Who says Mogs dont flex?

[Colorado Ron]

Cool video:
http://www.vintageoffroad.com/videos/uni.wmv

[coachgeo]

If I remember right that rig of Tyson's did NOT have Mog springs and a few other minor tweaks, so it really is not a good example. Butttt.... yeah...... they flex. The Frame flex needs some heavy stuff on the back to make it happen to it's full capability though. Suspension flex is easy to see but not so w/frame flex.

[fcfred]

whatever happened to that mog? wasn't there a website all about it somewhere?

[Tyson Pfenneberger]

I ended up selling the trooper to a power line maintanance company in mexico. No body seemed to want it fully equiped, so I stripped off some goodies and let it go to some guy's who wanted it to get them where ever they wanted to go.
I then turned my attention to a more family friendly Unimog crawler project.
Unimog video web site expired some time ago when the site owner, Brian moved to Tennessee and lost interest in keeping the site up. I am not sure if he is still distributing the videos or not?
I hope this helps, Tyson

[RocKrawler]

That is the coolest thing ever... what are the specs on it - suspension changes, etc...

[UCTJ]

Thats a cool video..I got to drive a brand new single cab Mog, a friend of mine is waiting for his double cab to come in so the single cab is his loaner..must be nice:grinpimp: ...but anyway it was def. cool, and the video is badass.

[Tyson Pfenneberger]

30 deg ramp.
First and second photo with 4" Tj rear coils up front with air bags and R 9012 shocks and Aerostar rears with 15" long travel shocks modified mounts.
Third photo: same front with 4" Tj rears in the rear and R 9012 shocks, stock mounting.

[Tyson Pfenneberger]

Stock fronts and Aerostar rears.

[Puffdragon]

You got pics of the truck going up forwards with all the same spring combos?

[Tyson Pfenneberger]

here is one, still looking for others.

[dmay]

http://www.pirate4x4.com/forum/attachment.php?attachmentid=226579&d=1138421837
interesting shock mounting,got any closer pics?

Gotta do mine soon,think I'm going with ZJ napa replacement front springs and the aerostar rear,then figure out the best shock placement.

NAPA ZJ springs gave me 2 1/2 to 3 inches of front lift on my TJ,and they're progressive wound so they can be trimmed easily for ride height and have alot of windings to stretch out.

[Tyson Pfenneberger]

Will post close ups on crawler thread.

[TJ40]

That's a badass mog and awsome video. I recognize the trail (Upper Helldorado). I want to see video of that thing going through the squeeze and up the last waterfall. What happened to that?

[Tyson Pfenneberger]

Scraping by the squeeze.

[Tyson Pfenneberger]

Not quite making the fall!

[Tyson Pfenneberger]

Up the Golden crack.

[dmay]

I was sure your windshield was doomed when I watched the tapes,also,didn't a fire breakout when climbing the last waterfall?

Someone on that tape had carb issues on the waterfall too (iirc),that's why I went TBI after seeing that.

BTW,I bought my Frenchy off of Dr Dan

[Tyson Pfenneberger]

Windshield survived, Fire was contained (thankyou!) and any carburated mog will have trouble with that grade! You are wise to go with injection.
Dr Dan's Doka or one of his shorty's?

[dmay]

One of his junka's from the container shipment,swb frenchy
I need to give him a call and see if he might have a flywheel ring gear laying around,'bought every third time I try to start it I gotta get out and move the engine by hand:shaking:

[portalrover]

Not quite making the fall!
How long is the wheelbase on that Mog? I have always been intrigued at how Mogs with relatively short wheelbase,and high centre of gravity remain quite stable on steep gradients, when more conventional 4x4's rear up and fall over. Could this stability be attributed to the high degree of antisquat at the rear and positive squat at front that the so called experts criticize and hate so much?
Bill.

[Puffdragon]

uhh, you mean mogs with relativly long wheel base and low center of gravity. Most unimogs are over 113" wheel base, and the center of gravity is as low or lower than most built rigs, plus they are a bit wider. The wall climbinmg ability is probably more due to the low heavy front end.

