Author Topic: 2001 EV low fuel sensor installation.  (Read 231 times)

Online sdcr

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2001 EV low fuel sensor installation.
« on: September 14, 2021, 05:09:40 PM »
After shorting and burning out my original sensor, I located a good used one. After removing the original, I inserted the replacement, and snugged the fastener to about 3-5 lbs. after a short test ride, I discovered that the sensor is leaking, just a few drops, enough to be dangerous.

I did not see a rubber seal in the original one, or in the replacement. I did not use any sealant.

Are these supposed to be installed dry,and  without a seal?
John
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Online Chuck in Indiana

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Re: 2001 EV low fuel sensor installation.
« Reply #1 on: September 14, 2021, 05:44:42 PM »
There should be a plastic sealing washer around the black tube. Yes, installed dry.
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Online sdcr

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Re: 2001 EV low fuel sensor installation.
« Reply #2 on: September 14, 2021, 06:56:13 PM »

Chuck,

Thanks. I did not find any plastic sealing washer on the original part, which I found surprising. But, since that one did not leak, and the replacement also did not have any washer, I made the assumption that it was how they did it in Italy.

Anyone know of a source for the correct sealing washer?

There should be a plastic sealing washer around the black tube. Yes, installed dry.
John
2001 EV California
2009 Jaguar XK

Online sdcr

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Re: 2001 EV low fuel sensor installation.
« Reply #3 on: September 15, 2021, 12:53:25 PM »
Okay, so a little more digging, and I discover that the original sensor has a “ alloy crush washer”, that appears to be unremovable.

 So on the replacement LF sensor, which is still installed in the tank, will probably also be unremovable /unreplacable..

Any suggestions to seal the leaking low fuel light sensor, which is leaking through the threads?
« Last Edit: September 15, 2021, 01:52:25 PM by sdcr »
John
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Re: 2001 EV low fuel sensor installation.
« Reply #3 on: September 15, 2021, 12:53:25 PM »

Online jwinwi

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Re: 2001 EV low fuel sensor installation.
« Reply #4 on: September 15, 2021, 01:08:23 PM »
Teflon tape? No experience here...
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Offline twodogs

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Re: 2001 EV low fuel sensor installation.
« Reply #5 on: September 15, 2021, 01:30:27 PM »
I had to put the gas resistant Teflon tape on the one I did, it was yellow color not the white, hope this helps.
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Online sdcr

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Re: 2001 EV low fuel sensor installation.
« Reply #6 on: September 15, 2021, 01:53:28 PM »
Thanks, I’m going to try this.

I had to put the gas resistant Teflon tape on the one I did, it was yellow color not the white, hope this helps.
John
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2009 Jaguar XK

Offline Wayne Orwig

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Re: 2001 EV low fuel sensor installation.
« Reply #7 on: September 15, 2021, 02:21:29 PM »
On the ones I have seen, the seal is a hard white plastic (teflon?) washer in the fitting. Like a crush washer. Since it is not NPT threaded, teflon tape is not likely to work well.

I would take it to a friendly auto parts place and se if they have a crush washer that might fit. Of course finding a friendly auto parts place is nearly impossible.
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Online sdcr

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Re: 2001 EV low fuel sensor installation.
« Reply #8 on: September 15, 2021, 03:20:44 PM »
Wayne,
Thanks, I will take the original, inoperative sensor to a Napa store. Those guys usually are knowledgeable as well as helpful

.
On the ones I have seen, the seal is a hard white plastic (teflon?) washer in the fitting. Like a crush washer. Since it is not NPT threaded, teflon tape is not likely to work well.

I would take it to a friendly auto parts place and se if they have a crush washer that might fit. Of course finding a friendly auto parts place is nearly impossible.
John
2001 EV California
2009 Jaguar XK

Offline Rich A

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Re: 2001 EV low fuel sensor installation.
« Reply #9 on: September 15, 2021, 06:24:43 PM »
Check, but I think it's a 14 mm ID, 18 mm OD washer. One of these might work:

https://tinyurl.com/2n7m3mct

Rich

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Re: 2001 EV low fuel sensor installation.
« Reply #10 on: September 15, 2021, 07:19:26 PM »
Thanks Rich. I do appreciate all of the input, specifically regarding the washer.

What is a little confusing, is that on both of the sensors I have, the original kaput one, as well as the replacement did not have any sealing washer. Except, that there is a unremovable crushwasher in place.

At any rate, I’m willing to try anything to keep premium gas, from dripping onto a hot engine.

Check, but I think it's a 14 mm ID, 18 mm OD washer. One of these might work:

https://tinyurl.com/2n7m3mct

Rich
« Last Edit: September 15, 2021, 07:38:41 PM by sdcr »
John
2001 EV California
2009 Jaguar XK

Offline Rich A

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Re: 2001 EV low fuel sensor installation.
« Reply #11 on: September 15, 2021, 07:59:36 PM »
The parts book shows a washer (go to page 20): https://www.thisoldtractor.com/mg_manuals/spare_parts_catalog_california_aluminum_special_sport.pdf

If one of yours has a crush washer, it's probably stuck to the sensor housing.

Rich


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