77 Trillium with missing nuts! - Fiberglass RV


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Old 01-17-2012, 09:26 PM   #1
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Name: Bob
Trailer: 1977 Trillium 1300, 1980 Scamp 16
Ohio
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So I'm looking at the bolts connecting frame and body. There's two on each side at the stern with nuts attached at the bottom of each frame member. There's one on each side at the bow with.......uh.......no nuts or bolt protruding from under the frame. Then I notice the welded reinforcement pieces added to the frame to prevent stress fractures. They are where the bolts and nuts should be protruding. Hhhmm. Well let's see what's holding the bow bolts in. Oh, for the love of........ they turn somewhat freely but won't pull out! I'm thinking I will need to relocate the bow bolts further aft to miss the reinforcement plates. Or not?
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Old 01-17-2012, 10:12 PM   #2
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That's sounds like a personal problem!

(I have nothing constructive to add, just a wise crack).
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Old 01-18-2012, 05:20 AM   #3
Raz
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Hello Bob and welcome to the forum. We have a new (2010) Trillium. On our frame they welded angle brackets to the side of the frame to eliminate through the frame bolts. There are 6 bolts on the new ones.

Here is a thread on frame attachment. Although it deals with a Boler I think you will find it useful.

Boler-to-frame fasteners -- I'd like advice on how to replace them

Finally if you use the search button to do a google search, you will find lots of info on the Trillium frame. Raz
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Old 01-18-2012, 11:38 AM   #4
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Trailer: Trillium
Arizona
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Trillium Bolt Replacement

Hello,
My Trill had rusted bolts. Replaced all 6 with
new ones. Stainless too expensive so I used
reg ones primed a couple of times. There are 2
at the front of the frame and 4 at back behind
axle. As I recall they were 5/16"? The original
ones had been in 30 years when replaced. Course
this trailer had been in AZ its whole life so the
rust problem was not as great.

Trillium Body Mounting Bolts

Any questions? Please ask.... Larry H
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Old 01-19-2012, 07:12 AM   #5
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Trailer: 1977 Trillium 1300, 1980 Scamp 16
Ohio
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The only thing I can figure is that whoever welded the reinforcement plates onto the frame simply did so directly over the protruding bolt ends and nuts. I have trouble believing someone would actually do that on purpose, but I suppose it was quick and dirty. I'll try to get a photo out today.

Anyone out there see this kind of thing before?
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Old 01-19-2012, 08:48 AM   #6
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Trillium Front Mounting Bolts

Morning,
These bolts were hard to see on my '78 Trillium 1300.
Looks like steel angle was added when the frame
reinforcements were welded on. Did you get on
your back under the trailer to eyeball the bolts/nuts?
Larry H
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Trillium Frame Mount.jpg  
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Old 01-19-2012, 09:07 AM   #7
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Trailer: 1977 Trillium 1300, 1980 Scamp 16
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Morning Larry. Yes, and where the bolts/nuts should be, there is a flat steel plate welded to the bottom of the frame. When I get to the shop today, I'll take a pic.

In your pic do I see an empty bolt hole in your frame? If so I wonder why the added brackets were needed.

Trying to figure out what has been done to this trailer is becoming quite the detective adventure!
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Old 01-19-2012, 09:33 AM   #8
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Quote:
Originally Posted by Bobaton View Post

In your pic do I see an empty bolt hole in your frame? If so I wonder why the added brackets were needed.
Hi Bob. The thread I referenced in my original post explains that. Trust me, it's worth reading. Raz
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Old 01-19-2012, 10:51 AM   #9
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Who Knows...

Quote:
Originally Posted by Bobaton View Post
In your pic do I see an empty bolt hole in your frame? If so I wonder why the added brackets were needed.
Well, I inspected the figerglass work on the bottom front of the
trill and saw no additional holes or repairs. I have to assume
that the brackets were added at the factory. The holes in the
bottom gussets do not go all the way through the frame...
I believe they did not want to drill holes there because of the
previous frame failure at the point where the holes were drilled?

Larry H
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Old 01-19-2012, 11:02 AM   #10
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I had some work done on my frame recently. The bolts were in rough shape. My Trillium 4500 has eight bolts, but the same idea. On my trailer, none of the bolts go through the frame. They either have angle iron tabs welded to the frame, or they go through the cross members. I like that fact that they did not drill into the 2 x 3 square tube.

I had the bolts replaced, but I had them install them upside down. That is with the bolt head on the outside, (bottom) and the nuts, and more importantly the threads on the inside. It takes two people to do this, but I figure that this will weather better.
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Old 01-19-2012, 11:56 AM   #11
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Trailer: 1977 Trillium 1300, 1980 Scamp 16
Ohio
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Thanks Raz. Lots of good ideas. The u-bolt idea is intriguing.

I believe I will cut off the remaining bolt (port side, bow) from the top just to be able to lift the cabin free from the frame and then see about extracting the remaining portion of the bolt, which turns freely but doesn't do anything further.

Then its time to decide whether to weld on brackets for single bolts, or go for the u-bolt idea.
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