New Trillium owners - Page 2 - Fiberglass RV


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Old 01-02-2021, 04:30 PM   #21
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Name: Phil
Trailer: 1977 Trillium 4500 (previously a 1978 Trillium 4500, Rpod 171 and Surveyor SV251)
Nova Scotia
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Quote:
Originally Posted by Steve Hague View Post
Our Trillium 4500 was manufactured in September of 1978.
Maybe they were doing a fall model changeover?
So having been made in September, maybe itís considered a 1979 model??

Interestingly, Iíve never seen that metal plaque, only the plastic sticker on the closet door.

Learn something new everyday!
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Old 01-05-2021, 09:27 AM   #22
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Our Trillium 4500 was built in September 1978 per the ID plate fastened to the front street side of the trailer. However, I think I was incorrect to assume that meant it is a 1978 Trillium 4500. I just returned from registering at our local BMV and noticed that it is titled as a 1979 trillium 4500.
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Old 02-11-2021, 08:38 AM   #23
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update

Thanks for all the information. We have pulled all the jalousie windows, disassembled them, cleaned and polished, replaced all gaskets, and now have them back together. The plywood window frames had enough water damage that I decided to replace all except the front window's, which seemed intact. I considered using composite as some have suggested, but in the end decided to use marine plywood and apply two coats of exterior urethane.
I decided to bring the trailer into our attached garage for ease of access and warmth. Somewhere on this site I saw the Roman wheels and copied them. Great idea.
I installed hitch, wiring harness, wireless brake controller, and transmission cooler on our 2015 Odyssey. I took the trailer on a 30 mile test drive of half interstate and got 16 MPG. I'll consider adding a sway bar after trying it fully loaded.
I replaced all the 110v outlets and plan to add some 12v USB power outlets as well. Probably will install a new 12v fuse block while I'm at it.
We plan to attend at least one rally this summer and hope to get more ideas for improvement.
You all have been a great source of information and encouragement.
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Old 02-11-2021, 08:54 AM   #24
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Name: John
Trailer: 1979 Boler 1700
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Wow great progress! You are on a roll.
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Old 02-11-2021, 10:44 AM   #25
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Name: bill
Trailer: 2013 Escape 19; 1977 Trillium 1300
The Mountains of North Carolina
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You are definitely off to a great start! I find I work in spurts. I'll work hard for a while, then go to something else, then eventually get back to it. Capitalize on times where you have the enthusiasm to make great headway.

Despite its shortcomings, I find the Trillium 1300 and 4500 models to be my two favorite trailers out there. I prefer the square shape, the pontoon design, no rivets, and more. The shallower kitchen cabinet limits appliances choices, but it gives a wider aisle way!

+10 to John’s comment below. When I open the jalousie windows on my 13 foot Trillium, I have MORE open window area than I have in my Escape 19. And my Escape has two additional/optional windows that open!
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Check my Trillium Project Page: https://www.facebook.com/Bills-1977-...dmin_todo_tour
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Old 02-11-2021, 11:16 AM   #26
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I agree will all of Bill's Trillium likes, and in addition I LOVE the ventilation offered by the jalousie windows even in a rainstorm. And they look retro.
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Old 02-13-2021, 05:23 PM   #27
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Indiana
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ensolite detour

We were preparing to reinstall the curbside window, but while investigating the ensolite I discovered that it was largely detached from the fiberglass and still wet!
Plan to let it dry thoroughly, then reattach with contact cement.
Thinking of grinding the fiberglass where pop rivets had perforated and applying a fiberglass patch before regluing the ensolite.
No apparent bulging of the bellyband, so plan to hold off on major belly surgery.
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Old 02-13-2021, 05:36 PM   #28
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Looks like belly band leak to me. Proper repair of belly band is not as bad as it looks. I did most of the work over a weekend, then an hour here and there every night through the week.
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Old 02-20-2021, 04:56 PM   #29
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Indiana
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Pulling Bellyband

After much consideration, we have started to remove the bellyband. Only two rivets demonstrate swelling, but found that there was previous repair attempt under the back window that seemed questionable. We are finding that the plywood under that section of bellyband is rotted and pretty easy to dig out.

Question:
The process for repairing the front and side sections of the bellyband seem pretty straightforward, but in the back section that has no interior fiberglass lapping the seam, should we just fill the gap with body filler as best we can, then tape over the seam?
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Old 02-20-2021, 05:23 PM   #30
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My opinion is that using just a fiberglass repair will not be sufficiently rigid. I inserted a new backer that is glued to BOTH the outer FG shell and the inner FG shell.

I replaced the rotted wood backer along the rear seam of my 4500 while the rear window was removed -- yep two projects at one time. This made it possible reach down from the rear window opening between the outer FG shell and the inner FG shell using a scraper, then sand paper and solvent to clean out the rotted wood backer. Then I was able to insert and glue and clamp in a new wooden backer using construction adhesive.

The details are provided in my 4500 thread linked below.
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Old 04-04-2021, 08:19 PM   #31
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Name: Susan
Trailer: Trillium 4500 (1979)
Manitoba
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Hi John - me, too. I've figured out that my 1979 Trillium was a 'deluxe' model. It came with a few extra upgrades!
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Old 04-05-2021, 12:28 PM   #32
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Name: Dave W
Trailer: Trillium 4500 - 1977, 1978 (2), 1300 - 1977, 1973, and a 1972
Alberta
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I ran into the same problem with the belly band at the back of one of my 4500s:
https://www.fiberglassrv.com/forums/...tml#post403159
If I were to do it again, which I will, I would go with the original plan of using fibreglass instead of ply wood. This is possible because Granger in Canada now carries pultruded fibreglass. Since you are in the States, the following links apply:
https://www.grainger.com/product/DYNAFORM-Angle-4ATH8
https://www.grainger.com/product/DYNAFORM-Angle-4ATH9
I can't remember if the required piece is more than 1-1/2" wide.

