removing rust in carburetor

[olgentdc]

there is a lot of gritty rust in my 400 case-0 matic carburetor..it is cast iron ,,. i have some muratic acid but i recall using it on a aluminum or pot metal carburetor to clean it and the metal started to dissolve ,,..maybe you guys have a better solution ,,.please post back with your ideas.

 

[Tgrasher]

I use end brushes, of different sizes, with a cordless drill. Cast cleans very well with these and any pit that won't come clean can be hit with muratic acid or rust dissolver.

 

[chuck machinist]

(quoted from post at 13:38:03 04/13/23) I use end brushes, of different sizes, with a cordless drill. Cast cleans very well with these and any pit that won't come clean can be hit with muratic acid or rust dissolver.
<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto152251.jpg>

Vinegar 1part , water2parts in a stewing pot .Send your wife to the grocery store first. Medium heat for 1hr .stir carb and related parts occasionally . Then get it off the stove and back to the shop before she returns. do not ask me how I know this! CM

 

[olgentdc]

that sounds like fun LOL ,,. i will let you know how it ALLL Worx out LOL

 

[DanielW]

Yup, muriatic/hydrochloric acid will dissolve zinc, magnesium, and most pot metals. Phosphoric acid (naval jelly) is a little better and generally a better choice for rust removal, but leaves a residue behind that I'm not sure I'd want in my carb. Products like 'Evap-O-Rust' will be fine on most metals but also leave a residue, and generally work like crap. The vinegar solution Chuck Machinist suggested and a soft-ish (brass or nylon) brush is your best option. Don't go at it with a steel brush as it's harder than zinc/pot metal/magnesium.

 

[pcrh]

Hi:

That sounds effective and gentle. I was looking for something to use on my honey extractor. Not quite case related or motor related but I thought I would ask. The cages (metal) which hold the honey frames is what I would like to clean up.

Thanks for letting me but in.

 

[Duner Wi]

I do as Chuck Machinist except I have my
own slow cooker in the shop. I might add a
couple of drops Dawn dish washing soap.

 

[chuck machinist]

(quoted from post at 00:21:40 04/14/23) I do as Chuck Machinist except I have my
own slow cooker in the shop. I might add a
couple of drops Dawn dish washing soap.

OK! A little Dawn for Aroma! CM

 

[teddy52food]

Cook it in lye water. Change batches until it stays clean. Just don't use it on aluminum.

 

[JoeyPorkChops]

The product I have used and have had AMAZING success with
although I hate the name of the product it works extremely well
is Evapo-rust.

it is a little pricey but WELL WORTH IT!!!!

JPC

 

[buzz saw]

(quoted from post at 11:40:07 04/13/23)

(quoted from post at 13:38:03 04/13/23) I use end brushes, of different sizes, with a cordless drill. Cast cleans very well with these and any pit that won't come clean can be hit with muratic acid or rust dissolver.
<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto152251.jpg>

Vinegar 1part , water2parts in a stewing pot .Send your wife to the [u:fceff74570][i:fceff74570]JEWELERY[/i:fceff74570][/u:fceff74570] store first. Medium heat for 1hr .stir carb and related parts occasionally . Then get it off the stove and back to the shop before she returns. do not ask me how I know this! CM

b:fceff74570][/b:fceff74570]

Fixed the wording in your post Chuck.

 

[chuck machinist]

(quoted from post at 00:53:40 04/16/23)

(quoted from post at 11:40:07 04/13/23)

(quoted from post at 13:38:03 04/13/23) I use end brushes, of different sizes, with a cordless drill. Cast cleans very well with these and any pit that won't come clean can be hit with muratic acid or rust dissolver.
<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto152251.jpg>

Vinegar 1part , water2parts in a stewing pot .Send your wife to the [u:dcda851397][i:dcda851397]JEWELERY[/i:dcda851397][/u:dcda851397] store first. Medium heat for 1hr .stir carb and related parts occasionally . Then get it off the stove and back to the shop before she returns. do not ask me how I know this! CM

b:dcda851397][/b:dcda851397]

Fixed the wording in your post Chuck.

THANKS! CM