carb boiling?

Stickler

Petty Officer 2nd Class
Joined
Feb 5, 2012
Messages
117
Hi everyone,i just pulled my carb off my cd11,removed all gaskets,packing, and welsh plug,i sprayed it down with carb cleaner in every nook and cranny,then scrubbed it with a tooth brush everywhere i could get it,isprayed it out with compressed air and now the parts are soaking in carb cleaner overnight.
My buddy had mentioned to me a while ago about boiling the carb in distilled water for 30min as the final step of my cleaning, ive never heard of this, and am curiouse to know if anyone has done this before or if it is good practice or a unnecessary process,thanks for your time. STICKLER :)
 

fireman57

Captain
Joined
Aug 24, 2004
Messages
3,811
Re: carb boiling?

They used to boil them years ago but if you take a piece of very fine wire after you have soaked them overnight and run it thourgh every orafice you can find and then blow it all out you should be fine. The new solvents are very good.
 

wrench 3

Commander
Joined
Aug 12, 2012
Messages
2,108
Re: carb boiling?

The only thing that makes sense to me is that commercial carb cleaner that you soak the parts in had to be washed off with very hot water to neutralize the corrosive action, before you blew it out with air. With an over the counter aerosol cleaner this step is not needed.
 

Bob_VT

Moderator & Unofficial iBoats Historian
Staff member
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May 19, 2001
Messages
26,065
Re: carb boiling?

I have found a can of Spray Air used for computers is very controllable and good for blowing out the idle circuits and drying out the tiny spots.
 

Stickler

Petty Officer 2nd Class
Joined
Feb 5, 2012
Messages
117
Re: carb boiling?

Thanks for the responses everyone, sounds like its not that necessary,was just curious if there were any benefits in doing this.When i disassembled the carb there was a small threaded brass plug that i was able to remove, but there was a second one that was a bit bigger and aluminum,but i was unable to remove it and am worried it might break off if i twist any harder, so im wondering if i need to remove it and clean in behind it before i start rebuilding, or can i get away without removing the one threaded plug.
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: carb boiling?

The small brass plug is the drain plug. It should be removed to ensure the passage is clear.

I soak the carbs in Pine Sol. It works well to clean, and is less damaging than carb soak. I do alot of carbs, so have to look out for your body right. Plus my wife likes the smell better!

Then wash with hot soapy water, and blast dry with compressed air. I then shoot aerosol carb cleaner through all passages, wash again in hot soapy water, then final dry with compressed air. Keep it clean while you rebuild and you should be good to go.

I also like to run a bead of sealer around the welch plugs. Air leaks there later are hard to troubleshoot and will prevent a lean condition. Some guys use their wife's clear nail polish for this.
 

Stickler

Petty Officer 2nd Class
Joined
Feb 5, 2012
Messages
117
Re: carb boiling?

Thats a good idea, i normally use sealer around mine before i tap into place, but nail polish would be pretty good to use also, would you put it around the edge of the welch plug as with sealer , or on the seam after it is installed in the carb.
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: carb boiling?

Just brush on the seam afterwards. Just want to prevent an air leak.

I bought a motor the other day that the previous owner used pink nail polish.....I would personally stick with clear, lol.
 

Stickler

Petty Officer 2nd Class
Joined
Feb 5, 2012
Messages
117
Re: carb boiling?

Yeah, id probably stay away from pink myself, but i guess you have to use whats at your disposal, a small bit of crazy glue would probably work, might be too strong though, but it is fuel resistant, i have read other posts of people using crazy glue to refinish their cork floats.
 
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