[Discosaurus]

My 416 oil-burner Mog has, I think, almost a 70-30 front weight bias. Great for up-hill stuff but sometimes a little out of control going down - unfortunately, trails that go up, usually come back down :)

114" wheelbase - pretty optimal.

[Tyson Pfenneberger]

Most stock 404.1 are 114" The shorty's are about 106" I believe. The others 411, 421, 406, 416 seem to range all over the place. My project 421 started at 89" and I've stretched it to 109".
I attribute the abilities of the 404.1 and others to the total package. Two link torque tube suspension, heavy axles and wheels, 60/40 weight balance, enough clearance to choose good lines, barely enough power to keep it moving without getting me in trouble. I would place alot of credit on the torque tubes. Just look at the weight / force distribution as it goes vertical. It relies very little on the springs and acts like a large T bar supporting the central mass of Mog directly. I am sure the engineers would state their reasoning much different, but it works for me.
My custom 421 Jeep bodied F+R steer project is retaining the torque tubes. Much like Dr Dans rock Mog. Thanks for the inspiration Dan!

[portalrover]

The mog climbing the waterfall may have a 113 inch wheelbase, but it still looks short and high to me, but I was probably referring to the smaller 411 Mogs that I have watched on european truck trials videos. 404/406 Mogs are extremely rare here in Australia, I have only ever seen one personally.The only other Mogs in any quantity are the U1700 series that the Australian army have.
Bill.

[Discosaurus]

406's are 2380 mm or 93.7" (U900)
416's are either 2900 mm (114") or 3400 mm (134") for the LWB U1100L
U1700 (435) are 3250 mm (128")

406's can be tough on steep downhills...many owners run hundreds of kilos of tractor weights on the rear.

I carry my spare (250 lbs) on the very back of the cargo deck to help with the excessive front weight bias. When I finish my new fuel tank, it's going to be between the frame rails, as far back as possible - along with the battery (another 100 lbs).

[portalrover]

406's are 2380 mm or 93.7" (U900)
416's are either 2900 mm (114") or 3400 mm (134") for the LWB U1100L
U1700 (435) are 3250 mm (128")

406's can be tough on steep downhills...many owners run hundreds of kilos of tractor weights on the rear.

I carry my spare (250 lbs) on the very back of the cargo deck to help with the excessive front weight bias. When I finish my new fuel tank, it's going to be between the frame rails, as far back as possible - along with the battery (another 100 lbs).

Off topic I know, But what do you think about mounting the ballast weight on a conveyor belt so that you can shift it to just behind the cab for uphills and then as far back as possible when going down?
Bill

[drj]

Most stock 404.1 are 114" The shorty's are about 106" I believe. The others 411, 421, 406, 416 seem to range all over the place. My project 421 started at 89" and I've stretched it to 109".
I attribute the abilities of the 404.1 and others to the total package. Two link torque tube suspension, heavy axles and wheels, 60/40 weight balance, enough clearance to choose good lines, barely enough power to keep it moving without getting me in trouble. I would place alot of credit on the torque tubes. Just look at the weight / force distribution as it goes vertical. It relies very little on the springs and acts like a large T bar supporting the central mass of Mog directly. I am sure the engineers would state their reasoning much different, but it works for me.
My custom 421 Jeep bodied F+R steer project is retaining the torque tubes. Much like Dr Dans rock Mog. Thanks for the inspiration Dan!
Tyson lets see some more pictures of you new project. The back half looks pretty good.
dan

[Tyson Pfenneberger]

Hey Dan!
Finally found some pics of the front assembly. Still a long way to completion:( I will try to post to the project thread this weekend.

[hummog]

Excuse my ignorance, but what is referred to when someone mentions "spider frame" and what is it's purpose on the mog.

Thanks,

[ROCKDOG4X4]

Excuse my ignorance, but what is referred to when someone mentions "spider frame" and what is it's purpose on the mog.

Thanks,


I believe that the spider frame is the center socket and arms that the dump bed of a unimog sits on. The upper portion of the tipper ram sits inside the socket. The spider frame supports the bed.

Have you tried a google search?