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Old 04-26-2018, 01:05 PM   #1
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Leveling the bus before raising the roof?

Hey Everyone,

I set out this morning to level my bus before moving forward with the roof raise.

As I started jacking the bus up it creaked and groaned in protest. I heard creaking sounds from multiple points in the frame & body.

That got me wondering if, by jacking it up, I am putting stresses on the body that are different than what it sees in a "normal" at rest condition. If so, is that going to cause issues with the roof raise?

I got to thinking about it and am questioning the merit of leveling the bus in this manner.

How many of you did or did not level your bus up before doing your roof raise?

Would you do it the same way again or not?

Thanks.

S.
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Old 04-26-2018, 02:24 PM   #2
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I think when you are jacking it up you are moving the bus at one corner or point at a time.. in the real world, the bus generally is moved and lifted with a a somewhat equal force o nthe frame / body all around.. even if you drive up on a curb, the springs absorb some of the difference in terrain for that one wheel..

it seems fairly common from what im reading for people to level out their busses for a raise.. for one you can use standard gravity-based levelling tools to make sure things are as square as you can when doing the lift and wleding in the new supports.. I would only support the bus on the frame and not on the body.. this allows the body to sit on the frame as it normally would.. just level now and not twisted or tilted..
-Christopher
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Old 04-26-2018, 02:42 PM   #3
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Originally Posted by PNW_Steve View Post
Hey Everyone,

I set out this morning to level my bus before moving forward with the roof raise.

As I started jacking the bus up it creaked and groaned in protest. I heard creaking sounds from multiple points in the frame & body.

That got me wondering if, by jacking it up, I am putting stresses on the body that are different than what it sees in a "normal" at rest condition. If so, is that going to cause issues with the roof raise?

I got to thinking about it and am questioning the merit of leveling the bus in this manner.

How many of you did or did not level your bus up before doing your roof raise?

Would you do it the same way again or not?

Thanks.

S.
I leveled mine. No noises, creaks, groans or anything. I just jacked each corner accordingly till it was as level as I could reasonably get it.
I'd do it again for sure.
I think BB's must be a bit flimsier or more flexible as MuddaEarth's seemed to have settling/sagging issues but my Ward/AmTran did not. At first he didn't use any bracing or leveling and his bus did sag after cutting the top off. The front bowed down IIRC.
Just my thoughts on it.
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Old 04-26-2018, 03:11 PM   #4
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We leveled our dognose bus before the roof raise. Drove it onto blocks to get in the ballpark of "level" and then braced the frame with jacks underneath. Was nice to have a concrete pad to do it on. Worked out well not having anything move around. No strange noises...except the echo of the sawzall once i got started!
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Old 04-26-2018, 03:25 PM   #5
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We leveled our dognose bus before the roof raise. Drove it onto blocks to get in the ballpark of "level" and then braced the frame with jacks underneath. Was nice to have a concrete pad to do it on. Worked out well not having anything move around. No strange noises...except the echo of the sawzall once i got started!
Man, if you've got any pics of that you should put em in a thread somewhere! roof raise pics are like porn on this site!
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Old 04-26-2018, 03:33 PM   #6
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Where are you jacking and bracing, the body or the frame? You should use 4 corners of the frame or under suspension points to get the whole bus off the ground or level without tweaking the body on the frame.
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Old 04-26-2018, 03:35 PM   #7
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Mine is fairly level as it sits.

Side to is almost spot on. Fore and after it is off about 1/2"-3/4" over the length of my 6' level.

Anyone here that did not level their bus before raising the roof?
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Old 04-26-2018, 03:37 PM   #8
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Where are you jacking and bracing, the body or the frame? You should use 4 corners of the frame or under suspension points to get the whole bus off the ground or level without tweaking the body on the frame.
I was jacking under the frame rails. I was really surprised at how much noise it made.
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Old 04-26-2018, 03:44 PM   #9
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Here's a bluebird roof raise.
I just tweaked his method with a few improvements and improvisations.
But mine wasn't a BB.

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Old 04-26-2018, 03:51 PM   #10
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Man, if you've got any pics of that you should put em in a thread somewhere! roof raise pics are like porn on this site!
I will try to get some pics on here in the next day or two.....been lurking in the shadows quite a while
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