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Hey all you 200 fuel tank experts

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=173529
Printed Date: 27 Jul 2025 at 10:14am
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Topic: Hey all you 200 fuel tank experts
Posted By: captaindana
Subject: Hey all you 200 fuel tank experts
Date Posted: 14 Aug 2020 at 5:37am
Ok so here’s my issue.   Concerning one of the worlds nicest 200’s, I have been plagued with crud in my fuel tank this year. I drained it in the middle of 1st cutting but draining it doesn’t exactly mean cleaning it real good because it’s hard to shake it and scrub the insides really good. I installed 1” riser pipes in both outlet fittings so as to not draw fuel from the tanks bottom. When it was empty it looked really clean but baling 2 nd cutting yesterday she lost power again due to low fuel flow. I’m thinking of just pulling the 2 fuel outlet fittings again and let the 50 gallons gush out but that’s pretty much what I did in June. Is it a horrible job to pull the tank off with my big LaPorte cab sitting on top of it? Looks like the XTIII’s going to finish second cutting just as she did first cutting. Ian’s running the 315 with the 7030 which is a beautiful rig to watch when we’re going at it! Thanks, Dana

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Blue Skies and Tail Winds
                          Dana


Replies:
Posted By: PaulB
Date Posted: 14 Aug 2020 at 6:23am
use a clear hose to siphon it out.  Then remove those stand pipes and pressure wash the inside of the tank the best you can. After that use a blowpipe in an air hose along with a shop-vac to remove anything still moving around.   After you get it clean DON'T put the stand pipes back in, they only allow the crud laying on the bottom to breed. Clean you sediment bowls OFTEN, that's what they're there for.

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY

Posted By: DrAllis
Date Posted: 14 Aug 2020 at 7:23am
Power washing thru the fill neck and remove the fuel gauge and aim in there too. 40 plus years of gunk are laying in the bottom of that tank. No sediment bowls on a 200

Posted By: injpumpEd
Date Posted: 14 Aug 2020 at 7:35am
It could be a deeper pump issue, don't forget the Roosa DB flex ring breaks down and the pieces plug the return causing it to lose power and eventually die sometimes. May run fine for a few minutes after shut off for a little while. Check the return circuit.

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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!

Posted By: lowell66dart
Date Posted: 14 Aug 2020 at 7:47am
I had a 200 once that someone had added a big sediment bowl to the fuel system. I removed it when I pulled the tank to repair a small leak and clean but it may get you buy till haying is done.

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AC 6080 (8030,7060,200,175,D-17HC, 6040,160,6140 all gone) Farmall 1066 & 656 Hi-Clear (for sale), White 2-62 High Clearance, JD 4255 Hi Clear.

Posted By: Dusty MI
Date Posted: 14 Aug 2020 at 7:48am
You can buy a D cell electric pump for filling small engine gas tanks. It's rated to transfer 6 quarts a minute. 
That might work to empty the tank.
I see Harbor Freight has them for under $10.

Dusty


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917 H, '48 G, '65 D-10 series III "Allis Express"

Posted By: Dave(inMA)
Date Posted: 14 Aug 2020 at 7:56am
I have a transfer pump similar to the one Dusty described. Powered by my cordless electric drill. Came from Harbor Freight for small money. Imagine you can then filter the diesel, but that's something I know nada about. Hope it goes well.

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WC, CA, D14, WD45

Posted By: Dakota Dave
Date Posted: 14 Aug 2020 at 8:02am
I had the same problem with my 190 fought with it for a year. There are two baffles in that tank the only way to get it clean is take it off remove the sediment bulb assemblies and the sending unit prop it up at an angle pressure wash thru the sending unt hole and you'll see the crud run from between the baffles suck without the filler hole. I took mine off with the alllis cab inplace just had to pry inside a piece of PVC you can guide it around when draining the tank and vacuum alot of the crud at the same time. on the left fender a little to get it past the bump in the fender.once you get all the stuff on the bottom removed and the cab filler plate off itll slide back to come out. If you put your siphon hose

Posted By: injpumpEd
Date Posted: 14 Aug 2020 at 8:27am
E85 is a great cleaning solvent for tanks, and lines to get the cruddy old fuel residue out. Just let it soak!

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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!

Posted By: calico190xt68
Date Posted: 14 Aug 2020 at 1:16pm
I just want to add that I use my 190XT to bale hay and this year I have had to clean out the sediment bowls 3 times.  I know some hay is getting into the tank but the water I was seeing was confounding me.  I drained the tank couple of years ago but never deinstalled it or did anything like add a tank cleaner.  However, it ran fine until this year up until about beginning of July.  I noticed that my sediment bowls were filling half way up with water.  Due to barn space issues, I have left it sit outside for past few months.  I now believe my problem is related to forming condensation over night in the very hot part of July this summer with a mostly empty fuel tank.  I happened to read in the 7010 manual to fill the fuel tank at the end of the day rather than the next day.  i was not doing this.  The other thing I noticed is that the water would combine with hay particles and create kind of a gel and this was sticking to my sediment bowl screen not letting fuel flow.  The hay particles are a consequence of filling the tank in the field with jugs when it is far from home.  I am keeping the tank full now while outside and so far it hasn't happened. 

I hate removing those sediment bowls under the fuel tank and that is nice to know the 200 doesn't have any.  I did it the last time in the dark because you can't see what you are doing during daylight anyway.  Hope you get it fixed.


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80 7010, 80 7020. 67 190XTD Series I w/500 Loader, AC 2000 Plow, Member Indiana A-C Partners, Member TAC

Posted By: DougG
Date Posted: 15 Aug 2020 at 7:31am
Those baffles make cleaning a 200 and XT tank a bear have heard of guys cutting holes in the sides and rewelding them , said it was the easiest after fighting that problem


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