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  #1  
Old 22nd March 2014, 09:42 AM
Davidbolam Davidbolam is offline
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Default fuel gauge

My tank of fuel is nearly full and the fuel gauge is only showing a bit over half.

Does the car need to have a full tank of fuel for the test or just sufficient to be tested?

Cheers

David
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  #2  
Old 22nd March 2014, 12:28 PM
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skov skov is offline
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It needs a full tank.
I don't know if the guage has to work properly or not though
You could always bodge the wiring or reposition the needle so it always reads as full for the test
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Old 22nd March 2014, 12:30 PM
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K4KEV K4KEV is offline
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Hi Dave ...did you cut the float arm and re bend it so it gives full scale defection of the potentiometer/resistor? if you have not that is what will be the cause, take the fuel sender out and offer it up to the outline of the tank (use a bit of masking tape on the rear tub including the sump where the sock sits) you will then be able to see the deflection available ....if I remember rightly I think you need to cut the 2nd bend from the end of the wire then rebend it to put the float back in its original position albeit a little shorter which will allow it FSD on the pot.
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Old 22nd March 2014, 05:50 PM
Davidbolam Davidbolam is offline
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Quote:
Originally Posted by K4KEV View Post
Hi Dave ...did you cut the float arm and re bend it so it gives full scale defection of the potentiometer/resistor? if you have not that is what will be the cause, take the fuel sender out and offer it up to the outline of the tank (use a bit of masking tape on the rear tub including the sump where the sock sits) you will then be able to see the deflection available ....if I remember rightly I think you need to cut the 2nd bend from the end of the wire then rebend it to put the float back in its original position albeit a little shorter which will allow it FSD on the pot.
Yes kev. I bent the float arm to shorten it but may have not allowed for the full travel up.

It seems to read low all the way up the scale.

I might have to "re calibrate" the needle. I've been searching on mx5 westie builds and they have done it. I am planning on getting rid of the original gauges after iva and going for something like a koso dash.

David
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Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack.

Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though).
Car iva'd and passed 15/08/2014. Finished weight 572kg.
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  #5  
Old 30th April 2014, 02:18 PM
baz-r baz-r is offline
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the iva man looked down my filler for the fuel leval on my test even tho my gauge was saying full

there is no requirement for a fuel gauge so i cant see how thay could fail you but you could brim with fuel at your iva
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  #6  
Old 1st May 2014, 01:59 PM
flyerncle flyerncle is offline
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More of a conveinience thing to know how much is in,why not take it out and do a measurement ouside the tank from e to f and see what the guage reads. Ie move arm up and down on the float.
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Old 1st May 2014, 04:06 PM
Davidbolam Davidbolam is offline
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Ive been looking at the westfield build sites and a popular approach is to fill the tank and the reposition the needle to re-calibrate it! That way when it reads empty the will probably be 1/4 tank - plenty of reserve!

I am now planning any round the world trips in it. just quick blasts then to refill the tank (must be the aviation in me) and then home to defrost
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Click to see my build photos on Flikr

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Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack.

Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though).
Car iva'd and passed 15/08/2014. Finished weight 572kg.
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  #8  
Old 2nd May 2014, 09:41 AM
flyerncle flyerncle is offline
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Dont forget diversion and 45 mins reserve Aviator .!
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No parachute require to freefall,only if you want to do it twice.
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