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Why not hot tank.

Classic Norton Commando Motorcycles.

Re: Why not hot tank.

Postby splatt » Fri Mar 17, 2017 5:46 pm

Rohan wrote:Hot caustic could well dissolve some zinc out of brazed joints (brass), but bronze should not be affected.
It would have to be long term though, and hot tubbing should only take a few seconds for a tank.
Remember, they use this to clean up iron V8 engines etc...

If any brass joints were affected, you'd only need to wave the oxy torch over it.


You have never used a cleaning tank have you ?
About 2hrs to remove the paint minimum
Wave a oxy torch over any affected joint , you wont know its been affected until there's petrol pouring out
Remember, Geebuz saves, warning level (1)

splatt
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Joined: Mon Jul 14, 2008 1:20 am

Re: Why not hot tank.

Postby Rohan » Fri Mar 17, 2017 6:18 pm

Not a commercial one, no.
Got my own backyard version.
Cheap as chips, no need to wait....

Image

Should only take seconds to strip the paint off, if its going to work.
Just comes off like a skin.

If its as badly affected the braze as that, you should be able to see it !!!
Rebrazed a few fittings, not to mention a few soldered ones.
Just general wear and tear though....

P.S. The fittings on most Norton tanks are steel welded there, and have been for a very long time..

Rohan
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Re: Why not hot tank.

Postby Rohan » Fri Mar 17, 2017 10:16 pm

BTW, hot tubbing is useful for all sorts of steel or iron items.
great for oil tanks and oily engine bits, the caustic is a perfect degreasing removal agent,
and nothing abrasive to get trapped or stuck anywhere.
And good for thin tin items too, where blasting may distort or even blow right through them !

https://s10.postimg.org/4bgincz7t/iron_head.jpg
https://s13.postimg.org/iaovvhk7r/otank.jpg
https://s1.postimg.org/64ildmz9r/thin_tin.jpg

Note that hot tubbing doesn't remove rust, that is an entirely separate process.

Rohan
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