Alu-Innovations Pop Top Installation (1 Viewer)

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Figured I'd see if I could compile some of the installation information into one thread, outside the group-buy thread.

Draft of @prwillard2 's installation document in this post.


Email from @svsisu and notes from him.

I used an electric caulk gun, 10-12 tubes of adhesive, and electric shears. I used both the Mission 4x4 installation document, and some info from the Alu-cab installation documents and a few DIY youtube videos to come up with the best method for me. The Alu-Cab document has steps that do not apply to our installations (mainly dealing with the internal brackets), but there are some good tips. There are at least 3 Alu-Cab documents that have probably evolved as the tops have changed.

This is an older one, but I like the "Job Card" on P6:
https://www.alu-cab.com/wp-content/uploads/2019/01/Hercules-Fitment-Instruction-2.pdf

Newer:
https://www.alu-cab.com/wp-content/...78-Series-Fitment-Instructions-compressed.pdf

I had previously done a bunch of rust repair in my gutters and sidewalls of the roof. My gutters were nearly full with new seam sealer after the repairs. I'm not sure if this is why I had some minor fitment issues or not. I do feel it is asking a lot of Alu-Innovations to expect a custom top to fit a range of vehicles from a 40 year time span and not have some idiosyncrasies/fitment issues come up.

Some notes on caulking- use lots of good painters tape (3M blue 2095) to keep adjacent surface clean. Put more caulk in the corners (especially at the windshield corners) than you think you would need. And, I would suggest doing two thick lines on the roof body, one down low near the gutters and one up near your fresh cut line. Also caulk the inside of the pop top. You want good squeeze out from the lower edge of the top. Don't try to clean this up, let cure, then cut and peel dried caulk with a razor knife. Then go back and back fill the gutter and roof joint with more caulk, applying caulk in 3 foot sections and smoothing/removing excess using mineral spirits and gloved finger. Lots of small pieces of paper towel are good for cleaning caulk off gloved finger. Have paper towels pre-torn into small pieces at the ready, and have trash bucket at hand.

I ran into some problems with fitment and needed to "persuade" the front corners with a small dead blow (~2.5 lbs) hammer, to bend the corner pieces in toward the body of the truck. Wait until you have set the roof and the adhesive has cured some before drilling and mounting internal brackets. More on this later.

I have a bunch of photos I took while doing my install, I'll email you some so you can see the different steps. I like looking at photos; hopefully it helps you in some way.

I did the install over a couple of days- marked and taped cut line, cut roof, cleaned out "inaccessible interior areas" with compressed air, cleaned cut surface with degreaser, painted (2-3 coats) cut edge with rustoleum, fluid filmed "inaccessible interior areas", wiped down areas where caulk goes (both pop top and roof sides) with degreaser/dewaxer, lightly sand truck body where adhesive goes, wipe down again with degreaser/dewaxer, dry fit pop top (I had to manually manipulate drivers side front corner with dead blow hammer and "bend" it closer to body), taped off pop top and truck body, blocked pop top above roof, caulk, caulk, caulk, lower roof into place, clamp and wait, let caulk dry then cut excess squeeze out with razor knife, back fill gutters (do in small sections ~2-3 feet at a time and smooth with glove finger and mineral spirits) and any areas where there was not squeeze out. Do interior clamps/mounts after top is set.

None of the holes drilled in my clamps matched up with the troopy captive nuts, they all needed to be egged out to fit. Also, the side bends on my brackets interfered with the flashing closure pieces and need to be modified- I still have not done this, and am cruising with out the closures in place. I don't know if this is due to poor QC on their part or just tolerance differences in 30+ years of troopy manufacturing. Not a big deal, just small hurdle. I had set and drilled the holes for the brackets when I did the dry fit, and this turned out to be a mistake, as the pop top final fit ended up in a slightly different (better) position from when I dry fit it and I had to re-work the holes I drilled. This is why I suggest you don't fool with the brackets until the top is glued and clamped in place. They are a bit of a PITA. You have to drill a hole for the lower bolt on the rear latch brackets. Don't forget to caulk/seal both mounting holes for the rear brackets.

