Topic: Rust in Tank?

[gravano]

So I had a carb that was overflowing. I cleaned it then it started overflowing again. I'm gonna get an inline fuel filter, but do you think my problem is rust in the tank that's getting into my fuel line and f*&%ing up my carbs?

[le_sterls]

By no means is it impossible. I'd run a fuel filter until you get some time to clean out that tank.

[Johnie]

Yah, my tank looked good through the fill hole. Had the same problem as you. Take a look what came out below. I flushed it out for over an hour and put in filters just to be sure. On the empty tank it now looks nice and silver. If it is bad you should have it lined.

[moseyboy]

O'reillys auto parts now have a product for removing rust in tanks, otherwise you can use muratic acid which is used for concrete work but you have to be careful with that stuff but it works, dilute it to at least 50/50 and neutralize when done with a baking soda and water mix or the acid will keep eating.  It's cheap, $5-10 a gallon.  Tried it myself and the sh*t works good, take all your hardware off the tank and duct tape the openings, shake or agitate the tank and let it soak awhile, a half hr to an hr shaking 1 or 2 times in between.  Final word- use carefully!
                                                              Good Luck, moseyboy

[flybox1]

could be...but it depends where on your carb is it overflowing.
have you taken your tank off and drained it to see what comes out?
do the easy sht first.
even if youget it super clean, that sht is still in the carbs.
clean them really well, and while you're at it..

carb things you should check:
crack in overflow stand pipe
float height off
bad/stuck float valve
pinched bowl gasket

[gravano]

Thanks again everyone.
This problem is an enigma. I cleaned the other carb that was overflowing thoroughly.
Now it isn't leaking but it's running really choppy and needs a lot of choke.

Is it possible they came out of sync? Then engine is still strong. Hope I can get it back in shape.

[vern401]

No not unless you messed with the settings.... I would say there is something in the carbs someplace that has a port plugged up. Do a real good cleaning of them and the tank. I also tape magnets to the fuel filter and jimmy rig a way to have one connected to a wire in the tank so that it will help collect any rust residue that may develope in the future. the wire makes it so that I can inspect and clean the magnet off when needed.

[le_sterls]

No not unless you messed with the settings.... I would say there is something in the carbs someplace that has a port plugged up. Do a real good cleaning of them and the tank. I also tape magnets to the fuel filter and jimmy rig a way to have one connected to a wire in the tank so that it will help collect any rust residue that may develope in the future. the wire makes it so that I can inspect and clean the magnet off when needed.

I've never thought of that... Good one!

[curtis]

if using acid to clean your tank i put a piece of chain in while sloshing it around helps to break up the #$%*. and u might want to fill with fuel right away because once the air hits the bare metal it will rust real fast. i spray wd-40 in them to coat it that helps keep rust down. ow ya dont breath in the acid fumes nasty stuff

[gravano]

I've been cleaning out the bowls and the jets as well as the floats, but do I need to remove the rack and adjust/clean the tops of the carbs as well?

[vern401]

With rust you will need to do a full cleaning again. the rust powder gets into the jet channels and will plug the heck out of them. An ultrasonic cleaning would be the best if you have one or know someone with one.

Used motor oil can also be used to slosh around in the tank to coat it after cleaning it to prevent flash rusting.