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Unread 06-22-2013, 01:59 AM   #1
picflight
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1996 ZJ 
 
Join Date: Jun 2010
Location: Los Angeles
Posts: 59
Driving a figure 8

I have seen it mentioned before, what I do not understand is:

1) What flaw or inconsistency this maneuver exposes? And how is it exposed?
2) Where should this maneuver be performed and what should be the gear configuration?

1996 Grand Cherokee 4x4 V8 5.2L Up Country Laredo

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Unread 06-22-2013, 11:07 AM   #2
LoveHate
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if you have the all time 4x4, np249 t case then driving in a figure 8 will show if the viscous coupler is bad. if you drive in a 8 and the front wheels hop and bind then the vc is bad if everything is smooth then your vc is good.
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Unread 06-22-2013, 11:11 AM   #3
picflight
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Hop & bind, how does that feel to the driver? I guess I am asking what is hop & bind?
I am guessing this maneuver is done on a flat surface at slow speed with 4 LO engaged?

1996 Grand Cherokee 4x4 V8 5.2L Up Country Laredo
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Unread 06-23-2013, 03:12 PM   #4
Evildriver-3
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When you make a hard right turn or left you'll feel the jeep become jumpy like, or chatter like, anything other than smooth.
You most likely have awd and the 249 unless the previous owner changed it already.
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Less than 8 is like playing with half a deck
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Unread 06-23-2013, 04:16 PM   #5
LoveHate
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no don't do it in 4lo just in the regular 4 hi. if its anything but smooth that's bad.
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Unread 06-23-2013, 09:38 PM   #6
Evildriver-3
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In 4lo it doesn't have any issue making a hard turn, like if you turn the wheel full lock and try and make a circle ?
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1995 Jeep gc ltd, 2005 Jeep gc ltd , 71 Dart, 73 RR 440-6pk, 78 Mag GT, 85 Power Ram W-350, 92 Daytona, 99 Dakota, 08 Ram 2500

Less than 8 is like playing with half a deck
]=Supershafts=[
Long Island Motorsports Association
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Unread 06-23-2013, 11:27 PM   #7
picflight
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Join Date: Jun 2010
Location: Los Angeles
Posts: 59
Mine is Quadratech AWD, all stock with 195K. I did the figure 8 today in AWD mode, didn't notice anything unusual.

1996 Grand Cherokee 4x4 V8 5.2L Up Country Laredo
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Unread 06-24-2013, 08:14 AM   #8
Evildriver-3
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Did you do the turns right after starting.it up or after.you drove it and everything is warm, cold t-case won't act up, you have to be at temp and then just make any turn at full lock
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1995 Jeep gc ltd, 2005 Jeep gc ltd , 71 Dart, 73 RR 440-6pk, 78 Mag GT, 85 Power Ram W-350, 92 Daytona, 99 Dakota, 08 Ram 2500

Less than 8 is like playing with half a deck
]=Supershafts=[
Long Island Motorsports Association
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