Also, I fit the awning brackets and drilled the holes in the pop top, but did not mount the brackets to the top, prior to installing the top on the truck. I think you have to mount the brackets once the top is in place, because the lower bolt holes (where I think the rivenuts go) would go through the body of the truck. Thus if you fit the brackets to the top prior to top installation, the back side of the rivnuts are going to interfere with setting the pop top on the truck. Hopefully that makes sense. Be careful where you locate the front awning bracket- I placed mine just aft of where the pop top angles down towards the wind shield. My forward most bolt holes are very close to some internal bracing of the pop top making it very difficult to install the nuts. If I had fit the bracket even an inch back it would have been easier/better. It was dumb of me not to check the inside of the top where I was mounting the bracket . I didn't have any instructions for mounting the awning brackets but used instructions that I found online for Alu-cab brackets. I still do not have the brackets installed so don't know the best course of action.

https://www.alu-cab.com/wp-content/...-suit-Hercules-Roof-Conversion-compressed.pdf
I'm not sure I did everything the "right" way, but overall I'm pleased with the results. I'm still not sure if completely back filling the rain gutters is necessary or even the correct thing to do, but I think it does add an additional level of protection to the seam sealer there.
 
Some pictures of my progress.

Removal of interior bows and tearing the headliner out.
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Cutting the top of with some double-cuts mounted to a cordless drill.
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Topless Troopy. I used a small pneumatic reciprocating saw for the corner cuts.

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The top ships with these beauty strips installed, you need to open the top up in order to get to them and remove them prior to installation.
4mm Allen and a 10mm wrench.

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Test fitting. I had to remove my snorkel and pound the front right and left corners down a bit to close the gap up.

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This is the referenced gap, filled with adhesive at this point.
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Adhesive application using a cordless caulk gun. Note the tape on the gutter and top. Also the surfaces were sanded with some red scotch-brite pads and cleaned with acetone prior to taping and spooging.

Setting it down on 2x4's keeps it from moving around while you're applying the adhesive.

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Parked out of the way and clamped for the adhesive to cure. Sikaflex data sheet says cure rate is 3mm/24hours at 23c and 50% relative humidity. I let it sit for 5-days.

IMG_20240823_154818142_HDR.jpg
 
All the interior brackets that I received with my top required modification in order to get them installed.

I split one of the welds, opened up the 90 until it matched with the top brace, slotted the holes or redrilled completely new holes, some of them I cut the length down as well.
IMG_20240901_085253301_HDR.jpg

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Once I got them to fit nicely, I marked the top's brace through the bracket hole and then drilled a hole in the brace for the bracket to bolt to.
IMG_20240901_102109193_HDR.jpg


Then I re-welded the corner I cut, cleaned and painted the bracket and installed it. This was as time consuming if not more time consuming than gluing the top on...
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The last one that I installed, after I had cut all the other's down shorter, was too short to mate to both holes in the body, once I got it lined up to the top-brace, so it only has one hole bolted to the truck...🤷‍♂️
 
Next was wiring up power to the lights and usb ports. I have a 24v. truck, so I have a 12v house battery and fuse panel for my 12v. loads. I pulled a wire from my fuse panel which is up under the dash on the driver's side (LHD) along the wireway that runs under the passenger's side door scuff plate, and up the b-pillar to the the pigtail that the top comes with.
IMG_20240902_155331616.jpg

Grounded it to one of the bow-brackets.
IMG_20240902_170726601_HDR.jpg

googling told me that the blue wire is ground and brown wire is hot in Europe, so I went with that and it works, smoke-test was successful, nothing smells funny and no smoke.

The lights have white, amber and red. Cycles through in that order.
IMG_20240904_162857060.jpg
 
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The top tapers in at the front, but the supplied shelf is square and mine came pre-drilled, so I clamped it in place, put it as far forward as possible, and centered it, then marked the aluminum angle with a pencil, removed the shelf, and drilled holes for the supplied hardware.
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You really have to contort yourself to get a lot of this hardware installed...
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This shelf should have a taper in it to match the top, it would make it a lot easier to line up and install. As it is, it's thin aluminium, so I was able to make it work.
 
