Fuel Gauge Wiring Query

[BIG_MVS]

:lol: blah blah...:

Oh get over it Big M... how about doing something useful as a mod, and setting up a technical section with all of JohnC's posts nicely index? Eh.. bit of useful work for you lad, and given your IT skills all done in a jiffy I'm sure chop chop...

I'd love to but my hands are relatively tied. I can only move, delete or edit posts.

So does it matter if the spring falls off? I suppose it just lies there but is there any danger of it fouling the outlet of the fuel tank ?

Paul, now having seen the parts list and what the spring is doing, I would refit it in its original position as it will stop it possibly moving from side to side as the fuel sloshes around the tank. I have not actually seen it, but it looks as if it can be push fitted over the protrusion in the end cap in such a way that it is held there while you replace the sensor into the tank.... if it keeps falling off, from what I can see, you could possibly tighten the circle of the narrower part of the spring to "clip" onto the end cap.
With regard to it fouling the outlet of the tank.... it does look, from the parts list, a bit too big to really cause a problem.
Hope this helps.

John

Update. 18.7 gals reading gone after reset, went back to 9.7 galls and is going down as I drive. I will see what happens

Sounds good Nick

The funny thing is that Jon Viola only got rid of the car because his fuel guage didn't work

Or as Si21 would put it...

My Ruin-u's have taught me to laugh at in the face of break-downs

aat.the moment I.remain.ruined but ya just have to keep laughing dontcha

Thank John.
When I reinstalled it I aimed the end of the sensor onto the spring - thinking it probably had something to do with locating it on the tank. So at the moment its sandwich between tank and sensor. Bit loathed to take it apart and try to recover said spring - for one I dont have a long pair of grabbers to retrieve it

Bit loathed to take it apart and try to recover said spring - for one I don't have a long pair of grabbers to retrieve it

That's why I always carry a straightened out wire coat hanger in the car for events such as these.... (bend a quick hook.) ..... its amazing what you can do with them.
The other thing I carry is... what looks like a portable radio telescopic aerial but with a magnet in the end...... mind you if the spring is stainless steel, it won`t pick up..... then I resort to the coat hanger.

Bit loathed to take it apart and try to recover said spring - for one I don't have a long pair of grabbers to retrieve it

That's why I always carry a straightened out wire coat hanger in the car for events such as these.... (bend a quick hook.) ..... its amazing what you can do with them.
The other thing I carry is... what looks like a portable radio telescopic aerial but with a magnet in the end...... mind you if the spring is stainless steel, it won`t pick up..... then I resort to the coat hanger.

I also have both of those tools. Coat hanger is most useful!

(oh and the relay appears to be ok)

Whilst we're on the subject- anykne got the wiring diagram for the earlier type of system without the black box?

Will need to check the continuity on mine at some point.

Thanks

.....anyone got the wiring diagram for the earlier type of system without the black box?

Here you go Jon.



As you can see from the high lighted part of the cct, it is very simple compared to the later types, from what I have read on this forum about these, there is a spiral wire coming from the top of the sensor to the float which has a habit of snapping off at one end or the other, if this is the case, suggest sliding, say, 1 inch of heat shrink down the wire before soldering, having soldered, slide the heat shrink up over the joint and cable, apply heat gun or similar. This should strengthen the joint and make it less flexible so, hopefully, reducing the risk of it happening too often. I have not done this myself on an early sensor, but have used the same principal before.... and it has worked.

John

Thanks for that.

I know it's not the sensor as this is new so need to follow the loom into the car and check from there...

Nick has now repositioned them to the other end of the connector and it appears.... fingers crossed... that it is now working ....

Err..... can I uncross my fingers yet? and what happens when you put fuel in the tank..... for instance, put in 10 litres, and the gauge should have gone up just over 2 gals.