Got to thinking my carb would benefit greatly from an Evapo-Rust bath but wanted to check in here to see if there is anything I am missing that might make this not a good idea? And/or anything in particular I should do or avoid? Am thinking I am good to just pull it off and bathe away. Any guidance appreciated. PS. towels are there as I have the valve covers off pending restoration and just wanna keep any debris from getting in there.
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late Oct 1969 L46 350/350, M21 4spd, 3.70 posi convertible --As with life, restoration is a journey, not a destination. Though restored cars provide both journeys AND destinations! -
Re: Carb Evapo-Rust Bath
Well, first...... is the carb performing properly, cold start, smooth idle, no bog on acceleration, no leaks? If if is functioning fine leave it... If you soak it in a cleaning solution you will very likely have to do a restoration on it because it will leak like a sieve. And, if you are living right and it does not leak (highly doubtful) there is an even better chance that some small chunks gunk that the evapo rust dislodged from the surface will get stuck in the small passage ways or in jets where fuel is supposed to flow and it will run like crap. See where this is going..... its complicated or will be real fast. If you are up for doing or paying for all that.... get out the evapo rust.Ed -
New England chapter member, 63 Convert. 327/340- Chapter/Regional/national Top Flight, 72 coupe- chapter and regional Top Flight.Comment
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Re: Carb Evapo-Rust Bath
You may want to double check whether if evapo-rust removes certain types of plating or not. I don’t recall. I am not sure that it will remove any oils or gunk. I don’t know that it is really designed as a cleaner. I would read up on it.Comment
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Re: Carb Evapo-Rust Bath
Would not recommend EVAPO-RUST for carbs Too acidic for the metal carbs are made ofFounder - Carolinas Chapter NCRSComment
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Re: Carb Evapo-Rust Bath
Here is an FAQ on evaporust, in case that helps you determine whether it is appropriate for carb cleaning (I don't know that it is).
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Re: Carb Evapo-Rust Bath
No, it will not clean or damage any of these metals. It will not harm rubber, plastic, clothing or glass either.
So, as others have pointed out, this product would not appear to do what you want it to do (except for the limited number of ferrous metal parts on your carb)thx,
MarkComment
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Re: Carb Evapo-Rust Bath
Keith,
To clarify, Evapo-Rust is chelating agent. Not an acid. Repeat, it is not an acid. The chemical in Evapo-Rust is designed to remove rust from ferrous parts via chelation (Google that term for a chemistry explanation). It will not remove grime like carb or brake cleaner will. Personally, I would not use it on a carburetor.
GaryComment
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Re: Carb Evapo-Rust Bath
...and here's more chelation (Greek for "Claw") chemistry than you can shake a stick at !
PS - Evapo-Rusts SDS lists the product at a pH of 5.9 (mildly acidic).
In fact, uncontaminated rain water is naturally acidic. Water contains atmospheric gases as well as carbon dioxide, and when the carbon dioxide dissolves it forms carbonic acid, which makes the pH of normal rain about a 5.6 on the pH scale.
and more from the web:
- a lemon has a pH of 2 (very acidic)
- Apples, oranges, grapes and cranberries are all moderately acidic.
- Cranberry juice is the most acidic, with an approximate pH value of 2.3 to 2.5.
- Grape juice has a pH of 3.3;
- apple juice has an approximate pH value of between 3.35 and 4; and
- the pH of orange juice ranges from 3.3 to 4.2.
thx,
MarkComment
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Re: Carb Evapo-Rust Bath
A ton of good stuff to digest. I do welcome the chemistry stuff as interestingly my undergraduate is in chemical engineering 1983 though I never earned a dime in that industry...long story. Carb only has 2,000 miles logged since a carb rebuild..so probably not much gunk to break loose and clog...problem is that rebuild was in 1997 when I bought the car. A year later I meet someone who became my wife (who knew vettes attracted women) and along come the kids and vette goes for a long nap. Started it spring 2021 for first time in over 20 years, fired up fine and had been running fine pre-20year nap. My reason for even considering the bath is purely cosmetic and general cleaning. Having finally get going with this long awaited restore I have become enamored with Evaporust. That said...duly noted limitations on non-ferrous parts.
I saw Eastwood advertise an ultrasonic cleaner that they actually put out a video using it on a carb. Anyone have thoughts or experience on that? I am not obsessed with doing a carb clean..but these are good months to do it if I am going to. But...I gotta many other refurb tasks this winter so maybe just let this one go....for this winter anywho.
Regarding the rubber fuel line patch job...thanks...gonna order up a set of new fuel lines.***************
late Oct 1969 L46 350/350, M21 4spd, 3.70 posi convertible --As with life, restoration is a journey, not a destination. Though restored cars provide both journeys AND destinations!Comment
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Re: Carb Evapo-Rust Bath
Keith,
If the carburetor is operating correctly with no leaks and all you're wanting is a cosmetic cleaning...look no further than a aerosol can of carb cleaner. Remove the carb from the manifold and spray her down inside and out and all that scum will fall off. Easy peasy.Leif
'67 Coupe L79, M21, C60, N14, N40, J50, A31, U69, A01, QB1
Top Flight 2017 Lone Star RegionalComment
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Re: Carb Evapo-Rust Bath
Thanks man. Got a can on the shelf...will take it to it!***************
late Oct 1969 L46 350/350, M21 4spd, 3.70 posi convertible --As with life, restoration is a journey, not a destination. Though restored cars provide both journeys AND destinations!Comment
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