fuel guage

Hiya,
Has anyone got a fuel gauge for a 78 bay?.The sender unit has been changed but will still only read 3/4 when full.

Thanks Ian

 

hi guys,
Does anyone know how to repaire one?

 

You could carefuly bend the arm on the sender to make the gauge read fuller

 

What about this, i know it says up to 72 but aren't they all the same?

http://www.ebay.co.uk/itm/VW-TYPE-2-T2-EARLY-BAY-CAMPER-VAN-DASH-INSTRUMENT-CLUSTER-VDO-FUEL-GAUGE-/130632470603?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1e6a4d504b

 

It would work but it would be the wrong one for your bus

 

im not sure it would work, the earlies had different senders and different bits on the back of the dash to steady the signal

 

If the needle moves all the way "down" when the bus is turned off, I'd go with bending the arm. Seems to me that even if you changed the gauge it would still read the same ? if it's only getting at much signal strength back to the gauge

 

does anyone know the voltage range(presume it works on voltage not current)then can take it out and inject the correct voltage into it to check the dails full range.Then i know if it is the dial or sender.
Thanks Ian

 

http://thelatebay.com/index.php?topic=107

 

Thanks great link.Now to do the job!! ;D

 

Very late reply on this. Had the same on mine and after getting multiple replacement gauges and finding them all doing the same, I discovered that the wire from the sender on the tank to the gauge on the dash has developed about 20 ohms of reistance over the years, thus never letting the gauge go much above half.
Running a new wire from sender to gauge instantly fixed the problem!

 

What Nick says - the old wire is adding resistance. 9/10 busses only read 3/4 when full. On a more +ve note, you'll never run out of petrol.