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Post by philthat on Sept 30, 2023 21:42:44 GMT 1
Hello,
Does anyone have a suggestion for cleaning power valves with carbon on them, without damaging them?
Many thanks.
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Post by dusty350 on Oct 1, 2023 10:24:25 GMT 1
I use a small brass brush - usually come in a pack with a steel and a nylon brush - usually found in Pound shops or the like. It wont damage the steel Pv and gets the carbon off a treat  |
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Post by jon on Oct 1, 2023 10:45:30 GMT 1
I use a small brass brush - usually come in a pack with a steel and a nylon brush - usually found in Pound shops or the like. It wont damage the steel Pv and gets the carbon off a treat Steel powervalves? Surely you mean aluminium? I left a set in a sealed jar with petrol for a couple of years and it removed all carbon. Hadn’t intended to but just forgot about them. Jon |
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Post by linx on Oct 2, 2023 6:41:51 GMT 1
Hello, Does anyone have a suggestion for cleaning power valves with carbon on them, without damaging them? Many thanks. I use steel wool. Seems to work well without damage. |
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red998
Drag-strip hero
Posts: 211
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Post by red998 on Oct 2, 2023 8:24:37 GMT 1
Ultrasonic cleaning might work depending how hard the carbon deposit is, maybe combine it with a carb. cleaner solution.
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Post by headcoats on Oct 2, 2023 9:41:00 GMT 1
Oven cleaner but Don't leave on too long
Haven't tried it for this but used it to remove anodising
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Post by JonW on Oct 2, 2023 9:45:22 GMT 1
yep people did used to suggest oven cleaner... someone once told me he used a wire wheel... Ive always used a gentle scraper and brass brushes with WD40.
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Post by stusco on Oct 2, 2023 15:56:43 GMT 1
Ultrasonic cleaning might work depending how hard the carbon deposit is, maybe combine it with a carb. cleaner solution. If you have the water hot all the bushes fall apart due to different metal expansion |
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Post by freddie19 on Oct 2, 2023 18:05:36 GMT 1
Wire brush and Solvol Autosol definitely the way to go and..........a lot of elbow grease! 😁 This is the powervalve from my LC2, before and after cleaning. 👍   |
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Post by philthat on Oct 2, 2023 21:01:28 GMT 1
Ok, great thanks.
I've got an ultrasound cleaner. I'll give that a go first. Then move onto the brush and Solvo treatment.
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Post by bezzer on Oct 2, 2023 23:25:10 GMT 1
We’d have soaked them in a jam jar full of petrol overnight back in our youth surely? 😁
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Post by stirling11 on Oct 4, 2023 14:59:00 GMT 1
Use a non caustic paint stripper, ie the ingredient should be methylene chloride then buff off with a brass wire wheel
It won't affect the aluminium, caustic, or oven cleaner will
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Post by jon on Oct 4, 2023 18:20:47 GMT 1
We’d have soaked them in a jam jar full of petrol overnight back in our youth surely? 😁 +1 as I said. Jon |
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Post by philthat on Oct 4, 2023 22:06:04 GMT 1
Well, I Soaked them overnight in white spirit to remove some of the gunk. Then I gave it a go with the ultrasonic cleaner, with some result. I have some modern paint stripper at work. So I'll give that a go as well. before getting the solvo and Brass wire brushes on them.
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Post by stirling11 on Oct 5, 2023 12:50:11 GMT 1
Make sure that paint stripper DOES NOT mention the following ingredients
Sodium Hydroxide
Caustic Soda
Strong Alkali
If it does, do not use it or you will lose your PV's
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Post by steve63 on Oct 5, 2023 13:04:08 GMT 1
I've often wondered if there is a chemical that removes carbon but doesn't touch aluminium. It would make for a totally labour free method of cleaning anything aluminium caked in carbon. So far I've not found anything. I've left a set of RGV power valves soaking in carb cleaner in a sealed jar for weeks. Virtually un effected, i.e. not cleaned. I can't recall If I've actually tried the ultrasonic cleaner or not. Now I have my all new one it could be time to try. One thing I would say is that anything harder than aluminium will inevitably scratch it. So anything like wire wool, steel wire brush or even a brass wire brush. Depends how hard you press how much though. Some 'brass' wire brushes are just brass coated and still steel underneath. Even if it says brass I would still check. Coating steel with brass is much cheaper than making them out of brass  |
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Post by midlifecrisisrd on Oct 6, 2023 18:14:31 GMT 1
Acetone
Steve 😁
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Post by steeley on Oct 7, 2023 5:22:01 GMT 1
Once i have got the crud off the valves i give them a polish up with the buffing mops and polish .
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Post by stirling11 on Oct 7, 2023 14:00:56 GMT 1
Methylene Chloride will remove carbon and won't touch aluminium
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Post by wonkywheel on Oct 7, 2023 20:39:06 GMT 1
Sounds like we all have different approaches. I used a kitchen scouring pad with Autosol and WD40 then buffed with a cloth. The flexibility of the pad worked well. Not highly polished, but good enough for me. |
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Post by urbantangleweed on Oct 9, 2023 7:53:16 GMT 1
+1 for soaking in petrol for a day or two, an old fashioned suede brush works well after that bit.
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