cleaning carbs - Mercedes-Benz Forum

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post #1 of 11 (permalink) Old 09-23-2015, 09:45 PM Thread Starter
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cleaning carbs

decided to take the carbs apart for a nice cleaning and noticed a gummy build up inside. what would be the best product to clean it off, would a varnish or even gas work. or should I use a carb cleaner. thanks jimmy
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post #2 of 11 (permalink) Old 09-24-2015, 08:25 PM Thread Starter
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anyone......anyone......
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post #3 of 11 (permalink) Old 09-24-2015, 10:01 PM
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cleaning carbs

cleaning carbs-imageuploadedbyautoguide1443153622.641384.jpg

I like having two if these one gallon containers. Don't leave a leather accelerator pump in there for too long.

Edit: I bought the two 1-gallon cans at walmart based on a local friend's recommendation (and because they are open so late), but see that this stuff is available at most auto parts stores like autozone, pep boys, etc.

The zenith carb parts I used these for just barely squeeze into the cans, but they do. I normally leave stuff sitting in the cans for about a week, and most of the crud comes right off with a brush. I make an effort to drip any drops of fluid back into the can before washing the part with water in the utility sink in my basement. Sometimes the part goes back in the can for a second soaking.

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Last edited by Fonzi; 09-25-2015 at 06:54 AM.
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post #4 of 11 (permalink) Old 09-25-2015, 07:01 PM
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I like using a cleaner like Fonzi shows above and put it partially disassembled in a cheap ultrasonic cleaner from Harbor Freight and you are done in 20-30 mins. A mixture of Seafoam and Valvtec Carbon Free does a good job.
Will
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post #5 of 11 (permalink) Old 09-25-2015, 07:49 PM Thread Starter
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Fonzi. Are you serious? I thought 5-10 mins max. Wow. I guess seeing that gou have done it i will follow your advice. Thanks. Jimmy
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post #6 of 11 (permalink) Old 09-25-2015, 08:19 PM
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Fonzi. Are you serious? I thought 5-10 mins max. Wow. I guess seeing that gou have done it i will follow your advice. Thanks. Jimmy

I wasn't in a rush. You can probably use carb cleaner but you will probably use a lot of it really quickly and not get everything really cleaned out. If you are looking for the quick fix, then my method isn't the way to go.

I have a thread somewhere where I tore down the dual zenith carbs on my 1970 250c (basically a parts car I was trying to make run). It was a fun learning experience, and the carbs were really clean, but I never got the car to do anything more than drive around the block. Don't mess with to he settings too much!!

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post #7 of 11 (permalink) Old 09-26-2015, 07:52 AM
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Fonzi's right. Chem dip is the way to go. partially disassemble, make sure you have a rebuild kit, and leave them in there for a day or so. They will look great.

Currently: 1967 250 SL, 1963 220Sb, 1965 300SE Lang, 1971 280SE parts car, 1972 Alfa GTV, 1965 Alfa Duetto, 1993 BMW R100R
Past: 1971 250 C, 1985 300 TD, 1967 250 S, 1968 280 S,1981 300 D, 1982 280CE, 3 Facel Vegas, Borgward Isabella Coupe, Alfa 2600 Sprint, Volvo P1900 (yes), numerous less interesting Volvos, ...
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post #8 of 11 (permalink) Old 09-26-2015, 10:44 AM
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And don't forget to buy the full repair kits for about $35 each. You will need new gaskets for your reassembly, maybe other parts too.

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post #9 of 11 (permalink) Old 09-27-2015, 07:56 PM Thread Starter
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Im worried about taking them competely aprt because i wont know how to put them back together. Can i partially take them apart and dip them. Basically take the 3 main parts and juzt dip them. Thanks jimmy
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post #10 of 11 (permalink) Old 09-27-2015, 08:03 PM
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Im worried about taking them competely aprt because i wont know how to put them back together. Can i partially take them apart and dip them. Basically take the 3 main parts and juzt dip them. Thanks jimmy

Take one apart at a time. Take lost of pictures. If you really get stuck, you've got the second one as an example.

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