Gas sitting in carb 5+ years - help!

[rgunlock]

This carb was a rebuild that I put on my truck 5-6 years ago. Worked fine at the time, but my plans for the truck morphed/expanded and it hasn't been started in all this time. I know better, but didn't do anything about the gas in the carb.

Of course, now that I'm ready to get it running again, there are problems. Disassembled the carb to find this (1st three pictures). Float wouldn't move, accelerator pump stuck, basically anywhere containing fuel was built up in this white residue. Soaked it a couple of times in Berryman's Chem Dip which did very little. Did a lot of scraping and brushing, then used an aerosol carb cleaner and still have what you see in the 4th picture. Pretty heavy residue.

So, looking for something that will clean this crap and leave me confident that I've also got all the small passages, etc. clean. Is it time to get another carb? Is there a product to dissolve and clean this?

[Big Port Jimmy 6]

soak it in hot, almost boiling Pine sol.

[Dead Parrot]

Use the large metering rods as tests. Put one in some Pinesol and the other in some vinegar. Judge the results. If neither works on to next plan.

Carb is probably toast but you have little to lose at this point. Worst case, you have a bunch of small spare carb parts.

[rgunlock]

Thanks for the suggestions - I'll give them a try.

[cadillac_al]

I think a good soaking in something should bring it back to life. I put some Pine Sol in my fiberglass bathtub in an attempt to remove hard water stains and it started eating away at the fiberglass. That is pretty strong stuff, only about a 20:1 ratio too. I would try it on a carb.

[Jeepwm69]

I boil mine in lemon juice.

[pontgta]

This stuff is all i use. i have tried regular carb spary, but have had zero luck. Since i have used this gum cutter , no issus.




Last carb I opened was black, and this stuff ate thru it with no problems

[truckin 79]

Back in the day all people used was Gas to clean parts. I would put a little gas in there and a small brush and it will clean right up.
Well ventilated area though

[rgunlock]

Thanks for all of the suggestions! I did try scrubbing with gasoline and a purple scotch pad, but that didn't seem to have much affect. Soaked for a while in white vinegar, which also seemed to have little effect. Soaked in Pine Sol for an hour or so and this actually worked pretty well, even without getting it hot. Never got to the lemon juice.

[Jeepwm69]

This was the carb bowl on a late 70's Honda Generator that had been sitting up for several years. Parts for it are mostly no longer available, so I had to make the existing carb and gas tank work.

Boiling in lemon juice worked great on the carb.

Had to use Muriatic Acid in the tank. Nothing else would cut the tar-like substance on the bottom of the tank.