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PointedThree :  Vans, Trucks, SUVs and Other Forums : G-Class : Ladder mounting

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Ladder mounting
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Posted 7/10/2007 7:32 AM
Dr. Rob
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Date registered: Nov 2006
Location: Stockholm, Sweden
Vehicle(s): 280GE LWB, 280E Ambulance
Posts: 216
100
Ladder mounting


So I made a roof rack. Then I decided to make a ladder too. One that fits on the back panel, to the right of the door.

Made a nice custom fit, followed all the body angles, square and parallell to all contours... good enough. (I work with this sort of thing; i'm pretty good at it)

First I made a mounting bracket that clamps in the rain gutter as per a roof rack, and let the ladder go down to the bumper, where I planned to mount rubber isolators for compensation of body movement.

BUUUUUUUUT as is my habit I started getting all picky... I don't like that design anymore.

What is to stop me from making a nice custom fit to the body, and just mounting directly to the body? You know, the sheet metal is pretty steady top and bottom... why don't I just poke some nice popnuts in there, say four or six, maybe use a big washer on the back side, seal them around the edges with some silicone... It would be so CLEAN.

Yeah, I know.. drilling holes in the body, bad... Well, so what? Automobile bodies are full of holes already. Just do a good 'n' proper job of it.

Not sure why I'm asking really... Any thoughts?
.

#81705
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Posted 7/10/2007 8:30 AM
Inkblotz
Expert




Date registered: Apr 2006
Location: Georgia
Vehicle(s): 90 300GD "Thundering Turtle II", w/ 603A turbo
Posts: 3186
2000
RE: Ladder mounting

I say go for it. Just don't hit it with a little silicone. Thoroughly prime and paint the drilled holes prior to install. Then apply the silicone to keep it from flexing and rubbing the paint off.

Post some pics.
Good luck

Mark
#81707 - in reply to #81705
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Posted 7/10/2007 9:56 AM
Braingears
Expert




Date registered: Apr 2006
Location: St Petersburg, FL
Vehicle(s): G320 & ML320
Posts: 1450
1000
Re: Ladder mounting

Any Pictures???
#81719 - in reply to #81705
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Posted 7/10/2007 9:59 AM
KERR

Date registered: Dec 1899
Location:
Vehicle(s):
Re: Ladder mounting

Im with Braingers on this one!

I have seen a few G's with the ladder attached to the body. Ill look threw my files and see what i can find. From memory there where holes drilled threw the body. Then a plate was on the inside of the body pannel that help support the weight..

For the long run i like your idea of bumper mount better. You could always change how it mounts to bumper.
#81720 - in reply to #81705
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Posted 7/10/2007 10:25 AM
hipine



Date registered: Jul 2006
Location: US, CO, Bailey
Vehicle(s): 460 1980 280GE w. 617A
5000
RE: Ladder mounting

My thoughts are this.  If you want to go into the body with something that will support 200 lbs plus, don't do it with riv-nuts alone.  Here's how I'd do it.

Remove the interior trim panel that covers the rear panel.  Inside there you'll find a REALLY sturdy area where the flanges of the panels that form the upper rear body and the the fuel filler panel come together.  Make a piece of angle, maybe 1/8" stainless steel, to fit the top face of that flange and the inner face of the upper rear body panel.  Drill thru and weld some nuts to the inside of the vertical part of the angle and then drill holes through the horizontal part of the angle piece and the body flange to fix the the angle to the body flange.  Mark and drill holes through the body to match the locations of the nuts on the vertical part of the flange.  Paint the edges of your new body holes with POR15 or something good to prevent rust.  Then mount your ladder THROUGH the body to the nuts on the angleed flange.

This setup will be strong to match the rest of the G.  And you won;t have to worry about rubber isolators to the bumper or anything like that.  I'd stop the ladder above the fuel filler panel.  Step on the bumper, then on the ladder, and keep the fuel filler area free.

Those are my thoughts anyway.

All the best,

-Dave G.

#81727 - in reply to #81705
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Posted 7/10/2007 11:14 AM
fernweh



Date registered: Apr 2006
Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany
Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa
2000
RE: Ladder mounting

My 463 has a small vent screen on the right rear inside, just large enough to insert your hand and you can feel/locate a very nice sturdy bulkhead. That's the area I have mounted my ladder to it - it never moves, even with my 'slight' weight on it



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#81736 - in reply to #81727
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Posted 7/10/2007 12:25 PM
Dr. Rob
Veteran


Date registered: Nov 2006
Location: Stockholm, Sweden
Vehicle(s): 280GE LWB, 280E Ambulance
Posts: 216
100
Re: Ladder mounting

Okay, thanks.

I'll take a closer look inside and see what I can find to mount onto.

Pics, yeah sure... I'll try to get that done later today. Stand by.
#81740 - in reply to #81705
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Posted 7/14/2007 2:35 AM
Dr. Rob
Veteran


Date registered: Nov 2006
Location: Stockholm, Sweden
Vehicle(s): 280GE LWB, 280E Ambulance
Posts: 216
100
Re: Ladder mounting

Sorry for delay; it took a while to get that done. Here are a couple of almost-done pics.

I wanted to follow the general character of the G, which means no bends or curves-- the car was designed by a guy with a ruler-- and conform to the unusual angles of the bodywork.

I think I did okay. The upper fastening was a right betch to do. For some reason I absolutely refused to weld tabs onto the legs; i wanted it clean.

Regarding fastening, I used four M8 stainless rivnuts. It is rock-solid as a unit. Specifically, the nuts at ten o'clock and eight'clock positions are in the joint of two overlapping sheets of bodywork metal and are rock-solid. Nut at four o'clock is in cheesy thin sheetmetal, and nut at two o'clock is in better, more rigid sheetmetal.

Whatsmore, the nuts have a 1 mm thick flange, so at no point does the ladder actually touch the bodywork- only the four points of the rivnuts.

For the rack, I wanted something very utilitarian. Big. Flat. Square. Lots of anchor points. One level, to minimize wind drag. Not some big cage with specialized holders for everything. Not super-duper ultra strong. Just sturdy. Enough to be able to walk on, but not more.

So I came up with this.. Size is exactly the same as a standard 4 x8 sheet of plywood. Later i may add some finesse functions such as removeable corner posts, but for the time being, this is it.

Not quite done yet, but you get the idea:

Edited by Dr. Rob 7/14/2007 2:44 AM




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#82186 - in reply to #81705
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Posted 7/16/2007 10:00 AM
KERR

Date registered: Dec 1899
Location:
Vehicle(s):
Re: Ladder mounting

looks good.
#82531 - in reply to #81705
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Posted 7/16/2007 10:49 AM
Jonathan Joseph
Expert




Date registered: Oct 2006
Location: Charleston, South Carolina
Vehicle(s): 2004 G55
Posts: 1538
1000
RE: Ladder mounting

Dr. Rob,
I like your philosophy on the rack, I feel the same way, just enough not to much, the ability to customize later. I'll post some pics when I get around to building mine.

Jonathan
#82539 - in reply to #81705
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Posted 7/17/2007 5:18 PM
fernweh



Date registered: Apr 2006
Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany
Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa
2000
RE: Ladder mounting

You might want to look at these raingutter mounts, for a sturdier roof rack:

http://www.pointedthree.com/disc/forums/showthread.php?tid=8223&pos...

and also what a Hannibal Racks features - I have heard many complaints about raingutter mount without reinforcements/gussets of any kind


Karl

Edited by fernweh 7/17/2007 5:22 PM




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#82737 - in reply to #82539
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