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post #1 of 15 Old 03-31-2018, 03:41 PM Thread Starter
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Case Fuel Sight Guage

Came up with an easy way to see the fuel level for these stock black tank from before the windows and somewhat clear tanks came out.

I just had to go to McMaster and get this part. https://www.mcmaster.com/#5121k931/=1c7nwnr

Then a couple grommets and a couple holes. I need to put some kind of reducer in the end of the hose to limit splash out, not likely and bugs or something from getting in.
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post #2 of 15 Old 04-20-2018, 04:13 AM
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Re: Case Fuel Sight Guage

Tell me, why did you use a T for the sight tube
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post #3 of 15 Old 04-20-2018, 08:54 AM Thread Starter
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Re: Case Fuel Sight Guage

I had to use a tee. How else would I get fuel into the added clear fuel line? Maybe I am missing something in your question.
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post #4 of 15 Old 01-26-2019, 10:33 AM
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Re: Case Fuel Sight Guage

What did you use on the ends of the clear tubing?
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post #5 of 15 Old 01-26-2019, 10:56 AM
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Re: Case Fuel Sight Guage

Quote:
Originally Posted by ssmewing View Post
I had to use a tee. How else would I get fuel into the added clear fuel line? Maybe I am missing something in your question.
I am not the one that asked the question, but would you have not been better off using a 90*?..how did you seal off the other end of the run that obviously must point down...as far as the upper end of the tube...if you seal that off you will cause pressure and the fuel will not be able to rise into the column you created...put another 90* at the top of the side of the tank and feed it back in...pretty much like a sight glass on a steam boiler to see the water level
Also ...those fittings made of polypropolene are not suitable for use with gasoline
file:///C:/Users/MARK&L~1/AppData/Local/Temp/polypropylene-chemical-compatibility-chart-from-ism-2.pdf

Last edited by MARK (LI); 01-26-2019 at 11:12 AM.
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post #6 of 15 Old 01-26-2019, 10:57 AM Thread Starter
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Re: Case Fuel Sight Guage

Sorry, I didn't do a very good job on this post. I am lacking in details to the point of confusion.

I linked to a part and that part is a plastic tee for 1/4" fuel line. The tee is screwed into the bottom of the tank where there is a 90-degree fitting now. So, instead of one outlet on the bottom of the tank, there is two.

So, one end of the clear line goes to the tee on the bottom of the tank. The other is open, at least a tiny bit. What I did is I had some 1/4" round stock that I ground a flat on one side. I stuck the round stock into the end and the flat spot allowed the line to vent. This is needed to see the fuel level.

The other ways it could be done are numerous. You could add a tee into the fuel line anywhere on the tractor. This would allow you to put the clear fuel line anywhere on the tractor at the same level as the fuel tank and know how much fuel you have left. That includes the dash tower.

If the clear fuel line at the tank was connected to the tee on the bottom and then a second bunghole for a fitting was added to the top of the tank, the clear line would be able to be a closed loop.

Hopefully, this helps.
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post #7 of 15 Old 01-26-2019, 11:15 AM
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Re: Case Fuel Sight Guage

So what prevents liquid from draining out the vent that you created?...It is below the level of the fuel in the tank...doesn't it leak out?
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post #8 of 15 Old 01-26-2019, 11:32 AM Thread Starter
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Re: Case Fuel Sight Guage

Now we are just not connecting.

You can see the top end of the clear line is laying on top of the fuel tank, right?
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post #9 of 15 Old 01-26-2019, 11:35 AM
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Re: Case Fuel Sight Guage

I do see that....and the end of the fuel line is open...that is not where you inserted the 1/4 round stock, which you created a flat spot on..
so...it sounds as though you have the "bull" ( the threaded extension) screwed into somewhere near the bottom of the side of the tank where there had previously been a 90* fitting .....attached your hose to one side of the "run" and brought it up to the top.....so it sounds like the piece of stock was inserted to the other end of the run...which points away from the direction of the clear line...unless I understand it incorrectly...so doesn't that leave the vent you created below the fuel level...pretty close to the bottom of the tank?

Last edited by MARK (LI); 01-26-2019 at 11:44 AM.
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post #10 of 15 Old 01-26-2019, 02:01 PM
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Re: Case Fuel Sight Guage

One could also use a 90deg ell at the top of the tank. One end in the tank above the fuel, other connected to you line. Provides venting and positively blocks anything from entering. I think the tank may be thick enough to just drill and thread since it would be above the fuel and not have to seal liquid in.

Or, put it in the cap, I know that is thick enough, and just unplug the line when adding fuel.

Great idea BTW!

Similar the JD's level check tube on transaxles. But their tubing tends to cloud so badly that newer fluids are really hard to see, only the old red Type F is clearly visible.
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post #11 of 15 Old 01-26-2019, 02:56 PM
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Re: Case Fuel Sight Guage

Great idea. Hope it works well for you without clouding. If it were me, I'd simply use a piece of nylon stocking (two or three thicknesses) and clamp in onto the end keeping the top of the hose as high above the tank as possible for those occasions that you're at extreme angles and have sloshing fuel.

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post #12 of 15 Old 01-28-2019, 11:02 AM Thread Starter
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Re: Case Fuel Sight Guage

Quote:
Originally Posted by MARK (LI) View Post
I do see that....and the end of the fuel line is open...that is not where you inserted the 1/4 round stock, which you created a flat spot on..
so...it sounds as though you have the "bull" ( the threaded extension) screwed into somewhere near the bottom of the side of the tank where there had previously been a 90* fitting .....attached your hose to one side of the "run" and brought it up to the top.....so it sounds like the piece of stock was inserted to the other end of the run...which points away from the direction of the clear line...unless I understand it incorrectly...so doesn't that leave the vent you created below the fuel level...pretty close to the bottom of the tank?
The partial plug I added is in the end that you see. I did it after the photo.
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post #13 of 15 Old 01-28-2019, 11:10 AM
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Re: Case Fuel Sight Guage

Quote:
Originally Posted by ssmewing View Post
The partial plug I added is in the end that you see. I did it after the photo.
I would just install a float type Gage with a digital read out. This looks like a rig job
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post #14 of 15 Old 01-28-2019, 11:14 AM Thread Starter
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Re: Case Fuel Sight Guage

Here is a link to brass if you don't think the poly ones are good enough.

https://www.mcmaster.com/44555k162
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post #15 of 15 Old 01-28-2019, 11:41 AM
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Re: Case Fuel Sight Guage

I wouldn't drill any extra holes to feed it back, possibly you could go into the top of the fuel tank lid?

For capping use a fuel filter - that way you screen for bugs and such and still let the tube vent. That or something like the sintered bronze filters common on vacuum pump.
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