Cleaning gas tank

Could anyone recommend a solvent I could use to clean out a gas tank?
I have tried to rinse it out with gas but cannot get it all.
Working on a MF135 and it will crank up fine. It will run okay for about ten minutes then acts like it ran of gas.. Let it sit for a few minutes and it
will crank right up
 
Sounds more like the fuel filter is plugged however the tank is the culprit. I flushed out the auxiliary tank on my jeep by disconnecting the fuel line on the bottom of the tank and letting it drain into a bucket. I then poured the same gas through a fine paint strainer back into the tank three times and it finally cleared up. Then I put a new fuel filter on it.
 
Pull the carb drain plug and make sure you have a good steady flow of gas out of it that will fill a pint jar in less then 3 minutes. If it will not do that work your way back to the tank till you find where it is clogged up. Many carbs have a filter screen in the inlet elbow which can be clogged or the screen in the sediment bowl or the screen that stick up in the tank
 
Whenever I get a nasty gas tank in on a tractor I take them to my local auto machine shop and have them boil it in their hot tank. Removes EVERYTHING.... do not attemp on tanks that are brazed or soldered. Then use a good quality tank coating like the Eastwoods brand tank coating. Paint exterior and your good to go. My machine shop usually charges about $20 to boil a tank... saves you the mess and much nicer finished product.
 
Merci Acid,Walmart will have it in the paint section(or any paint store/box store). Mix it about 50/50 and turn it over every 12 hours. Then rinse the heck out of it with lots of water.
 
(quoted from post at 19:01:31 07/19/17) Merci Acid,Walmart will have it in the paint section(or any paint store/box store). Mix it about 50/50 and turn it over every 12 hours. Then rinse the heck out of it with lots of water.
s that muriatic acid?
 
DO NOT USE MURIATIC ACID!!!! It will eat the steel and not touch the sludge. They use muriatic acid to etch metal plates for printing.

Its a better bet to dump in a half gallon of lacquer thinner or acetone and a couple of handfulls of nuts and screws. Then wire the tank to the wheel of your tractor and go chop some corn. As the metal parts bounce around inside they will dislodge and liquefy the rust and varnish. The solvent will do its thing and then you pour out the resulting goo and rinse the tank. If the tank has been rusted badly on the bottom you will discover that with this technique. All the pinholes will be revealed. That is when you need to do the tank sealer coating on the inside. I have also attached a tank to a barrel type cement mixer and just let it run. Do it some where far away from people who desire quiet.
 

Had a rusty fuel tank clogging up the filters in a couple of weeks. Went to the wrecking yard and got a glass bowl filter off a Toyota truck. That had so much capacity that I drained it every year or so...Try it,then you won't have to mess around with sealers and or trying to clean it....
 
(quoted from post at 20:49:57 07/23/17) DO NOT USE MURIATIC ACID!!!! It will eat the steel and not touch the sludge. They use muriatic acid to etch metal plates for printing.

Its a better bet to dump in a half gallon of lacquer thinner or acetone and a couple of handfulls of nuts and screws. Then wire the tank to the wheel of your tractor and go chop some corn. As the metal parts bounce around inside they will dislodge and liquefy the rust and varnish. The solvent will do its thing and then you pour out the resulting goo and rinse the tank. If the tank has been rusted badly on the bottom you will discover that with this technique. All the pinholes will be revealed. That is when you need to do the tank sealer coating on the inside. I have also attached a tank to a barrel type cement mixer and just let it run. Do it some where far away from people who desire quiet.

Sorry to disagree, but I and several other folks I personnaly know have used muriatic acid with great success. Zero damage to steel.
 

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