four Wheel Drive as you can experience enough Torque to injure your Wrists and or Fingers . When we first got our SportsMobile I had my Bride behind the wheel so that she could practice driving , shifting and getting the overall feel of how everything felt , her first comment was not unlike your posting with regard to her sensations . At one point while in Low Range and Lockers engaged on a berm sided one lane road she experienced a young man coming at us in a Trophy Light type truck at a high rate of speed , she panicked a little and said where can I go to which I replied just turn left up and over the 18" Berm , the next thing that I heard was the sound of her beautiful head hitting the driver side window with enough force to Daze Her ! So don't grip your wheel to tightly with the front end engaged !
Greggd
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12-17-2012, 11:37 AM
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#8
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Senior Member
Join Date: Mar 2011
Posts: 126
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Re: Probably a stupid question
Just curious.
What year is your Sportsmobile and who did the 4x4 conversion?
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12-22-2012, 12:59 PM
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#9
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Member
Join Date: Jul 2012
Location: As little time in LA as possible
Posts: 34
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Re: Probably a stupid question
Thanks everyone! Just got back from 5 days in Death Valley and did some easy 4x4 roads with no problems.
Bmwbilo, my van is a 2003 with 4wd by advanced 4x4 in slc
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12-22-2012, 08:06 PM
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#10
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Senior Member
Join Date: Mar 2011
Posts: 126
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Re: Probably a stupid question
Quote:
Originally Posted by Kathryn
Thanks everyone! Just got back from 5 days in Death Valley and did some easy 4x4 roads with no problems.
Bmwbilo, my van is a 2003 with 4wd by advanced 4x4 in slc
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I'm sorry
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