Next was wiring up power to the lights and usb ports. I have a 24v. truck, so I have a 12v house battery and fuse panel for my 12v. loads. I pulled a wire from my fuse panel shich is up under the dash on the driver's side (LHD) along the wireway that runs under the passenger's side door scuff plate, and up the b-pillar to the the pigtail that the top comes with.
View attachment 3719330
Grounded it to one of the bow-brackets.
View attachment 3719329
googling told me that the blue wire is ground and brown wire is hot in Europe, so I went with that and it works, smoke-test was successful, nothing smells funny and no smoke.

The lights have white, amber and red. Cycles through in that order.View attachment 3719331
I just tried to wire in my lights on mine, the OEM dome light wire didn't work well for me with this application. It also only turns on when the door is open, so no good for using the USB ports, etc at night.
 
I'm looking for a good spot to re-mount my OEM (led upgraded) dome light. I was thinking of mounting it to the b-pillar, but I'd need to cut a big hole for it to recess into. I might see if I can put it in the beauty strip on that side. Those things are flimsy.
 
The latches that hold the top closed only have one bolt in each one when shipped as the two other bolts will interfere with installing the top.
IMG_20240905_131957160.jpg


So, once the top is installed, you drill holes through the new top and through part of what's left of your roof...there is absolutely no room to get a hand up inside to get a nut on those bolts. Somehow, I did manage, but it was a PIA! The frame that supports the bed on the inside is in the way.

I taped a nut to a wrench and got 3 of them on, one was so close to the bottom seam, I could barely get the nut in the seam to get it started.
IMG_20240905_133211068.jpg

Probably should have put some sealant on the backside of the latches prior to bolting them down, but there's no way I'm taking them off again.
IMG_20240905_141525866.jpg


Oh, and the rear dome light wire runs right along that trough...of course I found it with my drill bit.
IMG_20240905_132222226_HDR.jpg
IMG_20240905_132414300.jpg
 
The latches that hold the top closed only have one bolt in each one when shipped as the two other bolts will interfere with installing the top. View attachment 3719534

So, once the top is installed, you drill holes through the new top and through part of what's left of your roof...there is absolutely no room to get a hand up inside to get a nut on those bolts. Somehow, I did manage, but it was a PIA! The frame that supports the bed on the inside is in the way.

I taped a nut to a wrench and got 3 of them on, one was so close to the bottom seam, I could barely get the nut in the seam to get it started.
View attachment 3719531
Probably should have put some sealant on the backside of the latches prior to bolting them down, but there's no way I'm taking them off again.View attachment 3719536

Oh, and the rear dome light wire runs right along that trough...of course I found it with my drill bit.View attachment 3719533View attachment 3719532
Your rear latch is different than mine. Did you get the "tall" roof or the regular?
 
High roof.

I tapped into my trailer light converter output and ran a wire up to the third light.

I didn't want to risk a really short-lived bright light, then nothing, using the truck's 24v feed.

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I'd just put the upper two bolts in to start, that lower one is a bitch to get a nut onto. Or, my backup plan if I couldn't get a nut started, was to pull the whole thing off and put a nutsert in the lower spot.
 
I'd just put the upper two bolts in to start, that lower one is a bitch to get a nut onto. Or, my backup plan if I couldn't get a nut started, was to pull the whole thing off and put a nutsert in the lower spot.
I'm probably going to put rivnuts in for this!
 
Last bit for the install was the beauty strips that close off the gap along the bed support frame and the side of the truck.
IMG_20240906_190657628_HDR.jpg


I had to remove the shelf on the passenger's side to get the front piece installed, there was some 'massaging' of the bends also...
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Has anyone had luck with the USB port working ?
Checked it with a meter and it’s getting power but it will not charge my cell or run a small fan.
Just ordered a blue sea USB port and going to replace it.
 
I just checked mine and the USB works and the blue light is illuminated. The USB-C didn't seem to work, but not sure I got the male cable plugged in all the way. It's kind of a PIA to plug things into it with the spring-loaded doors.
 

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