Trucks & Trailers - Badly rusted / rusty U-Bolt, best way to remove?

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stan2538
03-01-2011, 06:35 PM
What is the best/least painful way to remove this badly rusted U bolt? With or without a power tool? Thank y'all.

http://i273.photobucket.com/albums/jj216/XR250Dude/f7db1f2e.jpg


tango2echo
03-01-2011, 06:39 PM
Carbon Arc

jetboat69
03-01-2011, 06:41 PM
Big hammer and cold chisle.
Put the chisle blade flat under the nut and give it a whack or 2.


ZIGZAG
03-01-2011, 06:47 PM
Sawzall or torch.

SurfFishLife
03-01-2011, 07:00 PM
You could use a side grinder and grind through the bolt ALMOST all the way; then hit it with a hammer.

bc22
03-01-2011, 09:02 PM
try the cold chisle first as it'll be the easiest to try.
if still no go, zip or grind it off as others have mentioned.

if the bracket is still structurely fine, grind the rust off and spray zinc paint on it before re-installing the new hardware or just replace with new galv bracket.

slickster
03-01-2011, 09:34 PM
4 inch grinder with cut off wheel will zip right through....

fishinmaniac
03-01-2011, 10:04 PM
What tools do you have available? Sawzall would be my go to on that one followed by a 4'' grinder with cut off wheel.

stan2538
03-02-2011, 05:15 AM
I don't have any power tools yet. I count 24 bolts in similar condition that I'd like to remove. I'm going to give it a whack but I reckon it might have pretty good residue strength. Which should I buy? A grinder or a sawzall (is this a reciprocating saw?)?

Mersiles
03-02-2011, 05:28 AM
You can get a grinder and a fist full of cut off wheels for pretty cheap. Wear long sleaves and some safety goggles and it will make quick work of those.

Last year I replaced my leaf springs and all the rusted ubolts. Probably 20 or so bolts in total. I used 4 or 5 wheels in the job. The only issue is if the grinder starts to hop it will shatter the wheel.

fishinmaniac
03-02-2011, 05:44 AM
Yes, a sawzall is a reciprocating saw. It really depends, I have both and in some cases I like the sawzall in others I like the grinder. If you had to buy only one then see what your access to these areas is like. Can you fit an angle grinder everywhere youll need to or is a blade going to work better?

rwidman
03-02-2011, 05:53 AM
Me, I would reach for the reciprocating saw because I have one and am pretty experienced with its use. The other suggestions will work also.

Kamper
03-02-2011, 06:21 AM
Bolt cutter should do it. Alternately a nut breaker would split the nuts and you can knock them off with a hammer and cold chisel. Then tap the bolts thugh those plates.

Good luck!

A_Salt_Weapon
03-02-2011, 06:53 AM
Get the angle grinder. You can get one at Harbor Freight pretty cheap if you have one near by. The blades are a lot cheaper than sawzall blades too. The angle you have to cut that would be a PITA with a sawzall.

fishinmaniac
03-02-2011, 10:42 AM
For the record, I wouldn't cut the nuts off but rather the U bolt itself.

Sudden Strike Fishing
03-02-2011, 11:08 AM
Th 4 inch grinder will be easier to use in the tight spaces.

bear685
03-02-2011, 11:57 AM
Sawzall or torch.

i'm a sawzall kind of guy too ... if u want to really be precises - get a dremel tool.

doubledip
03-02-2011, 06:39 PM
4"grinder & cutoff blade,just went through that. Nothin to it. I cut the u bolts right on the corner just about all the way then hit it with a hammer.

23Dorado
03-02-2011, 06:59 PM
4 inch grinder with cut off wheel will zip right through....


Yup.

bamaboy473
03-02-2011, 07:09 PM
The OP needs to look at the whole trailer with a cost/benefit analysis. The bolts are connected to the brackets, that are connected to the bunks.
The bolts are also connnected to the axles and frames, and the springs, and brakes, and tires.

If the u-bolts are that nasty, chances are that parts are going to kill his budget;...maybe time for a new trailer?

aln
03-02-2011, 09:32 PM
4 1/2" Sidewinder grinder from Harbor Freight

DoubleO7
03-03-2011, 07:04 AM
The OP needs to look at the whole trailer with a cost/benefit analysis. The bolts are connected to the brackets, that are connected to the bunks.
The bolts are also connnected to the axles and frames, and the springs, and brakes, and tires.

If the u-bolts are that nasty, chances are that parts are going to kill his budget;...maybe time for a new trailer?

And also look at everything else that needs to be repaired or replaced.
Make sure the frame structure is not about to rust out from the inside out.
A galvanized tubular steel trailer can look decent right up untill it breaks in two.

My first attempt on those u-bolts would be to hammer an impact socket over the nuts and then use a 3 foot breaker bar to twist/break the u-bolt. them off.

Mersiles
03-03-2011, 07:41 AM
Along with the grinder and cut off wheel (not the grinding disc), get a can of Galv paint. If you nick any of the galvanized metal, which you will, you can hit it for a touch up.

booyagasha
03-03-2011, 07:59 AM
So between the shitty Carlisle tire, rusty and faulty leaf springs and ubolt ---axle was pushed back and tire exploded on the night we take out a buddy's flat boat ..first trip since winter....

We made it work with a spare and some rope. 8-9miles from the launch
http://i880.photobucket.com/albums/ac1/lamngochoang04/IMG_20110224_101243.jpg

chrisrack
03-03-2011, 12:44 PM
The OP needs to look at the whole trailer with a cost/benefit analysis. The bolts are connected to the brackets, that are connected to the bunks.
The bolts are also connnected to the axles and frames, and the springs, and brakes, and tires.

If the u-bolts are that nasty, chances are that parts are going to kill his budget;...maybe time for a new trailer?

Rick -

I know the trailer. It's an Owen's and Sons triple axle trailer. Overall it is in great condition and is a VERY heavy duty trailer. Just a few u-bolts that are heavily rusted. Most bolts are in fine condition; the few at the stern are heavily rusted. New brakes and tires too. It would be a $6k trailer to replace.

lobsterboatman
03-03-2011, 01:19 PM
GRINDER ! New Project ?

jhendric
03-03-2011, 04:53 PM
Grinder for sure.

stan2538
03-03-2011, 10:17 PM
I'm getting the trailer up to Malaysian highway code, which means getting rid of visible rust on several u bolts and brackets which should be qed, I hope. As Chris mentioned, the trailer itself is sturdily and heavily built, aluminum I beam with galvanized parts, axle (triple) and crossmembers. Shipping here will cost more than the trailer.

LouC
03-05-2011, 11:30 AM
Could be, I have re-habbed an old trailer and you can get close to the cost of a new one depending on what it needs...
One thing I want to reinforce, when using any of these tools, WEAR SAFETY GOGGLES, be careful with your eyes...grinding and cutting will produce tons of small chips of rusted metal, do not want that in your eyes....wear work gloves too...

makover469
03-05-2011, 12:01 PM
sawsall or slegdehammer with a big sharp chizel:bashhh:

Sailor
03-06-2011, 12:13 PM
I had many u-bolts that looked just like that. I used a dremel cut off wheel and it would take two or three wheels to get through it. Then I *upgraded* to a $15 Wal-Mart cut off tool and it was like slicing butter. I cut all of them at the top of the U (under the trailer) and then simple rotated the broken pieces 90 degrees and backed them out. Do one at a time, replace it and then move on to the next and you should be fine.

MAKE SURE you wear eye protection! lots of sparks and rust popping off.

slapshot
03-06-2011, 12:36 PM
I'd go grinder and cut off wheel also.



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