gunk in diesel tank

   / gunk in diesel tank #1  

Paul1952

New member
Joined
Aug 17, 2005
Messages
18
just wondered if anyone has experienced gunk in the diesel tank? i have had to take the tank off and clean. have a new holland, would run and shut down. filters were being clogged with rubbery type material. has anyone experienced this problem, could it be coming from a breakdown in the tank? first time to encounter this type problem.
 
   / gunk in diesel tank #2  
That sounds like a rubber hose breaking down. Could be coming from your fuel line or if you have a storage tank and hose, the storage tank / hose may be the culprit. I can't believe that it is the tractor fuel tank since it should be specifically designed to contain the fuel. If you have used some fuel additives, it could be some kind of chemical reaction taking place with a bad additive mixture or ratio.
If you use a fuel storage system, install a good fuel filter/water separator system on that so you get clean fuel to your tractor. Drain and flush your tractor, make sure any delivery hoses including fuel hoses on your tractor are rated for the type of fuel that you are using and you should be good to go.
I had the same rubbery type of gunk stopping up my hydraulic filters that it took 5 flushings/oil changes and filter changes to get rid of. I never had a fuel system problem like you described but I always use a 10 micron fuel filter on my fuel pump to make sure I get clean fuel.
 
   / gunk in diesel tank #3  
Black gunk in a take may be biologicals as well.. treat with a biocide if it isn't the tank lining or a hose coming apart. ( which it might be... I have been loosing orings on my diesel fuel systems since our state started blending bio diesel and regular diesel.. etc.. )

soundguy
 
   / gunk in diesel tank #4  
Where is your fuel coming from?

Bulk storage of any kind can have a microbe problem where the fuel and water meet at the bottom of the tank, any condensation buildup will grow microbes where the moisture meets the fuel. It doesn't have to be Bio Diesel though that could accelerate the problem.

Fuel stations use a water detecting paste on the bottom of the dip stick to wattch for water buildup. I had this happen to a 10,000 gal tank and we had to have the interior cleaned and had to dispose of the remaining fuel to get it right again.

Plugged fuel filters [big dual ones] on road tractors in just a few miles...
 
   / gunk in diesel tank #5  
I was addressing 2 different issues.. 1, biologicals, AND , 2 the new biodiesel mixes that seem to have more solvents.. and seem to eat orings faster ( maybee hoses too? )

soundguy
 
   / gunk in diesel tank #6  
I was addressing 2 different issues.. 1, biologicals, AND , 2 the new biodiesel mixes that seem to have more solvents.. and seem to eat orings faster ( maybee hoses too? )

soundguy

I was kinda' agreein' w/ you.

Don't have much experience w/ the bio D as it isn't as common out east -or- my owner operators are stayin' away from it.

I do know the microbes that grow at the fuel/water interface look like disolved rubber. I saw the gunk we cleaned out of our bulk tank.
 
   / gunk in diesel tank #7  
I was kinda' agreein' w/ you.

Don't have much experience w/ the bio D as it isn't as common out east -or- my owner operators are stayin' away from it.

I do know the microbes that grow at the fuel/water interface look like disolved rubber. I saw the gunk we cleaned out of our bulk tank.


I was just trying to clarify my previous post.. I kinda rand the 'biologicals and bio-diesel together.. for the newbies.. mighta been confusing.. etc.

ditto on the biologicals looking like black 'gunk' / rubber.. etc.

soundguy
 
   / gunk in diesel tank
  • Thread Starter
#8  
thanks for the replies....have not added anything to the diesel.....not using the bio stuff, not readily available around here.......just using farm diesel which doesn't sit in the small tank i have very long...will be putting in all back together tomorrow, will keep you posted on how it goes.
 
   / gunk in diesel tank #9  
Black gunk in a take may be biologicals as well.. treat with a biocide if it isn't the tank lining or a hose coming apart. ( which it might be... I have been loosing orings on my diesel fuel systems since our state started blending bio diesel and regular diesel.. etc.. )

soundguy

So you cannot buy 'regular' diesel anymore Chris?? with ULSD biologicals are a huge issue if you do not treat the fuel, but I never really thought about the negatives since we do not run or buy biodiesel.
 
   / gunk in diesel tank #10  
All the stations in our area are selling blended bio and regular diesel.

soundguy
 

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