Cleaning old gummy fuel from a fount

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Doug_L
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Cleaning old gummy fuel from a fount

#1

Post by Doug_L »

Hello gentlemen. What do you guys use to clean out a fount of old gummy tar like fuel? This is a 80 year old 237A lantern that may have used kero or Coleman fuel. I scraped some out with a wood stick but I want to get it all out. I have it soaking in acetone at the moment.
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sleebus
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Re: Cleaning old gummy fuel from a fount

#2

Post by sleebus »

If it's a 237, it was filled with Kerosene. Denatured Alcohol will get that stuff out in a jiffy. Just fill it up and let it sit. It will dissolve it with no physical effort on your part. Works like magic.
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Ridge Runner
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Re: Cleaning old gummy fuel from a fount

#3

Post by Ridge Runner »

Are you seeing any action using the acetone?

Typically denatured alcohol is my go-to. Just don't leave it sit on painted surfaces or decals--wipe it up pretty quickly. A little shake, rinse, repeat is sometimes needed. You can filter it throught some paper towels to get any large debris out and reuse it.

I have also used hot citric acid and lye--not together, though! Lye comes with it's hazards, too--protective gear for skin and eyes is a must. It will also damage paint and decals.
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JimL
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Re: Cleaning old gummy fuel from a fount

#4

Post by JimL »

I use very hot to boiling citric acid. I find it does a great job of eliminating the residue as well as any rust at the same time. I haven't tried it with old kero residue, but would expect the same results.
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DougA
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Re: Cleaning old gummy fuel from a fount

#5

Post by DougA »

A trick I learned on these very pages for dealing with old, crummy fuel in a fount is dishwasher detergent which has lye in it. A friend once gave me a 228 tranny E/F that had a fountful of old RUG and I used the dishwasher soap trick to clean it out. I filled the fount and let it soak overnight and did that two or three times.
DougA  ... fettler and keeper of a family collection of nickel: a 249, a pair of 237s, and a 1938 228B, along with a late 1979 red 200a.  Then two more turned up, a 1941 243A and a 1944 242C, and now there's a b-day 200A lantern, too!.
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Chucker
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Re: Cleaning old gummy fuel from a fount

#6

Post by Chucker »

I've used carb spray.

Spray it for about 5-10 seconds, add a few ounces of Coleman fuel and let sit. After a half hour dump it out. Rinse with old Coleman fuel, repeat until clean.

On really thick black gunk in a fount I've had success with Muriatic Acid. Using all applicable safety precautions, it can sit for 15-20 minutes and then rinse with hot water. Rinse with Denatured Alcohol then some fresh Coleman fuel.
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58idaho
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Re: Cleaning old gummy fuel from a fount

#7

Post by 58idaho »

Carb cleaner works good. Though on painted founts I have had it remove paint.
Don
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Doug_L
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Re: Cleaning old gummy fuel from a fount

#8

Post by Doug_L »

Denatured Alcohol seems to have worked well using the BB shake method. It took about 15 rinses using a screened funnel until it came out clean. Not sure what fuel was in there, RUG Kero or CF. Just because its a 237A I can't assume the previous owner used kerosene. What ever that was in there Ill use it as weed killer.
Thanks Gentlemen
Doug
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