Cleaning Valve Covers with Evapo-Rust - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Getter-Done** · 06-22-2024, 01:13 PM

I am helping my Nephew get his 83 Chevy truck back in shape.
He inherited it for his Great Grandpa (Indirectly)

His Grandpa was using it as a farm truck and Grandma (The Inheritor of the truck) decided he needed that truck instead of selling it to someone outside the family.

I bought a Valve cover on the board here that has the (4X4) fill tube.
It was in Excellent condition.

So, we can't put one painted valve cover on and leave the other Ugly.

The passengers side valve cover was rusty.
Sandblasting is not something I will do to a engine part like this.

So, I turn to my favorite easy way to take care of this.

Evapo- Rust

Yes, there are other ways that are cheaper.
I have tinkered with other methods.
This is my favorite and is reusable if you contain it tactically.

Here is before and After pictures.

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**Getter-Done** · 06-22-2024, 01:15 PM

**Getter-Done** · 06-22-2024, 01:15 PM

**HO455** · 06-22-2024, 11:14 PM

They came out nice! I assume it's some kind of acid?

How do you neutralize it and prep the part for paint?

**Getter-Done** · 06-22-2024, 11:29 PM

Quote:

Originally Posted by HO455

They came out nice! I assume it's some kind of acid?

How do you neutralize it and prep the part for paint?

Here is the website.

Link: https://www.evapo-rust.com/

It is not a toxic acid.
It is PH neutral.
It is safe and water soluble.

I rinse it with water then dry it with compressed air.
Then I sprayed it with WD-40.
I will prep it with brake cleaner before I paint it.

**TKCR** · 06-23-2024, 07:42 AM

I use Evapo-rust on a lot of parts.
I’ve used it for bolts, seat tracks and seat belts. I used to sandblast a lot of parts, but not anymore!

franken · 06-25-2024, 05:01 AM

Diluted concrete etch (phosphoric acid) is the way I go.

06-22-2024, 01:13 PM	#1
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 7,920	Cleaning Valve Covers with Evapo-Rust I am helping my Nephew get his 83 Chevy truck back in shape. He inherited it for his Great Grandpa (Indirectly) His Grandpa was using it as a farm truck and Grandma (The Inheritor of the truck) decided he needed that truck instead of selling it to someone outside the family. I bought a Valve cover on the board here that has the (4X4) fill tube. It was in Excellent condition. So, we can't put one painted valve cover on and leave the other Ugly. The passengers side valve cover was rusty. Sandblasting is not something I will do to a engine part like this. So, I turn to my favorite easy way to take care of this. Evapo- Rust Yes, there are other ways that are cheaper. I have tinkered with other methods. This is my favorite and is reusable if you contain it tactically. Here is before and After pictures. __________________ ________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build

06-22-2024, 01:15 PM	#2
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 7,920	Re: Cleaning Valve Covers with Evapo-Rust __________________ ________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build

06-22-2024, 01:15 PM	#3
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 7,920	Re: Cleaning Valve Covers with Evapo-Rust __________________ ________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build

06-22-2024, 11:14 PM	#4
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,953	Re: Cleaning Valve Covers with Evapo-Rust They came out nice! I assume it's some kind of acid? How do you neutralize it and prep the part for paint? __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

06-23-2024, 07:42 AM	#6
TKCR Senior Member Join Date: Oct 2014 Location: Ohio Posts: 6,901	Re: Cleaning Valve Covers with Evapo-Rust I use Evapo-rust on a lot of parts. I’ve used it for bolts, seat tracks and seat belts. I used to sandblast a lot of parts, but not anymore! Attached Images __________________ FB Page for my Seats Belts https://www.facebook.com/73-87-Chevy...9439407476735/ Restoring Seatbelts: http://67-72chevytrucks.com/vboard/s...d.php?t=809750 SOLD My 86 Build:http://67-72chevytrucks.com/vboard/s...d.php?t=654972 Past Restored Bench Seats:http://67-72chevytrucks.com/vboard/s...d.php?t=715398 PayPal link to pay for your items: https://www.paypal.me/TKCR

06-25-2024, 05:01 AM	#7
franken Registered User Join Date: Jun 2013 Location: Somewhere Posts: 3,068	Re: Cleaning Valve Covers with Evapo-Rust Diluted concrete etch (phosphoric acid) is the way I go.



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