If you've ever snapped a tap or stud extractor in aluminium you'll know you have a big problem, you cant drill out the offending piece as its way too hard.
If you can get the offending stud/hole facing upwards or chemical metal yourself a little dam around the hole, Nitric acid will eat away enough of your broken tap or stud extractor in about 20 minutes to remove it and not damage the aluminium. Saw this done last week, simple way to get out of a really big problem and way cheaper than spark erosion.
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Fastasfowey
Re: ????
Interesting stuff acid !
Uric acid is excellent at cleaning polished ally rims! My ZX12R had an unexplainable 'brake fluid leak' on the right front caliper for weeks, but never lost pressure or fluid!
One day I caught the vicar's dog peeing on my front wheel and realised it wasn't me going mad! Wouldn't have guessed as it's a bitch and didn't know they cock their legs too?! Well, I kid you not...that side always polished up a treat .
NOTE TO SELF............pee on bike on way home from pub!!! ;O)
Uric acid is excellent at cleaning polished ally rims! My ZX12R had an unexplainable 'brake fluid leak' on the right front caliper for weeks, but never lost pressure or fluid!
One day I caught the vicar's dog peeing on my front wheel and realised it wasn't me going mad! Wouldn't have guessed as it's a bitch and didn't know they cock their legs too?! Well, I kid you not...that side always polished up a treat .
NOTE TO SELF............pee on bike on way home from pub!!! ;O)
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bobster
Re: ????
Fastasfowey wrote:Interesting stuff acid !
Uric acid is excellent at cleaning polished ally rims! My ZX12R had an unexplainable 'brake fluid leak' on the right front caliper for weeks, but never lost pressure or fluid!
One day I caught the vicar's dog peeing on my front wheel and realised it wasn't me going mad! Wouldn't have guessed as it's a bitch and didn't know they cock their legs too?! Well, I kid you not...that side always polished up a treat .
NOTE TO SELF............pee on bike on way home from pub!!! ;O)
I have to disagree with you on this one Mark.
Being a long suffering Gout sufferer...............Uric Acid is the Bain of my life!
If you have ever suffered from Gout you will know that it's a 10/10 in the pain stakes.......especially if it's in your feet!
And contarary to popular belief it's NOT a "Rich mans disease".....cos I aint rich!
Doctor said i'll be alright if I keep taking the medication..............everyday for the rest of my life
bobster
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Russbusa
Re: broken studs/cutters/taps in aluminium ????
If you get the wheel clean spray from your £1 shop, look up the safety data sheet from the manufacturer and voila - phosphoric acid !, I just happened to aquire a litre of 70% concentrated stuff from ummmm errrrrrr somewhere I frequent
Jenolite rust remover/killer/converter is between 2 - 5 % with water, plenty strong enough to remove the white fungus, dont soak cast aluminium for more than a few minutes or you will end up with a black smut on the surface (same as caustic soda leaves) the smut can be removed with nitric acid though !
You get the smut because the phosphoric or caustic has removed the pure aluminium and left the impurities like copper, silicone etc on the surface. Read up on anodising aluminium and you will get the full story if you really want it. . . . .yawn
Jenolite rust remover/killer/converter is between 2 - 5 % with water, plenty strong enough to remove the white fungus, dont soak cast aluminium for more than a few minutes or you will end up with a black smut on the surface (same as caustic soda leaves) the smut can be removed with nitric acid though !
You get the smut because the phosphoric or caustic has removed the pure aluminium and left the impurities like copper, silicone etc on the surface. Read up on anodising aluminium and you will get the full story if you really want it. . . . .yawn
