Rusty diesel fuel tank question?

[Twobit]

My newly acquired L275 (1983 Vintage) has gritty solids and rust in the diesel tank. The tank is metal, bottom half seems to have a couple of fiberglass patches on outside. It does not leak.
I will be removing the tank and cleaning it out. I want to kill the rust.

QUESTION, Can I use Ospho inside the tank?
If not, please recommend a procedure/tank sealer /liquid liner to use.

Thank you,
Robert

 

[Pau7220]

Take a look at this thread...
It can be done but requires extreme cleaning due to the waxes in diesel fuel.

B2150 Fuel Tank Leaking

Fuel tank rusted inside and it plugged up the fuel filter. Drained the tank, filled with vinegar, let it set 2 days and started cleaning it out with magnet and all. Never saw a leak all this time. Put diesel in and started leaking real bad at the bottom. Starting to take the tank out but some...

www.orangetractortalks.com

 

[Russell King]

See this link for my similar problem and repair

Rusted fuel tank repair

A few weeks ago I had trouble with my L185 acting like it was running out of fuel. Added fuel tried to start= no go! Took off fuel line into filter and no fuel came out of line. Blew air into line and it cleared blockage so I got it running. A couple weeks go by and same deal. I take tank...

www.orangetractortalks.com

Has held up so far. You may contact 007kubotaguy and see if he has a used one for you.

 

[Twobit]

I just sent an email to Ospho asking about using it inside a diesel tank. Let’s see if they reply in the next few days.....

I’ve used the stuff many times, just never in a fuel tank.

 

[D2Cat]

Robert, don't know about using the Ospho inside the tank, but I've use it many times. I'd guess if you let it set a couple of days it will be totally cured out. But you'll hear from mfg. and get their opinion.

I'd get a strong magnet, tie it to a wire (or string) and work it around in the tank. That will pick up any rust particles and keep them out of your fuel filter. I've actually taken a magnet and tied it with baling twine and bring the string up through the fuel lid, and screw the lid on. After a bit of use and juggling around while using the tractor you'll eventually get all loose material out.

 

[Twobit]

OK OSPHO REPLIED TO MY QUESTION
They mention a gasoline tank, but I’ll assume it is OK for diesel too
Here is their reply *********

Robert,



Ospho can be used inside a gasoline tank. You want to apply enough of the Ospho to the inside of the tank so that you can ‘slush’ it around. Leave the Ospho in the tank for 30 minutes, slush every 10 minutes, drain tank, Let stand for 24 hours. Then apply a small amount of gasoline to the tank. Slush it around to remove any powdering or residue left behind. After that you can mount your tank and insert gasoline. Ospho will not affect your fuel system or filters.

Regards,



Stuart Wright

www.Ospho.com