adjusting fuel sensor

1959 - 1978, M151, M151A1, M151A2, Technical questions and discussions, regarding anything related to the M151.
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Hell On Wheels
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adjusting fuel sensor

Post by Hell On Wheels » Mon Apr 30, 2018 7:45 pm

Beside emptying the fuel tank and bending the fuel float arm, what is the easiest way to adjust the fuel gauge to the correct reading?
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

Rickf
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Re: adjusting fuel sensor

Post by Rickf » Tue May 01, 2018 5:15 am

There was another member on here that came to the conclusion that some of them just flat out will not read right no matter what. He tried everything you could do both electrical and mechanical and his never would read past 1/2 tank. It would read from there to empty. The aftermarket sensors that are out now are garbage and for the most part there isn't much you can do besides make sure the tank is grounded well, make sure the sensor ground is grounded to the tank and maybe add a second ground to the body. If you want to bend the arm you may be able to reach in the fill hole if you have small arms but it is probably a lot easier to take the unit out the top and do it there.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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Hell On Wheels
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Re: adjusting fuel sensor

Post by Hell On Wheels » Tue May 01, 2018 8:08 am

That is the issue I have the gauge only reads 1/2 and below. I have a new harness and clean grounds. I think it is the float devise as you mention. I think I'm being to picky.
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

Rickf
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Re: adjusting fuel sensor

Post by Rickf » Tue May 01, 2018 1:41 pm

Do some searches on here and on the g838 and you should find his thread. He tried everything and was very detailed in what he did.

Found it, See below.

http://www.g838.org/viewtopic.php?f=3&t=11444
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

hambone
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Re: adjusting fuel sensor

Post by hambone » Tue May 01, 2018 4:33 pm

Rickf wrote:
Tue May 01, 2018 1:41 pm
Do some searches on here and on the g838 and you should find his thread. He tried everything and was very detailed in what he did.

Found it, See below.

http://www.g838.org/viewtopic.php?f=3&t=11444
I agree with what Raymond said in the above post, I've replaced everything trying to make one accurate, of the few I have, none are completely accurate.


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Hell On Wheels
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Re: adjusting fuel sensor

Post by Hell On Wheels » Wed May 02, 2018 8:15 am

I'll check into this yeah I understand what can we expect for 1966 technology.
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

markrdje
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Re: adjusting fuel sensor

Post by markrdje » Wed May 02, 2018 10:12 am

Go to Fuel Level Mystery, by Muttero, 11-4-2012, on the g838 site
change user name to mark

Rickf
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Re: adjusting fuel sensor

Post by Rickf » Wed May 02, 2018 1:48 pm

1966 technology worked quite well when it came to this stuff, it is the second millennium Chinese crap that does not work well. They have the ability to make very high quality components but they are not going to as long as people pay top dollar for crap! The people need to tell their suppliers they are NOT going to buy Chinese crap anymore unless it improves and then they HAVE to abide by that. If the sales fall flat then the Chinese will improve the product. That is the only way it will happen.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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