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Post by mattybeckett on Aug 18, 2017 15:23:25 GMT 1
Anyone used deoxc for cleaning head and barells before? i,m thinking of leaving them for a good soak in a bucket for a fews days, just wondering if its ok to use on alloy. Cheers.
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Post by marsbar350 on Aug 18, 2017 15:45:26 GMT 1
its no good for alloy matty
its a strong alkali
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Post by reedpete on Aug 18, 2017 16:00:05 GMT 1
They will vanish before you eyes!
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Post by oldelsieboy on Aug 18, 2017 16:16:52 GMT 1
Anyone used deoxc for cleaning head and barells before? i,m thinking of leaving them for a good soak in a bucket for a fews days, just wondering if its ok to use on alloy. Cheers. What is your thinking behind cleaning barrels with a rust remover? OEB |
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Post by mattybeckett on Aug 18, 2017 16:46:50 GMT 1
To clean up the water jackets etc as they have slight normalish oxidation.
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Post by oldelsieboy on Aug 18, 2017 17:04:39 GMT 1
To clean up the water jackets etc as they have slight normalish oxidation. But Deox-C is a RUST remover  OEB |
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Post by mattybeckett on Aug 18, 2017 19:30:17 GMT 1
Cheers all, i know its a rust/corrosion remover, but i was just thinking of it as a corrosion remover and might remove the build up of fusty oxide that builds up inside water jackets etc.. sometimes you can't see the wood for the trees  |
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Post by midlifecrisisrd on Aug 18, 2017 19:35:53 GMT 1
I thought deox c was safe on alloy
Steve
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Post by oldelsieboy on Aug 18, 2017 19:56:38 GMT 1
I thought deox c was safe on alloy Steve Lifted from the Deox-C webpage "Harmless to glass, plastics, aluminium and chrome" It is also, "Harmless non-toxic and biodegradable" OEB |
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Post by midlifecrisisrd on Aug 18, 2017 20:13:29 GMT 1
I thought deox c was safe on alloy Steve Lifted from the Deox-C webpage "Harmless to glass, plastics, aluminium and chrome" It is also, "Harmless non-toxic and biodegradable" OEB I thought as much as I use an old petrol tap and it isn't damaged Steve |
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Post by reedpete on Aug 18, 2017 21:27:48 GMT 1
Happy to stand corrected about DeoxC, just don't assume general rust removers can be used on Ali or chrome. Particularly the acidic ones.
However the white cruddy build up in the waterways isn't rust so who knows if that will actually be shifted
I guess moral of the tail is read the instructions and use accordingly.
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Post by mattybeckett on Aug 18, 2017 23:19:01 GMT 1
Happy to stand corrected about DeoxC, just don't assume general rust removers can be used on Ali or chrome. Particularly the acidic ones. However the white cruddy build up in the waterways isn't rust so who knows if that will actually be shifted I guess moral of the tail is read the instructions and use accordingly. No problems reedpete but you did get me worried  i planned on leaving them in the tank after work today... but decided not to as wouldn't of been happy just to find a couple of liners in there monday morning  |
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Post by Ozhammer on Aug 19, 2017 0:06:25 GMT 1
Given the potential concerns, perhaps it might be best if you watch over the parts rather than leaving them to it, if you do decide to give it a go.
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Post by oldelsieboy on Aug 19, 2017 11:29:05 GMT 1
Cheers all, i know its a rust/corrosion remover, but i was just thinking of it as a corrosion remover and might remove the build up of fusty oxide that builds up inside water jackets etc.. Maybe kettle descaler would remove the build up in the water jacket. OEB |
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Deleted
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Post by Deleted on Aug 19, 2017 15:20:13 GMT 1
The white furry deposits in the water galleries is most likely calcium carbonate
It may dissolve with some vinegar, it wont be strong enough to affect the ally if left in for a short time, if it s calcium carbonate then it should fizz
rinse out with water and bicarb of soda solution to neutralise any traces of vinegar
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Post by Ozhammer on Aug 20, 2017 6:19:29 GMT 1
Not sure if it's available in the U.K. but we have a product here Calle CLR, which is a Calcium Limescale and Rust remover and is very good in my experience.
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Post by reedpete on Aug 20, 2017 9:10:28 GMT 1
Even though it looks similar I would very much doubt its limescale.
More likely to be aluminium oxide.
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Dave B
Drag-strip hero
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Post by Dave B on Aug 20, 2017 9:39:03 GMT 1
Kettle descaler is often Formic Acid, what ants use to sting you, it does remove lime scale.
Brick cleaner, for getting cement stains off brickwork, is often Hydrochloric acid, which would wreck an aluminium cylinder very thoroughly. I tried it as a possible way of removing some very stuck rings from a Kawasaki triple piston. Overnight, the piston diameter reduced by 3mm. The ring was still stuck!
Some people swear by Phosphoric acid, which is a very good rust remover, and you can find it in dilute form in Coca Cola. That might be worth a try.
I have heard of people who used to use Hydroflouric Acid to clean aluminium. It apparently dissolves aluminium oxide, but leaves the bare metal.
Don't even think about it! It cleans ally very well, but it also dissolves your bones, and glass.
If the white deposits are lime scale, a calcium compound, any acid will dissolve it. But Aluminium and Calcium are very close chemically, so what dissolves one will nearly always dissolve the other.
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Deleted
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Post by Deleted on Aug 20, 2017 13:53:57 GMT 1
CLR is a phosphoric acid mix, TBH, probably a bit strong for an alloy head
Keep well clear of Hydrofluoric it can and does KILL
Never ever use Hydrochloric on anything other than bricks, it leaves behind a chloride which will attack steel and is bloody hard to get rid of
Coke is a good alternative to vinegar, agree with above it could be aluminium oxide too
The calcium carbonate would occur if you are using hard water as your coolant and it boils dry, the aluminium oxide is just ally's way of protecting itself from further decay, if you remove it, it will come back again, if its not blocking up all the water galleries then it can be left alone
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Post by mattybeckett on Aug 21, 2017 19:53:42 GMT 1
Cheers for that hblair great advice' i guessed it might not be safe, so just cleaned them in the parts washer today after a light honing of bores. Will get them vapour blasted next before painting.
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i planned on leaving them in the tank after work today... but decided not to as wouldn't of been happy just to find a couple of liners in there monday morning 
