55FM58
Member
- Posts
- 48
- Location
- Dagenham, Essex
And the next on the list of elektrikery things to solve is - the fuel gauge!!
On mine (ex-Mil 24v FFR) now the fuel gauge is reading maximum up deflection (i.e. full) all the time. Even when I know the tank in question is empty....
This is a 24v twin tank set up so there is no voltage regulator involved. Basically there is:
A green live 24v feed from the fuse box to the gauge.
A green/black connection from the gauge to the two micro switches on the change-over tap.
Green/black connections from the other side of the micro switches to the tank senders.
So far I have:
Swapped out the fuel gauge itself for a known good one - no change.
Checked the resistance from the senders - it varies as expected as the float is raised and lowered.
Tried grounding the senders to seperate earths - no change.
Tried connecting the gauge direct to a sender - no change
Really odd thing is if I disconnect the green/black connection from the back of the gauge thus breaking the circuit the gauge still read full whereas I expected no movement as no completed circuit.
This all started happening after I removed the multi-cluster, took out the two capillary temp gauges and the fuel gauge and replaced the bezel and glass, - can't see how that would affect anything but I mention it just in case....
Anyone come across this before and resolved it??
On mine (ex-Mil 24v FFR) now the fuel gauge is reading maximum up deflection (i.e. full) all the time. Even when I know the tank in question is empty....
This is a 24v twin tank set up so there is no voltage regulator involved. Basically there is:
A green live 24v feed from the fuse box to the gauge.
A green/black connection from the gauge to the two micro switches on the change-over tap.
Green/black connections from the other side of the micro switches to the tank senders.
So far I have:
Swapped out the fuel gauge itself for a known good one - no change.
Checked the resistance from the senders - it varies as expected as the float is raised and lowered.
Tried grounding the senders to seperate earths - no change.
Tried connecting the gauge direct to a sender - no change
Really odd thing is if I disconnect the green/black connection from the back of the gauge thus breaking the circuit the gauge still read full whereas I expected no movement as no completed circuit.
This all started happening after I removed the multi-cluster, took out the two capillary temp gauges and the fuel gauge and replaced the bezel and glass, - can't see how that would affect anything but I mention it just in case....
Anyone come across this before and resolved it??
so im watching this thread closely 
