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06-05-2018, 01:49 PM
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#31
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Senior Member
Join Date: Jul 2011
Location: Flagstaff, AZ
Posts: 2,001
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Quote:
Originally Posted by boywonder
I've found that after 3 links on the chains it gets sketchy for the main springs....for the helper springs...slide the helpers forward until they touch the crossbar and make some blocks to take up the space...in my van around 3" but it depends on the vintage of the springs and spring retaining plate.
You can make blocks longer so that the helpers are always compressed a little even with the top up, but at some point those retaining plates won't hold the compressed spring in place with the top down.
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Cool, thanks! I'll give it a try. It was pretty easy taking out the links. I'll give it a go by cutting blocks from a piece of 2x2.
__________________
2005 E350 RB 6.0 PSD for extended fun
1989 Landcruiser FJ62 for local fun
2011 VW TDI Golf for hwy fun
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06-05-2018, 03:47 PM
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#32
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Senior Member
Join Date: Jul 2013
Location: So Cal
Posts: 4,071
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Quote:
Originally Posted by JoeH
Cool, thanks! I'll give it a try. It was pretty easy taking out the links. I'll give it a go by cutting blocks from a piece of 2x2.
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Be careful using crappy 2x2 fir lumber end grain.....when the spring is compressed it's loaded pretty good. You may end up exploding the wood. I used scrap teak or cherry for the different tries....really dense grain. You could cut 2x2 fir blocks and put two side by side so the spring won't be pressing on end grain.
__________________
2008 E350 RB passenger 4WD SMB penthouse
2013 KTM 350 EXC
2008 KTM 250 XCF-W
2003 Honda Element
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06-05-2018, 05:03 PM
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#33
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Senior Member
Join Date: Jul 2011
Location: TN
Posts: 10,242
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Agreed, don’t use pine. Get a shipping pallet/skid from somewhere and cut pieces from that. They are typically made of hardwood.
Sent from my iPhone using Tapatalk
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06-05-2018, 07:23 PM
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#34
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Senior Member
Join Date: Jul 2011
Location: Flagstaff, AZ
Posts: 2,001
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Quote:
Originally Posted by boywonder
Be careful using crappy 2x2 fir lumber end grain.....when the spring is compressed it's loaded pretty good. You may end up exploding the wood. I used scrap teak or cherry for the different tries....really dense grain. You could cut 2x2 fir blocks and put two side by side so the spring won't be pressing on end grain.
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Ah good to know. Thanks!
__________________
2005 E350 RB 6.0 PSD for extended fun
1989 Landcruiser FJ62 for local fun
2011 VW TDI Golf for hwy fun
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06-18-2018, 05:42 PM
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#35
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Senior Member
Join Date: May 2017
Location: San Clemente, CA
Posts: 428
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Anyone have a part number or dimensions of the helper springs people have been talking about. My top does not have any and I would like to try and add them.
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06-18-2018, 09:57 PM
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#36
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Senior Member
Join Date: Jul 2011
Location: TN
Posts: 10,242
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I would say those would be an SMB only item. You're saying there are no springs under the upholstery laying in tracks behind your top's rear X-frame piece? Never seen it.
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06-19-2018, 06:40 AM
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#37
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Senior Member
Join Date: Jul 2013
Location: So Cal
Posts: 4,071
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Eric: BenJJ transplanted a pre-'92 top to his van....so maybe no helper springs back in the day....
Ben: The helper springs seem to be all over the map....mine are around 23" long with a rate of 12 lbs/in; I think Mountainbikeroamer's are way shorter. I pulled one out and measured it the other day because I'm toying with the idea of replacing them with gas struts. Perhaps you should consider this mod too......I'm sure your brother can help with the design.
__________________
2008 E350 RB passenger 4WD SMB penthouse
2013 KTM 350 EXC
2008 KTM 250 XCF-W
2003 Honda Element
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06-19-2018, 08:43 AM
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#38
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Senior Member
Join Date: May 2015
Location: San Clemente, CA
Posts: 552
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I told him just to get stronger haha.
Old roof with solar and no helpers is no joke, super heavy. And thats before the cargo box goes up top haha.
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06-19-2018, 09:07 AM
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#39
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Senior Member
Join Date: May 2014
Location: OrangeCounty, CA
Posts: 1,275
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Hey BenJJ ---
If you don't get some spring measurements from someone else here sooner:
>> I'll be digging back into my penthouse roof's helper springs by this weekend, as I'm re-installing the wooden shims (that I had just recently removed) that were originally installed behind those helper springs.
I can get some photos of the entire helper spring setup / get some measurements of those springs while it's apart. (The diameter is pretty easy to figure for yourself already --- they're basically **just** narrow enough to fit into the C-channel that all the penthouse roof x-brace bottoms slide fore/aft within.)
__________________
Mike T
___________________
'95 Ford E250 RB30 PH
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06-19-2018, 09:33 AM
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#40
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Senior Member
Join Date: May 2017
Location: San Clemente, CA
Posts: 428
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Quote:
Originally Posted by boywonder
Eric: BenJJ transplanted a pre-'92 top to his van....so maybe no helper springs back in the day....
Ben: The helper springs seem to be all over the map....mine are around 23" long with a rate of 12 lbs/in; I think Mountainbikeroamer's are way shorter. I pulled one out and measured it the other day because I'm toying with the idea of replacing them with gas struts. Perhaps you should consider this mod too......I'm sure your brother can help with the design.
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Thanks for the spring specs, I will start looking around for something similar. Keep me posted on the gas struts, it sounds pretty intriguing.
Quote:
Originally Posted by bemerritt
I told him just to get stronger haha.
Old roof with solar and no helpers is no joke, super heavy. And thats before the cargo box goes up top haha.
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Yeah it's doable right now, but not as easy as it should be. With more weight being added I will definitely need the helper springs.
Quote:
Originally Posted by MountainBikeRoamer
Hey BenJJ ---
If you don't get some spring measurements from someone else here sooner:
>> I'll be digging back into my penthouse roof's helper springs by this weekend, as I'm re-installing the wooden shims (that I had just recently removed) that were originally installed behind those helper springs.
I can get some photos of the entire helper spring setup / get some measurements of those springs while it's apart. (The diameter is pretty easy to figure for yourself already --- they're basically **just** narrow enough to fit into the C-channel that all the penthouse roof x-brace bottoms slide fore/aft within.)
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That would be awesome. I understand the general concept but pictures of the whole setup would be very helpful.
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