alloy cleaning

[2jzhilux]

hi
i have just removed my engine from my aristo half cut
and the alloy parts on the gearbox and my inlet manifold and all the turbo intake pipes have some salty corrosion stuff on them
if there anything that removes this and brings it up clean with out polishing it or painting it


thanks

[BeRad]

A bit of inox fixs that right up, my intake manifold , cam cover etc gets like that when it gets wet and sits wet for a few days, a bit of inox and its Aok again

[30psi 4agte]

Try a search ...... we have had this topic before....

From memory there is also some caustic degreaser that gets rid of that stuff no prob.

[30psi 4agte]

Just had a dig around and found that thread i was on about....

http://www.toymods.net/forums/showth...cleaning+alloy

[Andrew162]

I got the same problem at the moment, esp. after the shitload of rain we just had, and the engine being outdoors...


I got some stuff called Blitz which is aluminium cleaner, but highly corrosive. "cleans stains and oxid(is)ation from aluminium & stainless steel"... apparently you have to dilute the mix, wear gloves and brush this stuff on. the entire intake, runners & rocker cover need a good go.

[30psi 4agte]

That sounds abit like that caustic degreaser i have. Great stuf but dont leave it on alloy too long as it eats it!

used for the right amount of time it will bring alloy up like new!

[oldeskewltoy]

a mild remover would be a compound called "Aluminum Jelly" deoxidizes.

Duro® Aluminum Jelly Corrosion Remover

Restores and brightens dull, oxidized aluminum in minutes

Quickly and easily removes layers of "white rust," dirt and grime -- simply brush on and rinse off

http://www.chooseaglue.com/repairs.a...=5&Product=170

[rob_o]

Would a regular degreaser do any good? I also have this on my intake plenum and makes it look pretty dodgy.

[30psi 4agte]

nah i doubt regular degreaser will do anything to it.

[5000gt]

no need for anything too special/fancy. Just some mag wheel cleaner will bring a nice shine to alloy. It's probably cheaper than all the special stuff anyway.

Use an old toothbrush to scrub for extra shine, and make sure to wipe off with wet cloth as it is acid based.

["Z" UTE]

Some form of acid, is really required, particularly in th case of the runners in the pic above. Or you will have to use mechanicl cleaning. When Aluminium alloy corrodes, it opens up like the pores in your skin, when you get hot. Have a talk to a shop that anodises aluminium, as I know they acid wash, rinse, phosphate dip, and then anodize. The last step of the anodising process, involves "closing the pores"

cheers Chuck.

[Andrew162]

nah i doubt regular degreaser will do anything to it.

QFT. I degreased the rest of the engine with almost two full cans of degreaser and that brought up a shine in most places as I'm guessing this engine hadn't been in an engine bay for some time. this is what the degreaser left behind... numerous cleaners of varying grades couldn't get this shit off.


to me that warranted a stronger type of alum cleaner, which is what Blitz is. it's that bright-pink stuff which was mentioned in the other thread above, and needs to be diluted approx. 300ml to 1L of water for the job I gotta do on it.

to be honest I was going to attack the runners with a Dremel, but I didn't wanna spoil the finish of the castings.

[Xistant]

2000grit wet n dry and lots of elbow grease, then some clear

[30psi 4agte]

yep that pink shit is the stuff i ave! Great stuff...... burns the lungs if you breathe it in , will eat the alloy if you leave it on tooo long !

My type of stuff

It really needs to be some sort of caustic style of solution to really have much of an effect.

Could try baking powder / draino / caustic soda / oven cleaner

Not too sure on the above lot ....but some of em may have some effect.

Or you can just go buy the pink shit. - I have a 20L drum.Im not sure if they sell it in any smaller size as it is sort of an industrial chemical.

[Andrew162]

haha, 1-litre bottle FTW!! supercheapass stocks it.