View Full Version : Rollover Video
BobnJeep
02-19-2005, 12:59 PM
http://users.verdeonline.com/ace/jeep/roll.htm
JamesT
02-19-2005, 04:34 PM
My goodness, he was lucky his leg didn't get smashed.
That is just one more reason those guys at WEROC had those little winches hooked up to there axles from the frames.
jeep4offrd
02-19-2005, 06:50 PM
That is one lucky S.O.B.
My breath stopped when I saw that leg coming out.
Bruce
BobnJeep
02-19-2005, 09:22 PM
I think the first reaction for everyone, when falling, is to try to stop it. Wether you are in a vehicle or just drunk (or drunk in a vehicle) your first instinct is to protect yourself. So, I would say that, for some newbies, it would behoove them to have some sort of door or block to stop them from sticking a foot out. It would make a fun roll over a not so fun rollover with the added inconvienience of a compound fracture or amputation w/o anestesia (sp Dragonfly?)
It didn't look like the rollbar was a very good one, allthough I guess it did it's job. Is that typical damage in that kind of roll?
skruize
02-19-2005, 10:28 PM
Ouch! He's lucky. I bet he opts for a better rollcage during the rebuild.
DsrtJeeper
02-19-2005, 10:31 PM
I think the first reaction for everyone, when falling, is to try to stop it. Wether you are in a vehicle or just drunk (or drunk in a vehicle) your first instinct is to protect yourself. So, I would say that, for some newbies, it would behoove them to have some sort of door or block to stop them from sticking a foot out. It would make a fun roll over a not so fun rollover with the added inconvienience of a compound fracture or amputation w/o anestesia (sp Dragonfly?)
It didn't look like the rollbar was a very good one, allthough I guess it did it's job. Is that typical damage in that kind of roll?
One of the reasons i've requested tubed half doors for when our doors are removed.
What kind of cage is that ?? Can somone blow up the picture and see what is laser cut into the tabs near the dash ??
Never mind, it says ORF :eek:
DsrtJeeper
02-19-2005, 11:07 PM
Yeah; the ORF cage has always looked cheesy to me. Gotta love the axle wrap/telltale leaf spring bounce on that little lip. ;)
BobnJeep
02-20-2005, 02:06 AM
So thats what "Axle Wrap" does? I been researching this SOA I'm going to do and one of the sites was talking about that. Hmmmmm, better install a good cage when we do this :eek: The guy who is doing the SOA with me has a fabrication shop up here in Chino Valley. He has done mostly custom exhaust systems, so I'm hiring him to do the exhaust, but he says he has done many an SOA, and roll cages too, I need all three in my Waggy.
Go see Mike at Protofab in Cortes Junction. http://protofab4x4.com Tell him DaveO from the XJ club sent you..
Mike is a really standup guy and Does awsome work..
Later
DaveO
DsrtJeeper
02-20-2005, 06:57 AM
So thats what "Axle Wrap" does? I been researching this SOA I'm going to do and one of the sites was talking about that. Hmmmmm, better install a good cage when we do this :eek: The guy who is doing the SOA with me has a fabrication shop up here in Chino Valley. He has done mostly custom exhaust systems, so I'm hiring him to do the exhaust, but he says he has done many an SOA, and roll cages too, I need all three in my Waggy.
Bob;
There are ways around axle wrap and wheel hop. A standard traction bar in the rear is a beginning. A thicker/stiffer leaf pack in the rear will help also. You could do a 4 link in the rear with leafs like 4 Wheelers did on their orange YJ. Very trick!!! Last but not least; convert the rear to a 4 link coil setup like Troy has done for several members. This works extremely well combined with leafs up front. ;)
Linda
02-20-2005, 08:40 AM
So thats what "Axle Wrap" does? I been researching this SOA I'm going to do and one of the sites was talking about that. Hmmmmm, better install a good cage when we do this :eek: The guy who is doing the SOA with me has a fabrication shop up here in Chino Valley. He has done mostly custom exhaust systems, so I'm hiring him to do the exhaust, but he says he has done many an SOA, and roll cages too, I need all three in my Waggy.
We have been working on a traction bar for the Willys for quite some time. There are some really good examples out there. There are also some really bad examples. The longer wheelbases have different issues than SWBs. Research this one very carefully.
I have been looking at using a slider using a nylon or bronze bushing instead of the usual rod-end or johnny joint connection on the cross-member end of the bar. There are only a few examples of this style that I have found: Spohn Performance makes a traction bar for Mustangs, and Daystar's Four Real Steel line-up just introduced one for the Ford Super Duty (you don't want to know the price).
BobnJeep
02-20-2005, 11:32 AM
Anti Axle Wrap Setup (http://www.4x4wire.com/jeep/tech/susp/axlewrap/soa14.gif)
A Ladder bar is a triangle formed by two long rods and the mount for the axle end. Because the ladder bar is rigid and firmly attached to the axle it doesn't depend on the springs for triangulation. Axle wrap can't occur if the end of the ladder bar away from the axle is held at a steady height because this prevents the axle from rotating and prevents the pinion angle from changing. The springs can't go into an "S" shape unless the pinion angle rises. This is probably the simplest system that will control axle wrap.
I've got a swing shackle on the leading edge of my ladder bar to allow it to follow the arc of the springs and prevent binding, and I've got a threaded portion to prevent bind as the axle articulates. Although the shackle can swing forward and back a few inches, it holds the forward end of the ladder bar at the nearly the same height throughout it's swing. The shackle moves less then an inch forwards and backwards throughout the entire travel of my suspension. I've done ramp testing with the ladder bar on and off and found no measurable difference. In theory there should be some bind because the forward edge of the ladder bar is held at a constant height by the shackle and this forces the pinion angle to change in a controlled manner as the axle droops. Ramp testing with the shackle disconnected showed that the forward end of the bar tended to stay within a few inches of the height where the shackle would hold it throughout the range of suspension travel, the bind is so minor that it affects nothing. Your results will vary in this depending on the design of the bar, the mount, and the suspension geometry on your vehicle.
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