What I am suggesting is to cut the angle so it becomes two strips of fibreglass, 5' long. Glue them together to form a strip that is 1/2" thick. A flat surface will be required. Then glue the assembly where the plywood was. This repair should last much longer than the original plywood.
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Old 04-09-2021, 06:49 PM   #33
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To replace the plywood strip under the back window I opted to use 1/2 exterior plywood, which is similar to the original. After cutting to size (2 inches x 48 inches), I sealed the piece with 4 coats of exterior polyurethane. The piece was installed with construction adhesive and clamped in place as per John. After curing for a week, excess adhesive was removed, and the exterior gaps around the entire belly band were filled with Bondo Hair, Bondo Glass and Bondo Gold Filler.

I considered using a composite material instead of the plywood. I attempted to acquire Coosa board, but could only order full 4x8 sheets through our local supplier.

Looking forward to painting the belly band next week.
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Old 04-10-2021, 01:50 AM   #34
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Trailer: Casita
Missouri
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Congratulations on the new camper. I find it most exciting to customise your camper to fit travels. I have a 22 year old Casita that we have been traveling in and updating at the same time. There is a lot of potential In customising a small fibreglass trailer. I hope the remodeling goes well and enjoy your travels.

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Old 05-13-2021, 03:45 PM   #35
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first outing

Our first camping experience with Trudy was great. We just wanted a shake-down cruise, so we camped one night at Chain O Lakes State Park, which is only about 45 minutes away.
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Old 05-13-2021, 05:54 PM   #36
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Trailer: 2013 Escape 19; 1977 Trillium 1300
The Mountains of North Carolina
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This is how to do it! Camp close to home: close to your tools, close to supplies, close if you have to bail out. Test everything before taking that long dream trip! Well done.
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Old 05-14-2021, 11:01 AM   #37
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Name: Dave W
Trailer: Trillium 4500 - 1977, 1978 (2), 1300 - 1977, 1973, and a 1972
Alberta
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I have been giving the year of this trailer some thought. The serial number is in the transition zone, between 1978 and 1979:
https://www.fiberglassrv.com/forums/...tml#post680425

Since the fibreglass for the gaucho is not the, "almost dinette" style, I would conclude that this is a 1978, but I could be wrong.
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Old 05-14-2021, 02:58 PM   #38
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David, I would like to know which model year our 4500 is for certain too. I've been calling Trudy a 1979 model based upon the model year stated on her registration when sold new at our local Trillium dealer. Build date is September 1978 per the medallion fastened to front lower curbside.
I would like to know some specific updates for the 1979 model year if that is available. I wonder if they may have been building both models at the same time in order to use up the previous model's parts inventory.
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Old 05-14-2021, 05:47 PM   #39
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Quote:
Originally Posted by Steve Hague View Post
David, I would like to know which model year our 4500 is for certain too. I've been calling Trudy a 1979 model based upon the model year stated on her registration when sold new at our local Trillium dealer. Build date is September 1978 per the medallion fastened to front lower curbside.
I would like to know some specific updates for the 1979 model year if that is available. I wonder if they may have been building both models at the same time in order to use up the previous model's parts inventory.
First off, I have never seen that medallion before. Since it is riveted on, I would assume that other trailers that used to have it, would at least have holes from the rivets.

As for 1979 specific changes. The main one is that Trillium stopped using the front gaucho fibreglass that you have. Instead they used the front dinette seats, but in the gaucho version, they just screwed a piece of plywood where the table would be.

Other changes, Trillium discontinued the Duo-Therm gravity furnace, but that happened mid model year as a result of that style of furnace losing its approvals. This happened because the surface temperature of the furnace gets high enough to start a fire, if something flammable is touching it. They replaced it with a forced air furnace, typically mounted in the curb side dinette seat. I see that your gravity furnace has been removed, and the space it was in has been converted to a cupboard. Do you have a furnace?

Also the fridge was changed from an RM36 to an RM360, which I understand requires 12VDC to run, even on propane.

The converter was changed as well. In the 1978 model it was a Progressive Dynamics PD6921, mounted below the furnace. In the 1979 model it was a Basler CP20 mounted at the rear dinette side of the kitchen. This caused the drawers in the kitchen to be offset from each other.

The window in your door opens. This appears to be a feature that is exclusive to the 1978 model. Before and after that year, the door window is just a pane of glass that doesn't open.

That is all I can think of at the moment.
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Old 05-15-2021, 12:42 PM   #40
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Name: Steven
Trailer: Trillium
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David, you gave some great information to mull over.
Per our paper specifications nameplate (which has the serial number, but not the build date), the furnace and converter are consistent with the 1978 model, but the refrigerator originally was a Dometic RM 360TF (gas 12/110v).
I would have like to ask the previous owner what is the history behind the medallion, but I don't think that can happen. I will ask the dealership, but the son has taken over and I don't think he will know. I wonder if this was a special request by the dealership to make the title process easier here in Indiana, which as I recall from purchasing an out-of-state vehicle in the 70's, was quite an ordeal, involving an inspection by the local police department.
I think I will start calling Trudy a 1978 Trillium 4500 based upon the information you've provided.
Thank you for the information and insights.
Steve
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