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Damaged Tank Repair(JB Weld?)

Started by LowThudd, October 12, 2009, 12:23:25 PM

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LowThudd

October 12, 2009, 12:23:25 PM
I am looking at buying a 03 M800 for a very low price because it was dropped. The only problem I'm not sure about fixing is there is a crease in the dent in the tank that leaks slightly. I am thinking of using JB weld or some other product to repair the tank temporarily until I can afford to fix it right. Anyone use JB or any other epoxy type repair kit?

corey

#1
October 12, 2009, 01:28:05 PM
03 m800 = plastic tank, right fellas?
When all the land lays in ruin... And burnination has forsaken the countryside... Only one guy will remain... My money's on...

somegirl

#2
October 12, 2009, 01:57:08 PM
Quote from: corey on October 12, 2009, 01:28:05 PM
03 m800 = plastic tank, right fellas?

I thought it would be metal. ???

http://ducatimonsterforum.org/index.php?topic=541.0

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DarkStaR

#3
October 12, 2009, 02:12:26 PM
Should be metal.

ducpainter

#4
October 12, 2009, 02:23:16 PM
Definitely steel...

To the OP.

You may get away with a JB weld repair, but...

surface prep and application has to be perfect.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


LowThudd

#5
October 12, 2009, 02:37:06 PM
Quote from: ducpainter on October 12, 2009, 02:23:16 PM
Definitely steel...

To the OP.

You may get away with a JB weld repair, but...

surface prep and application has to be perfect.

Def is metal. Thanks for the reply. I see other tank repair kits(like victor), but I think JB weld will work better. Oppinions?

ducpainter

#6
October 12, 2009, 02:45:46 PM
Quote from: LowThudd on October 12, 2009, 02:37:06 PM
Def is metal. Thanks for the reply. I see other tank repair kits(like victor), but I think JB weld will work better. Oppinions?
I only use it if I'm also coating the inside, and then only if the customer insists. I guarantee my work, so I don't use "shortcut" or temporary repair methods.

Not familiar with that product. Have a link?
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


LowThudd

#7
October 12, 2009, 03:36:12 PM
Quote from: ducpainter on October 12, 2009, 02:45:46 PM
I only use it if I'm also coating the inside, and then only if the customer insists. I guarantee my work, so I don't use "shortcut" or temporary repair methods.

Not familiar with that product. Have a link?

It is a two part system, I see it advertised as for sale at ace hardware. It looks like two past sticks.

ducpainter

#8
October 12, 2009, 03:41:39 PM
Quote from: LowThudd on October 12, 2009, 03:36:12 PM
It is a two part system, I see it advertised as for sale at ace hardware. It looks like two past sticks.


I'd use the JB weld I think.

It will 'flow' into the repair area better than the thicker stick type IMO.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Langanobob

#9
October 13, 2009, 04:16:52 AM
Nate,

It sounds like this tank hit something with a sharp edge and has a dent with sort of a slice in it.  How would you repair this permanently?  I think I'd try to braze or OA weld it.  Depending on the dent location I've heard of some guys going to the effort of cutting a hole in some other area of the tank so that they can get a steel rod inside to knock the dent out.   Then repairing the hole of course.  I've had mixed results trying to knock dents back out of bike tanks with a rod through the tank fill hole.

ducpainter

#10
October 13, 2009, 06:21:32 AM
Quote from: Langanobob on October 13, 2009, 04:16:52 AM
Nate,

It sounds like this tank hit something with a sharp edge and has a dent with sort of a slice in it.  How would you repair this permanently?  I think I'd try to braze or OA weld it.  Depending on the dent location I've heard of some guys going to the effort of cutting a hole in some other area of the tank so that they can get a steel rod inside to knock the dent out.   Then repairing the hole of course.  I've had mixed results trying to knock dents back out of bike tanks with a rod through the tank fill hole.
Bob...

That is one way to do it. Access through the filler hole is always limited, but even more so on Duc tanks due to the airbox relief. I personally think adding holes is counter productive. I use a stud welder from the outside.  You can do really nice work with one if you take your time. Once the dent was pulled I would use an electric process to weld the 'slice'. OA welding adds too much heat IMO. I own a mig, but tig would be easier. I don't do enough of those types of repairs to justify the cost of a tig machine. I would then finish the job as normal with an internal coating.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Langanobob

#11
October 13, 2009, 09:31:55 AM Last Edit: October 13, 2009, 09:34:58 AM by Langanobob
Thanks, the stud welder is a good solution.  I've used one on an old truck in an area that was only accessible from one side with great results.  Guess I just forgot about it.  I didn't like the slide hammer collet thing that was supposed to grip the studs so I modified the slide hammer to hold a pair of vise grip pliers.  That worked good and had a much more positive grip on the stud.

LowThudd

#12
October 13, 2009, 12:08:44 PM Last Edit: October 13, 2009, 12:11:09 PM by LowThudd
This is the bike. The circled area is where the split is. There is a lip from the upper part of the tank overlaping the lower edge of the split.

http://i834.photobucket.com/albums/zz267/LowThudd/untitled.jpg[/img]]

Howie

#13
October 13, 2009, 02:26:05 PM
That tank needs ducpainter's loving touch.  You will get it back better than new. 

Cloner

#14
October 13, 2009, 02:41:58 PM
Quote from: ducpainter on October 13, 2009, 06:21:32 AM
Once the dent was pulled I would use an electric process to weld the 'slice'. OA welding adds too much heat IMO. I own a mig, but tig would be easier. I don't do enough of those types of repairs to justify the cost of a tig machine. I would then finish the job as normal with an internal coating.

I think you've hit the nail on the head, here, Ducpainter.  I believe that any fix of a leaking fuel tank involving less than a weld repair is irresponsible and dangerous.  Opinions vary, but that's mine.  I'd use TIG if practical.

My 2 (OK....4) cents.
Never appeal to a man's "better nature."  He may not have one.  Invoking his self-interest gives you more leverage.  R.A. Heinlein

'64 Ducati Monza 250
'67 Aermacchi/HD Sprint SS (race bike)
'00 Aprilia RSV Mille
'03 Ducati 800 SS (race bike)
'04 KTM 450 EXC
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