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Welding and painting the tank, do i need to take out the innerds?

Started by SaltLick, December 04, 2008, 10:21:18 AM

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SaltLick

I have a fuel injected 02 monster. I am having the tank welded/painted. I have to wash it out with soap and water first.  Do i need to remove the "stuff" inside the tank first? I would think so. Is there anything online that shows you what and how to remove and replace the stuff inside the tank? Stuff meaning all the tubes and fuel injection parts inside it. Sorry before this bike i had a carb model so it was easy, there was nothing to remove but the petcock.

Speeddog

Yes, take all of the stuff out.

If you download the parts catalogue for your bike from ducati.com, it shows pretty well how all the stuff goes inside.

Not aware of any online 'tutorial'.
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Speeddog

When you pull off the 'return' fuel line, it'll all drain out *fast*.

- - - - - Valley Desmo Service - - - - -
Reseda, CA

(951) 640-8908


~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~


Capo

Make sure the tank is free from all fuel vapours before you put any kind of flame or spark onto it, lest you be in for a big surprise


Capo de tuti capi

ducpainter

Quote from: Speeddog on December 04, 2008, 12:37:44 PM
When you pull off the 'return' fuel line, it'll all drain out *fast*.


The tank won't drain completely....
Quote from: Capo on December 04, 2008, 01:13:45 PM
Make sure the tank is free from all fuel vapours before you put any kind of flame or spark onto it, lest you be in for a big surprise
I'm assuming you're going to coat the tank when you're done brazing. Rinse the tank with soap and water. If there is heavy scale be prepared for a 'poof' or two.

Quote from: SaltLick on December 04, 2008, 10:21:18 AM
I have a fuel injected 02 monster. I am having the tank welded/painted. I have to wash it out with soap and water first.  Do i need to remove the "stuff" inside the tank first? I would think so. Is there anything online that shows you what and how to remove and replace the stuff inside the tank? Stuff meaning all the tubes and fuel injection parts inside it. Sorry before this bike i had a carb model so it was easy, there was nothing to remove but the petcock.
The pick up screen will melt if you don't take the pump out.
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herm

be careful not to get your elbow stuck in there....
its a close thing when you are reaching down in there for the fuel pump.
Never wrestle with pigs. You both get dirty, and the pigs like it...

scott_araujo


SaltLick

Quote from: ducpainter on December 04, 2008, 04:49:36 PM
The tank won't drain completely....I'm assuming you're going to coat the tank when you're done brazing. Rinse the tank with soap and water. If there is heavy scale be prepared for a 'poof' or two.
The pick up screen will melt if you don't take the pump out.

Not sure what my wifes dad plans on doing.   He said he welds MC tanks, has fixed many a leaky tank in his time. Hes 70 and still races MX bikes on the weekends. He said to wash out the tank real good, then bring it over and hell weld the leak for me,  and grind it smooth so i can have it repainted.  He said when hes done we wont need bondo or POR15. 

I am not sure what brazing is, or what coat the tank means.

ducpainter

Quote from: SaltLick on December 04, 2008, 09:17:34 PM
Not sure what my wifes dad plans on doing.   He said he welds MC tanks, has fixed many a leaky tank in his time. Hes 70 and still races MX bikes on the weekends. He said to wash out the tank real good, then bring it over and hell weld the leak for me,  and grind it smooth so i can have it repainted.  He said when hes done we wont need bondo or POR15. 

I am not sure what brazing is, or what coat the tank means.
Any time you put heat to a gas tank rust will quickly follow. He may not need the POR to stop the leak, but I would recommend it.

I was assuming you had a hinge leak. I braze them. It's like as welding except you use brass.
"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.”



scott_araujo

There was a post recently, actually might have been you Salty, about using a chemical toilet cleaner to get the rust out of tanks.  I think it leaves behind an iron phosphate coating that helps deter corrosion but doesn't harm anything.  Even though your tank isn't rusty it might be a good plan to keep it from rusting for the short time it's empty.

Scott

Jarvicious

We're liberated by the hearts that imprison us.  We're taken hostage by the ones that we break.

SaltLick

foggin it with WD40 once its dry inside keeps it okay til you can put gas back in it.

Bill in OKC

Quote from: Capo on December 04, 2008, 01:13:45 PM
Make sure the tank is free from all fuel vapours before you put any kind of flame or spark onto it, lest you be in for a big surprise

I saw the results of someone welding a gas tank with fumes in it one time...  It didn't seem like there were a lot of fumes,  but after a few seconds "POW!"  A flame shot out of the fill hole about 5 inches long - it looked like a small rocket engine for a second or so.  The tank didn't explode, but it did *fix* a couple of dents!  LOL  The pressure pushed them right out.  One time a professional welder told me to get some carbon tetrachloride and bring it to him to swish around in the tank - he didn't trust me to do it.  It neutralized the fumes and then he would weld it for me.  I don't think you can get that stuff anymore but there is something that works just like it.
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