chassis cracks, cruiser rv funfinda

[williedropem]

Hi
Has anyone come across cracks in the main chassis I beam just in front and behind the wheels, on both sides, horizontal cracks, pretty much in the middle of the web along gusseting or lateral support beams, seem to be caused by lateral forces rather lengthwise flexing.
if so any joy in fixing them?

[The Gritz Carlton]

Sounds like maybe a frame modification gone bad or not done right in the first place. Are you sure they are actual cracks or maybe just where the paint may be flaking from where they painted over the modification? Got a couple pics you can post of it?

[Bob Denman]

Some pictures would be really helpful...
IMHO you don't fix cracked frames: you replace them.
But I always try to err on the side of caution...

[The Gritz Carlton]

You spray over cracked frames and trade it the same day. Granny's camper that only got driven to church and the grocery store once a week...God rest her soul!

[Chance]

Originally Posted by williedropem

.....cut..... seem to be caused by lateral forces rather lengthwise flexing .....cut.....

Not necessarily — depends on entire design and loading. Lots of pictures from different angles at all failure points may help.

[Bob Denman]

Originally Posted by The Gritz Carlton

You spray over cracked frames and trade it the same day. Granny's camper that only got driven to church and the grocery store once a week...God rest her soul!

I'll bet that the used car salesmen in your hometown were terrified of your Granny!

[lwmcguire]

Originally Posted by Bob Denman

Some pictures would be really helpful...

IMHO you don't fix cracked frames: you replace them.

But I always try to err on the side of caution...

Very serious deal if is cracked

I have stretched, shrank and fixed frames using fish plate and bolts

It is very time consuming and expensive as you need good access

I doubt if it would return the investment on a coach unless it is fairly valuable

Probably total loss if it is cracked through

[Chance]

I assumed the Cruiser Fun Finder is a trailer. Mention of “I-Beam” chassis reinforced it for me. Hope that’s right.

[lwmcguire]

Originally Posted by Chance

I assumed the Cruiser Fun Finder is a trailer. Mention of “I-Beam” chassis reinforced it for me. Hope that’s right.

Sure could be, then it would be repairable, probably welded in place

[saddlesore]

https://www.cruiserrv.com/brands/
Travel trailer

[Bob Denman]

Originally Posted by saddlesore

https://www.cruiserrv.com/brands/
Travel trailer

Thanks for the missing piece of the pie!

[williedropem]

Nice to see such interest in such a short time, thanks to all of you who have taken the time. I met a guy on a camp ground a couple of days ago who told me about this forum, thought I'd give it a try.
Yes the cruiser rv funfinder X189 is a double axle caravan, about 6.0 mtrs long, the cracks(and they are cracks) are just in front and behind the wheels, same place on both sides along welded gussets and behind cross members on the main frame I beams, the van doesn't appear to have been modified, I welded the cracks up yesterday(just gouged out and stick weld) as we are going away later this week for quite a long trip so I didn't want to risk it getting worse.
when we get back next week I will take photos and post them, don't like the sound of the possibility of having to replace the whole chassis, I'm sure the cracks could be patched if they come back through the weld.

[MLM1986]

I have a cracked weld on the leaf spring rear bracket passenger side and a crack in the frame on the driver side. I had a professional welder install a receiver on the frame for a bike rack. I carried tow bikes, each less than 30 pounds and used a strap to stop the sway.
Could the bike rack have caused these cracks?

[Bob Denman]

Welcome to the forum, and it is doubtful...

[MJC62]

Welcome aboard and as Bob said 60 lbs of bikes causing cracks in frame or brackets is a stretch.

[MLM1986]

Suspension repairs that require welding do you need to replace all of the brackets? And how do you get it aligned? Our door will not close.