Re [Innaccurate fuel guage]

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Guest

Guest
Julian et al
Had a look at my fuel tanks over the weekend - there had been a problem
with innaccurate readings on remaining content of tanks (not the larger
sub-fuel tank) but the OE toyota fuel tank.
Couldn't find any leaks or anything and no damaged fuel lines, so I
thought, its still a problem then I though "ah-ha! maybe the electrical
contacts are a bit iffy" So I took out the middle 2 seats and did a
resitance test on the sender unit conncetors (it is acceptable between
2.0 & 3.0 ohms on the 200 scale for a full tank of 95-100 ltrs - mine
was 2.5 ohms as it was between 3/4 and full). No problem with the
readings but the electrical connectors were a might dusty (well, a lot
actually...desert stuff...) so I cleaned them all off and whizzed a bit
of WD40 on them - problem seemed to have been solved - however I want to
make doubly sure so when the tank is nearly empty I'll do another test
and check the resistance. Hopefully the problem is now solved properly,
but I'm going to check all the electric system and all fluids to make
sure there is nothing I've missed.
If any of you have a similar problem, it might be worth checking the
resistivity of the electrical contacts in the sender unit.
Regards
Renate
 
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Guest

Guest
Well done Renate, glad to see that you have made some progress with it.
When I opened the hatch under the seats, I had considered sticking a
ring of foam, a bit like pipe lagging, around the inspection hatch
between the tank and the car body to prevent water and other crud
building up around the tanks inspection hatch. I have seen this on
other cars where it worked well.
This would help protect the contacts and make it easier if you ever
need to look into the tank in the future because there would be less
crud to clean away.
Something to consider next time you are in there.
--
Regards,
Julian Voelcker
Mobile: 07971 540362
Cirencester, United Kingdom
1994 HDJ80, 2.5" OME Lift, ARB
 
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Guest

Guest
Julian
This is worth considering - the carpet lets in a little bit of dust and stuff like that, but I was surprised just how free it was of sand (probably because it had never been looked at before...), although I really wanted to make sure the dust was removed carefully in case I had to look inside at the float but the readings seemed to indicate all was okay - next time will be at the end of June when the tank will be empty again... so I will make a card cut out for some foam to protect it. I also fixed a knocking sound which was a loose sub fuel tank fuel line, so that's been secured too. If the weather is okay tonight or tomorrow evening I'm going to grease the prop shafts too. I'm getting into the habit of doing bits in and around it again which is a good sign.
Next job is replacing all the fluids that haven't been replaced for a while and then the brakes - =A3218 all in I think is pretty good for the 4 discs and pads from milner offroad.
Then I'm going to check synth oils too again, and sometime also soon replace a break light bulb.
After this I' planning (with a little help from my friends) a full personal service from yours truly for the beast...this should be fun!
Renate
PS still haven't got a job yet...
Well done Renate, glad to see that you have made some progress with it.
When I opened the hatch under the seats, I had considered sticking a
ring of foam, a bit like pipe lagging, around the inspection hatch
between the tank and the car body to prevent water and other crud
building up around the tanks inspection hatch. I have seen this on
other cars where it worked well.
This would help protect the contacts and make it easier if you ever
need to look into the tank in the future because there would be less
crud to clean away.
Something to consider next time you are in there.
--
Regards,
Julian Voelcker
Mobile: 07971 540362
Cirencester, United Kingdom
1994 HDJ80, 2.5" OME Lift, ARB
 
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