biodiesel gunk in fuel tank
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=108957
Printed Date: 29 Jun 2025 at 11:54am
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Topic: biodiesel gunk in fuel tank
Posted By: grinder220
Subject: biodiesel gunk in fuel tank
Date Posted: 13 Jul 2015 at 5:04pm
So my MM Vista G1000 aka "Big Mo Nasty" has been sitting for 2 years with bio-diesel in the tank waiting for me to replace a scored piston. I'm currently working on getting it back up and running and need to get the gunk out of the tank. Any suggestions? Its a 52 gallon tank with a fill hole the size off a WD or D17 so there isn't a whole lot of room to work with there. 
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Replies:
Posted By: jaybmiller
Date Posted: 13 Jul 2015 at 5:20pm
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without knowing/seeing the tractor.... could you use one of those 'diesel fuel' rated 12 volt 'transfer' pumps to suck it out into TWO 45 gallon drums ? I might be tempted to siphon it but... a pump sounds a whole lot better and safer ! Jay ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: grinder220
Date Posted: 13 Jul 2015 at 5:24pm
| I already pumped all the fuel out but the gunk which is like sticky tar is stuck to the bottom. |
Posted By: Matt (Jordan,MN)
Date Posted: 13 Jul 2015 at 5:43pm
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I have used a steam cleaner to wash out fuel tanks before. You also could try some E85. It's eats Biodiesel growth. I got a few injection pumps to work again after running E85 through them. Matt ------------- Owner of Matt Scott LLC Specializing in NOS and used Allis Chalmers tractor & implement parts & liturature and Magneto Repair http://www.mattscottllc.com/ |
Posted By: DougG
Date Posted: 13 Jul 2015 at 5:49pm
| I done this on an XT last winter, put a few gallons of lacquer thinner in it, slosh it around, let set a few days then power wash it out,, be good as new |
Posted By: Auntwayne
Date Posted: 13 Jul 2015 at 10:57pm
| Get a "SMALL" can of carb and choke cleaner, spray a little bit into the tank and let drain. Instant gratification . |
Posted By: JohnCO
Date Posted: 14 Jul 2015 at 12:37am
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I used E 85 on a Hesston crawler (Fiat) tank, took several batches but finally got it clean. Learned the hard way to only use bio diesel in the summer and then run off road diesel for the last couple tanks. Or drain the tank at the end of the season before it has a chance to gunk up. Good luck!
------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant |
Posted By: grinder220
Date Posted: 14 Jul 2015 at 6:58am
| Think I'll give the E85 and a pressure washer a try. Thanks for the tips |